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[原创]2022年游戏安全技术竞赛-PC方向-决赛
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2022-4-29 20:35
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决赛 writeup
文件说明
Patch
方案一
hook并调用坐标绘制
搜索 比赛驱动的hook
然后我再hook
注入压缩包中的HookPatch.dll 可以看到效果
1 2 3 4 5 6 7 8 9 10 11 12 | FILE* file;AllocConsole();freopen_s(&file, "CONIN$", "r", stdin);freopen_s(&file, "CONOUT$", "w", stdout);uint64_t hook = 0;while (true){ hook = FindPattern("dxgi.dll", "68 ?? ?? ?? ?? C7 44 24 04 ?? ?? ?? ??"); if (hook) break; Sleep(100);} |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | flag f[42];uint8_t* draw_rect = 0;uint8_t* draw_orig = 0;__int64 __fastcall sub_420(__int64 a1, __int64 a2, __int64 a3, __int64 a4, __int64 a5, __int64 a6, __int64 a7){ f[0] = { 50 , 50, 0x130bd0 , 0xf814b4 }; f[1] = { 50 , 122, 0x1bcd69 , 0xe9bdc5 }; f[2] = { 50 , 194, 0xd91997 , 0x4f7363 }; f[3] = { 50 , 266, 0xe82b18 , 0x28ec24 }; f[4] = { 50 , 338, 0x391faa , 0x22ae2e }; f[5] = { 50 , 410, 0xd77de2 , 0x2f62e }; f[6] = { 122 , 266, 0x71150 , 0x1894d4 }; f[7] = { 194 , 266, 0xc42e8b , 0xeb1f47 }; f[8] = { 266 , 266, 0x34cf2b , 0x534f3f }; f[9] = { 122 , 122, 0xd9e5f1 , 0xe9d505 }; f[10] = { 194 , 194, 0xc42d8b , 0x38f0f }; f[11] = { 770 , 50, 0xeabf17 , 0x8f7323 }; f[12] = { 698 , 122, 0xc42d8b , 0x532fbf }; f[13] = { 626 , 194, 0xd717af , 0x37cb9b }; f[14] = { 554 , 266, 0xc460e9 , 0x314ddd }; f[15] = { 482 , 338, 0xc7a989 , 0x11edbd }; f[16] = { 554 , 338, 0xab7100 , 0xf0747c }; f[17] = { 626 , 338, 0xc409a9 , 0xe12d6d }; f[18] = { 842 , 50, 0xd77e8b , 0x7bfff7 }; f[19] = { 914 , 50, 0xd9ad01 , 0x4985c5 }; f[20] = { 986 , 50, 0x39e156 , 0xf6c25a }; f[21] = { 842 , 122, 0x13207c , 0x7438b8 }; f[22] = { 914 , 194, 0xc9140b , 0xf3af5f }; f[23] = { 986 , 266, 0x53071f , 0x779bfb }; f[24] = { 1058 , 338, 0xd71106 , 0x5ee272 }; f[25] = { 1130 , 338, 0xeb60a1 , 0x11551d }; f[26] = { 1202 , 338, 0xeb67cd , 0xc5c9c9 }; f[27] = { 1274 , 338, 0xd71161 , 0x1752d }; f[28] = { 1130 , 50, 0x677611 , 0x41a58d }; f[29] = { 1202 , 50, 0x40173d , 0x95f9d9 }; f[30] = { 1274 , 50, 0xd77661 , 0x61b54d }; f[31] = { 1346 , 50, 0xefff9a , 0xc27eee }; f[32] = { 1202 , 122, 0xc404eb , 0xeb3fc7 }; f[33] = { 1274 , 194, 0xd7c6ef , 0xdf9b53 }; f[34] = { 1346 , 194, 0xd7701f , 0x171b1b }; f[35] = { 1418 , 194, 0xd71171 , 0x91e53d }; f[36] = { 1490 , 194, 0x3906ab , 0x138f3f }; f[37] = { 1346 , 266, 0x96663 , 0x83f72f }; f[38] = { 1418 , 338, 0x732157 , 0x47638b }; f[39] = { 1490 , 338, 0x353730 , 0x587414 }; f[40] = { 1562 , 338, 0x6257a9 , 0x69fdc5 }; f[41] = { 1634 , 338, 0xd777af , 0xb7cb1b }; for (auto& data : f) { call_invoke(draw_rect, data.x, data.y, data.k1, data.k2, 0xFF2DDBE7, a3, a4, a5, a6, a7); //reinterpret_cast<uint64_t(*)(int, int, int, int, int, uint64_t, uint64_t, uint64_t, uint64_t, uint64_t)>(draw_rect) // (data.x, data.y, data.k1, data.k2, 0xFFFFFF00, a3, a4, a5, a6, a7); } return 0; |
方案二
通过虚拟机模拟,得到绘制坐标信息
再通过std::vector<uint32_t> VM::OutVituralOpCodeTable(const std::vector<Opcode>& opcodes)
生成新的opcode
利用驱动loadimg 回调
patch 目标驱动
由于是通过loadimg进行patch 所以PatchDriver.sys 需要在比赛驱动之前加载
加载PatchDriver.sys 后加载比赛驱动在运行2022游戏安全技术竞赛决赛.exe 可以看到flag
注入screenshot.dll 按home 即可截图 截图文件在 d:\dwm.jpg
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | EE2362FC Reg[0],Reg[1] <- Draw(50,50,130bd0,f814b4)EE2362FC Reg[0],Reg[1] <- Draw(50,122,1bcd69,e9bdc5)EE2362FC Reg[0],Reg[1] <- Draw(50,194,d91997,4f7363)EE2362FC Reg[0],Reg[1] <- Draw(50,266,e82b18,28ec24)EE2362FC Reg[0],Reg[1] <- Draw(50,338,391faa,22ae2e)EE2362FC Reg[0],Reg[1] <- Draw(50,410,d77de2,2f62e)EE2362FC Reg[0],Reg[1] <- Draw(122,266,71150,1894d4)EE2362FC Reg[0],Reg[1] <- Draw(194,266,c42e8b,eb1f47)EE2362FC Reg[0],Reg[1] <- Draw(266,266,34cf2b,534f3f)EE2362FC Reg[0],Reg[1] <- Draw(122,122,d9e5f1,e9d505)EE2362FC Reg[0],Reg[1] <- Draw(194,194,c42d8b,38f0f)EE2362FC Reg[0],Reg[1] <- Draw(770,50,eabf17,8f7323)EE2362FC Reg[0],Reg[1] <- Draw(698,122,c42d8b,532fbf)EE2362FC Reg[0],Reg[1] <- Draw(626,194,d717af,37cb9b)EE2362FC Reg[0],Reg[1] <- Draw(554,266,c460e9,314ddd)EE2362FC Reg[0],Reg[1] <- Draw(482,338,c7a989,11edbd)EE2362FC Reg[0],Reg[1] <- Draw(554,338,ab7100,f0747c)EE2362FC Reg[0],Reg[1] <- Draw(626,338,c409a9,e12d6d)EE2362FC Reg[0],Reg[1] <- Draw(842,50,d77e8b,7bfff7)EE2362FC Reg[0],Reg[1] <- Draw(914,50,d9ad01,4985c5)EE2362FC Reg[0],Reg[1] <- Draw(986,50,39e156,f6c25a)EE2362FC Reg[0],Reg[1] <- Draw(842,122,13207c,7438b8)EE2362FC Reg[0],Reg[1] <- Draw(914,194,c9140b,f3af5f)EE2362FC Reg[0],Reg[1] <- Draw(986,266,53071f,779bfb)EE2362FC Reg[0],Reg[1] <- Draw(1058,338,d71106,5ee272)EE2362FC Reg[0],Reg[1] <- Draw(1130,338,eb60a1,11551d)EE2362FC Reg[0],Reg[1] <- Draw(1202,338,eb67cd,c5c9c9)EE2362FC Reg[0],Reg[1] <- Draw(1274,338,d71161,1752d)EE2362FC Reg[0],Reg[1] <- Draw(1130,50,677611,41a58d)EE2362FC Reg[0],Reg[1] <- Draw(1202,50,40173d,95f9d9)EE2362FC Reg[0],Reg[1] <- Draw(1274,50,d77661,61b54d)EE2362FC Reg[0],Reg[1] <- Draw(1346,50,efff9a,c27eee)EE2362FC Reg[0],Reg[1] <- Draw(1202,122,c404eb,eb3fc7)EE2362FC Reg[0],Reg[1] <- Draw(1274,194,d7c6ef,df9b53)EE2362FC Reg[0],Reg[1] <- Draw(1346,194,d7701f,171b1b)EE2362FC Reg[0],Reg[1] <- Draw(1418,194,d71171,91e53d)EE2362FC Reg[0],Reg[1] <- Draw(1490,194,3906ab,138f3f)EE2362FC Reg[0],Reg[1] <- Draw(1346,266,96663,83f72f)EE2362FC Reg[0],Reg[1] <- Draw(1418,338,732157,47638b)EE2362FC Reg[0],Reg[1] <- Draw(1490,338,353730,587414)EE2362FC Reg[0],Reg[1] <- Draw(1562,338,6257a9,69fdc5)EE2362FC Reg[0],Reg[1] <- Draw(1634,338,d777af,b7cb1b) |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | VOID LoadImageNotify( _In_ PUNICODE_STRING FullImageName, _In_ HANDLE ProcessId, _In_ PIMAGE_INFO ImageInfo){ if (FullImageName != nullptr && MmIsAddressValid(FullImageName)) { if (ProcessId == 0) // 是否是驱动 { auto ImageName = FullImageName->Buffer; if (wcsstr(ImageName, L"2022GameSafeRace.sys")) { auto PatchFree = reinterpret_cast<uint8_t*>(ImageInfo->ImageBase) + 0x18a4; auto JmpAddress = reinterpret_cast<uint8_t*>(ImageInfo->ImageBase) + 0x19ea; char jmp[] = { 0xe9,0x00,0x00,0x00,0x00 }; *(uint32_t*)(jmp + 1) = (ULONG64)(JmpAddress - PatchFree - 5); // patch free MdlCopyMemory(PatchFree, &jmp, sizeof(jmp)); // patch vad断链 PatchFree = reinterpret_cast<uint8_t*>(ImageInfo->ImageBase) + 0x1aae; JmpAddress = reinterpret_cast<uint8_t*>(ImageInfo->ImageBase) + 0x1ac9; *(uint32_t*)(jmp + 1) = (ULONG64)(JmpAddress - PatchFree - 5); MdlCopyMemory(PatchFree, &jmp, sizeof(jmp)); MdlCopyMemory(PatchFree, &jmp, sizeof(jmp)); //patch表 PatchFree = reinterpret_cast<uint8_t*>(ImageInfo->ImageBase) + 0x4030; MdlCopyMemory(PatchFree, Table, sizeof(Table)); } } }} |
驱动分析
通讯
注册回调
1 2 3 4 5 6 7 8 9 10 | NTSTATUS __fastcall sub_140001438(void *a1, BOOLEAN a2){ SYSTEM_FIRMWARE_TABLE_HANDLER SystemInformation; // [rsp+20h] [rbp-28h] BYREF SystemInformation.DriverObject = a1; SystemInformation.Register = a2; SystemInformation.FirmwareTableHandler = (PFNFTH)sub_1400013E0; SystemInformation.ProviderSignature = 0x52414E44; return ZwSetSystemInformation(SystemRegisterFirmwareTableInformationHandler, &SystemInformation, 0x18ui64);} |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | __int64 __fastcall sub_140003530(PVOID Parameter){ HANDLE ProcessHeap; // rax char *v2; // rdx __int64 result; // rax ULONG ReturnLength; // [rsp+38h] [rbp+10h] BYREF ProcessHeap = GetProcessHeap(); v2 = (char *)HeapAlloc(ProcessHeap, 8u, 0x28ui64); result = 0i64; *(_OWORD *)v2 = 0i64; *((_OWORD *)v2 + 1) = 0i64; *((_QWORD *)v2 + 4) = 0i64; if ( v2 ) { *((_DWORD *)v2 + 2) = 0; *((_DWORD *)v2 + 1) = 1; *(_DWORD *)v2 = 1380011588; *((_DWORD *)v2 + 3) = 20; *(_QWORD *)(v2 + 20) = 8193i64; *((_QWORD *)v2 + 4) = D3DCompile; ReturnLength = 40; NtQuerySystemInformation(SystemFirmwareTableInformation, v2, 0x28u, &ReturnLength); return 0i64; } return result;} |
获取DWM PEPROCESS
循环遍历进程名有DWM的进程
起始Processid 为 0x100000
每次循环减4
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | PEPROCESS GetDwmProcess()//0x140001318{ PEPROCESS v0; // rdi unsigned int ProcessId; // esi void *ProcessImageFileName; // rbx void *ProcessPeb; // rbx struct _KAPC_STATE ApcState; // [rsp+20h] [rbp-60h] BYREF int SubStr; // [rsp+A0h] [rbp+20h] BYREF PEPROCESS Process; // [rsp+A8h] [rbp+28h] BYREF v0 = 0i64; ProcessId = 0x100000; while ( 1 ) { if ( PsLookupProcessByProcessId((HANDLE)ProcessId, &Process) < 0 ) goto LABEL_7; ObfDereferenceObject(Process); ProcessImageFileName = (void *)PsGetProcessImageFileName(Process); if ( !MmIsAddressValid(ProcessImageFileName) ) goto LABEL_7; SubStr = 'mwd'; if ( !strstr((const char *)ProcessImageFileName, (const char *)&SubStr) ) goto LABEL_7; ProcessPeb = (void *)PsGetProcessPeb(Process); KeStackAttachProcess(Process, &ApcState); if ( MmIsAddressValid(ProcessPeb) ) break; KeUnstackDetachProcess(&ApcState);LABEL_7: ProcessId -= 4; if ( ProcessId <= 8 ) return v0; } v0 = Process; KeUnstackDetachProcess(&ApcState); return v0;} |
注入shellcode
大概流程,获取DWM EPROCESS
获取 D3DCompile 地址
搜索内存 获取 CDXGISwapChain::PresentMultiplaneOverlay
申请内存 复制shellcode 和 VmOpcodeTable 到DWM中 并解密
HookMem = CDXGISwapChain::PresentMultiplaneOverlay 头部字节 加上
6800006F99-push0000000000000000{0}C744240400000000-mov [rsp+04],00000000{0}C3-ret= 跳回 PresentMultiplaneOverlay
hook CDXGISwapChain::PresentMultiplaneOverlay 跳到shellcode + 860
v31 = PresentMultiplaneOverlay(v43, a2, v49, a4, v72, a5, v71);
sub_860+D18 Address:0x1578 Offset:0x1578
这里执行 hookmem
延迟5秒恢复hook
延迟15秒释放内存
获取模块
1 2 3 4 5 6 7 8 9 | ProcessId = PsGetProcessId(DwmProcess);GetModuleHandle(ProcessId, &Handle, "D3DCOMPILER_47.dll");// 从Ldr链里获取模块地址KeStackAttachProcess(Dwm, &ApcState); // 附加DWMif ( Handle ) // 如果模块存在 D3DCompile = GetProAddress((__int64)Handle, (__int64)"D3DCompile");// 获取函数D3DCompile地址KeUnstackDetachProcess(&ApcState); // 解除附加Handle = 0i64;v25 = 0i64;GetModuleHandle(ProcessId, &Handle, "dxgi.dll");// 获取dxgi模块地址 |
查找PresentMultiplaneOverlay
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | v5 = (char *)Handle; if ( Handle ) { v6 = (char *)Handle; for ( i = Handle < (char *)Handle + v25; i; i = v6 < (char *)Handle + v25 ) { if ( *(_QWORD *)v6 == qword_140004000 && *((_QWORD *)v6 + 1) == qword_140004008 && v6[0x10] == byte_140004010 )// 搜索特征码 PresentMultiplaneOverlay { PresentMultiplaneOverlay = v6; break; } ++v6; } } if ( unk_14000712C == 17134 && Handle ) // 如果为1803 { v8 = (char *)Handle + v25; while ( v5 < v8 ) { if ( !memcmp(v5, &unk_140004018, 0x15ui64) )// 搜索特征码 { PresentMultiplaneOverlay = v5; break; } ++v5; } } |
申请内存 并 copy Shellcode
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | KeStackAttachProcess(Dwm, &ApcState); ZwAllocateVirtualMemory((HANDLE)0xFFFFFFFFFFFFFFFFi64, &BaseAddress, 0i64, &RegionSize, 0x1000u, 0x40u);// 申请shellcode 内存 ZwAllocateVirtualMemory((HANDLE)0xFFFFFFFFFFFFFFFFi64, &HookMem, 0i64, &v23, 0x1000u, 0x40u);// hook内存? if ( BaseAddress && HookMem ) { memcpy_s(BaseAddress, 0x30BAui64, dword_140005A00, 0x16E6ui64);// 复制shellcode 到申请的内存中 v9 = 0; v10 = 0i64; do { ++v9; *((_BYTE *)BaseAddress + v10++) ^= 0xC3u; } while ( v9 < 0x16E6 ); // 解密shellcode memcpy_s((char *)BaseAddress + 0x16E6, 0x19D4ui64, dword_140004030, 0x19C4ui64);// 复制VmOpcodeTable到申请的内存中 v11 = 0; v12 = 0i64; do { ++v11; *((_BYTE *)BaseAddress + v12 + 0x16E6) ^= 0xCCu;// 解密 VmOpcodeTable ++v12; } while ( v11 < 0x19C4 ); *(_QWORD *)((char *)BaseAddress + 0x30AA) = D3DCompile; *(_QWORD *)((char *)BaseAddress + 0x30B2) = HookMem; *(_DWORD *)((char *)BaseAddress + dword_1400059F4) = 0x30A6 - dword_1400059F4; *(_DWORD *)((char *)BaseAddress + dword_1400059F8) = 0x30AE - dword_1400059F8; *(_DWORD *)((char *)BaseAddress + dword_1400070EC) = 0x671; *(_DWORD *)((char *)BaseAddress + dword_1400070E8) = 0x16E2 - dword_1400070E8; memcpy_s(HookMem, 14ui64, &loc_1400070F8, 14ui64);// PresentMultiplaneOverlay 头部字节码 v13 = (char *)HookMem; *(_DWORD *)((char *)HookMem + 15) = (_DWORD)PresentMultiplaneOverlay + 14; *(_DWORD *)(v13 + 0x17) = ((unsigned __int64)PresentMultiplaneOverlay + 14) >> 32; v13[14] = 0x68; *(_DWORD *)(v13 + 0x13) = 0x42444C7; v13[27] = 0xC3; |
Hook PresentMultiplaneOverlay
利用MDL 强行写入shellcode 到PresentMultiplaneOverlay
Hook shellcode 大概
push00000000//push 低32位mov [rsp+04]//mov 高32位ret//jmp [rsp] pop
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | KeUnstackDetachProcess(&ApcState);KeStackAttachProcess(Dwm, &ApcState);if ( BaseAddress && HookMem ){ if ( MmIsAddressValid(PresentMultiplaneOverlay) ) { Mdl = IoAllocateMdl(PresentMultiplaneOverlay, 0x100u, 0, 0, 0i64); MmProbeAndLockPages(Mdl, 1, IoReadAccess); v15 = (char *)MmMapLockedPagesSpecifyCache(Mdl, 0, MmNonCached, 0i64, 0, 0x10u);// hook if ( v15 ) { // 68 00000000 - push 00000000 { 0 } // C7 44 24 04 00000000 - mov [rsp+04],00000000 { 0 } // C3 - ret // shellcode v16 = (char *)BaseAddress + dword_1400070F0;// sub_860,各种初始化 *(_DWORD *)(v15 + 1) = (_DWORD)v16; *(_DWORD *)(v15 + 9) = HIDWORD(v16);// 往里面写数据 *v15 = 0x68; // push shellcode sub_860 *(_DWORD *)(v15 + 5) = 69485767; // mov [rsp+04],00000000 v15[13] = 0xC3; // ret } MmUnmapLockedPages(v15, Mdl); MmUnlockPages(Mdl); IoFreeMdl(Mdl); } |
VAD断链?
直接patch吧 一看就知道啥东西
没仔细看导致我minhook失败调我半天
1 2 3 4 5 | v27[0] = (__int64)BaseAddress;v29 = 0;v27[1] = 0x30BAi64;v28 = (unsigned int)PsGetProcessId(Dwm);sub_140001A84((__int64)v27); |
延迟5秒 并恢复hook
延迟5秒恢复PresentMultiplaneOverlay 的hook
loc_1400070F8 里是PresentMultiplaneOverlay头部字节
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | Interval.QuadPart = -50000000i64;KeDelayExecutionThread(0, 0, &Interval); // 恢复hookKeStackAttachProcess(Dwm, &ApcState);if ( BaseAddress ){ if ( HookMem ) { sub_140001B30(); if ( MmIsAddressValid(PresentMultiplaneOverlay) ) { v17 = IoAllocateMdl(PresentMultiplaneOverlay, 0x100u, 0, 0, 0i64); MmProbeAndLockPages(v17, 1, IoReadAccess); v18 = MmMapLockedPagesSpecifyCache(v17, 0, MmNonCached, 0i64, 0, 0x10u);// mdl强写 if ( v18 ) { // // 48 8B C4 - mov rax,rsp // 55 - push rbp // 56 - push rsi // 57 - push rdi // 41 54 - push r12 // 41 55 - push r13 // 41 56 - push r14 // 41 57 - push r15 *(_QWORD *)v18 = loc_1400070F8; v18[2] = loc_140007100; *((_WORD *)v18 + 6) = loc_140007104; } MmUnmapLockedPages(v18, v17); MmUnlockPages(v17); IoFreeMdl(v17); } }}KeUnstackDetachProcess(&ApcState); |
延迟15秒释放shellcode
不用解释
1 2 3 4 5 6 7 8 9 10 11 12 13 | KeUnstackDetachProcess(&ApcState);Interval.QuadPart = -15000000i64; // 释放shellcodeKeDelayExecutionThread(0, 0, &Interval);KeStackAttachProcess(Dwm, &ApcState);if ( BaseAddress ){ if ( HookMem ) { ZwFreeVirtualMemory((HANDLE)0xFFFFFFFFFFFFFFFFi64, &BaseAddress, &RegionSize, 0x4000u);// 释放shellcode ZwFreeVirtualMemory((HANDLE)0xFFFFFFFFFFFFFFFFi64, &HookMem, &v23, 0x4000u); }}KeUnstackDetachProcess(&ApcState); |
完整分析
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 | void inject_shellcode(){ __int64 D3DCompile; // r15 void *PresentMultiplaneOverlay; // rsi struct _KPROCESS *DwmProcess; // rax struct _KPROCESS *Dwm; // rdi HANDLE ProcessId; // rbx char *v5; // rbx char *v6; // rcx bool i; // cf char *v8; // r14 unsigned int v9; // edx __int64 v10; // rcx unsigned int v11; // edx __int64 v12; // rcx char *v13; // rax struct _MDL *Mdl; // rbx char *v15; // rax char *v16; // rdx struct _MDL *v17; // rbx _DWORD *v18; // rax PVOID BaseAddress; // [rsp+38h] [rbp-49h] BYREF PVOID HookMem; // [rsp+40h] [rbp-41h] BYREF union _LARGE_INTEGER Interval; // [rsp+48h] [rbp-39h] BYREF ULONG_PTR RegionSize; // [rsp+50h] [rbp-31h] BYREF ULONG_PTR v23; // [rsp+58h] [rbp-29h] BYREF void *Handle; // [rsp+60h] [rbp-21h] BYREF __int64 v25; // [rsp+68h] [rbp-19h] struct _KAPC_STATE ApcState; // [rsp+70h] [rbp-11h] BYREF __int64 v27[2]; // [rsp+A0h] [rbp+1Fh] BYREF unsigned int v28; // [rsp+B0h] [rbp+2Fh] int v29; // [rsp+B4h] [rbp+33h] v23 = 0x1000i64; D3DCompile = 0i64; BaseAddress = 0i64; PresentMultiplaneOverlay = 0i64; HookMem = 0i64; RegionSize = 0x30BAi64; DwmProcess = GetDwmProcess(); Dwm = DwmProcess; if ( DwmProcess ) { Handle = 0i64; v25 = 0i64; ProcessId = PsGetProcessId(DwmProcess); GetModuleHandle(ProcessId, &Handle, "D3DCOMPILER_47.dll");// 从Ldr链里获取模块地址 KeStackAttachProcess(Dwm, &ApcState); // 附加DWM if ( Handle ) // 如果模块存在 D3DCompile = GetProAddress((__int64)Handle, (__int64)"D3DCompile");// 获取函数D3DCompile地址 KeUnstackDetachProcess(&ApcState); // 解除附加 Handle = 0i64; v25 = 0i64; GetModuleHandle(ProcessId, &Handle, "dxgi.dll");// 获取dxgi模块地址 KeStackAttachProcess(Dwm, &ApcState); v5 = (char *)Handle; if ( Handle ) { v6 = (char *)Handle; for ( i = Handle < (char *)Handle + v25; i; i = v6 < (char *)Handle + v25 ) { if ( *(_QWORD *)v6 == qword_140004000 && *((_QWORD *)v6 + 1) == qword_140004008 && v6[0x10] == byte_140004010 )// 搜索特征码 PresentMultiplaneOverlay { PresentMultiplaneOverlay = v6; break; } ++v6; } } if ( VersionInformation.dwBuildNumber == 17134 && Handle )// 如果为1803 { v8 = (char *)Handle + v25; while ( v5 < v8 ) { if ( !memcmp(v5, &unk_140004018, 0x15ui64) )// 搜索特征码 { PresentMultiplaneOverlay = v5; break; } ++v5; } } KeUnstackDetachProcess(&ApcState); if ( D3DCompile && PresentMultiplaneOverlay )// 老方案 只不过放驱动里了 { KeStackAttachProcess(Dwm, &ApcState); ZwAllocateVirtualMemory((HANDLE)0xFFFFFFFFFFFFFFFFi64, &BaseAddress, 0i64, &RegionSize, 0x1000u, 0x40u);// 申请shellcode 内存 ZwAllocateVirtualMemory((HANDLE)0xFFFFFFFFFFFFFFFFi64, &HookMem, 0i64, &v23, 0x1000u, 0x40u);// hook内存? if ( BaseAddress && HookMem ) { memcpy_s(BaseAddress, 0x30BAui64, &unk_140005A00, 0x16E6ui64);// 复制shellcode 到申请的内存中 v9 = 0; v10 = 0i64; do { ++v9; *((_BYTE *)BaseAddress + v10++) ^= 0xC3u; } while ( v9 < 0x16E6 ); // 解密shellcode memcpy_s((char *)BaseAddress + 0x16E6, 0x19D4ui64, dword_140004030, 0x19C4ui64);// 复制VmOpcodeTable到申请的内存中 v11 = 0; v12 = 0i64; do { ++v11; *((_BYTE *)BaseAddress + v12 + 5862) ^= 0xCCu;// 解密 VmOpcodeTable ++v12; } while ( v11 < 0x19C4 ); *(_QWORD *)((char *)BaseAddress + 0x30AA) = D3DCompile; *(_QWORD *)((char *)BaseAddress + 0x30B2) = HookMem; *(_DWORD *)((char *)BaseAddress + dword_1400059F4) = 0x30A6 - dword_1400059F4; *(_DWORD *)((char *)BaseAddress + dword_1400059F8) = 0x30AE - dword_1400059F8; *(_DWORD *)((char *)BaseAddress + dword_1400070EC) = 0x671; *(_DWORD *)((char *)BaseAddress + dword_1400070E8) = 0x16E2 - dword_1400070E8; memcpy_s(HookMem, 14ui64, &qword_1400070F8, 14ui64);// PresentMultiplaneOverlay 头部字节码 v13 = (char *)HookMem; *(_DWORD *)((char *)HookMem + 15) = (_DWORD)PresentMultiplaneOverlay + 14; *(_DWORD *)(v13 + 0x17) = ((unsigned __int64)PresentMultiplaneOverlay + 14) >> 32; v13[14] = 0x68; *(_DWORD *)(v13 + 0x13) = 0x42444C7; v13[27] = 0xC3; } KeUnstackDetachProcess(&ApcState); KeStackAttachProcess(Dwm, &ApcState); if ( BaseAddress && HookMem ) { if ( MmIsAddressValid(PresentMultiplaneOverlay) ) { Mdl = IoAllocateMdl(PresentMultiplaneOverlay, 0x100u, 0, 0, 0i64); MmProbeAndLockPages(Mdl, 1, IoReadAccess); v15 = (char *)MmMapLockedPagesSpecifyCache(Mdl, 0, MmNonCached, 0i64, 0, 0x10u);// hook if ( v15 ) { // 68 00000000 - push 00000000 { 0 } // C7 44 24 04 00000000 - mov [rsp+04],00000000 { 0 } // C3 - ret // shellcode v16 = (char *)BaseAddress + dword_1400070F0;// sub_860,各种初始化 *(_DWORD *)(v15 + 1) = (_DWORD)v16; *(_DWORD *)(v15 + 9) = HIDWORD(v16);// 往里面写数据 *v15 = 0x68; // push shellcode sub_860 *(_DWORD *)(v15 + 5) = 69485767; // mov [rsp+04],00000000 v15[13] = 0xC3; // ret } MmUnmapLockedPages(v15, Mdl); MmUnlockPages(Mdl); IoFreeMdl(Mdl); } v27[0] = (__int64)BaseAddress; v29 = 0; v27[1] = 0x30BAi64; v28 = (unsigned int)PsGetProcessId(Dwm); sub_140001A84((__int64)v27); } KeUnstackDetachProcess(&ApcState); Interval.QuadPart = -50000000i64; KeDelayExecutionThread(0, 0, &Interval); // 恢复hook KeStackAttachProcess(Dwm, &ApcState); if ( BaseAddress ) { if ( HookMem ) { sub_140001B30(); if ( MmIsAddressValid(PresentMultiplaneOverlay) ) { v17 = IoAllocateMdl(PresentMultiplaneOverlay, 0x100u, 0, 0, 0i64); MmProbeAndLockPages(v17, 1, IoReadAccess); v18 = MmMapLockedPagesSpecifyCache(v17, 0, MmNonCached, 0i64, 0, 0x10u);// mdl强写 if ( v18 ) { // // 48 8B C4 - mov rax,rsp // 55 - push rbp // 56 - push rsi // 57 - push rdi // 41 54 - push r12 // 41 55 - push r13 // 41 56 - push r14 // 41 57 - push r15 *(_QWORD *)v18 = qword_1400070F8; v18[2] = dword_140007100; *((_WORD *)v18 + 6) = word_140007104; } MmUnmapLockedPages(v18, v17); MmUnlockPages(v17); IoFreeMdl(v17); } } } KeUnstackDetachProcess(&ApcState); Interval.QuadPart = -15000000i64; // 释放shellcode KeDelayExecutionThread(0, 0, &Interval); KeStackAttachProcess(Dwm, &ApcState); if ( BaseAddress ) { if ( HookMem ) { ZwFreeVirtualMemory((HANDLE)0xFFFFFFFFFFFFFFFFi64, &BaseAddress, &RegionSize, 0x4000u);// 释放shellcode ZwFreeVirtualMemory((HANDLE)0xFFFFFFFFFFFFFFFFi64, &HookMem, &v23, 0x4000u); } } KeUnstackDetachProcess(&ApcState); } }} |
Patch Free
大概流程
注册loadimg回调
比赛sys加载 触发回调
然后jmp 到
loc_1400019EA: ; CODE XREF: sub_1400014A0+5D↑j.text:00000001400019EA; sub_1400014A0+173↑j.text:00000001400019EA; sub_1400014A0+17C↑j.text:00000001400019EA488B4D37mov rcx, [rbp+57h+var_20].text:00000001400019EE4833CC xor rcx, rsp ; StackCookie.text:00000001400019F1E8 EA010000call __security_check_cookie.text:00000001400019F1.text:00000001400019F64C8D9C24C0000000lea r11, [rsp+0D0h+var_10].text:00000001400019FE498B5B20mov rbx, [r11+20h].text:0000000140001A02498B7328mov rsi, [r11+28h].text:0000000140001A06498B7B30mov rdi, [r11+30h].text:0000000140001A0A4D8B6338mov r12, [r11+38h].text:0000000140001A0E498BE3 mov rsp, r11.text:0000000140001A11415Fpop r15.text:0000000140001A13415Epop r14.text:0000000140001A155Dpop rbp.text:0000000140001A16C3 retn
Mdl强写
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | void MdlCopyMemory(PVOID address,PVOID buffer,size_t size){ __try { if (MmIsAddressValid((PVOID)address)) { auto pMdl = IoAllocateMdl(address, size, FALSE, FALSE, nullptr); if (pMdl) { MmBuildMdlForNonPagedPool(pMdl); auto lock = MmMapLockedPagesSpecifyCache(pMdl, KernelMode, MmCached, NULL, FALSE, NormalPagePriority); if (lock) { RtlCopyMemory(lock, buffer, size); MmUnmapLockedPages(lock, pMdl); } ExFreePool(pMdl); } } } __except (1) { }} |
Lodimg
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | VOID LoadImageNotify( _In_ PUNICODE_STRING FullImageName, _In_ HANDLE ProcessId, _In_ PIMAGE_INFO ImageInfo){ if (FullImageName != nullptr && MmIsAddressValid(FullImageName)) { if (ProcessId == 0) // 是否是驱动 { auto ImageName = FullImageName->Buffer; if (wcsstr(ImageName, L"2022GameSafeRace.sys")) { auto PatchFree = reinterpret_cast<uint8_t*>(ImageInfo->ImageBase) + 0x18a4; auto JmpAddress = reinterpret_cast<uint8_t*>(ImageInfo->ImageBase) + 0x19ea; char jmp[] = { 0xe9,0x00,0x00,0x00,0x00 }; *(uint32_t*)(jmp + 1) = (ULONG64)(JmpAddress - PatchFree + 5); MdlCopyMemory(PatchFree, &jmp, sizeof(jmp)); } } }} |
完整代码
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | #include <ntifs.h>#include <ntdef.h>#include <ntstatus.h>#include <cstdint>#define DPRINT(format, ...) DbgPrintEx(DPFLTR_IHVDRIVER_ID, DPFLTR_ERROR_LEVEL, format, __VA_ARGS__)void MdlCopyMemory(PVOID address,PVOID buffer,size_t size){ __try { if (MmIsAddressValid((PVOID)address)) { auto pMdl = IoAllocateMdl(address, size, FALSE, FALSE, nullptr); if (pMdl) { MmBuildMdlForNonPagedPool(pMdl); auto lock = MmMapLockedPagesSpecifyCache(pMdl, KernelMode, MmCached, NULL, FALSE, NormalPagePriority); if (lock) { RtlCopyMemory(lock, buffer, size); MmUnmapLockedPages(lock, pMdl); } ExFreePool(pMdl); } } } __except (1) { }}VOID LoadImageNotify( _In_ PUNICODE_STRING FullImageName, _In_ HANDLE ProcessId, _In_ PIMAGE_INFO ImageInfo){ if (FullImageName != nullptr && MmIsAddressValid(FullImageName)) { if (ProcessId == 0) // 是否是驱动 { auto ImageName = FullImageName->Buffer; if (wcsstr(ImageName, L"2022GameSafeRace.sys")) { auto PatchFree = reinterpret_cast<uint8_t*>(ImageInfo->ImageBase) + 0x18a4; auto JmpAddress = reinterpret_cast<uint8_t*>(ImageInfo->ImageBase) + 0x19ea; char jmp[] = { 0xe9,0x00,0x00,0x00,0x00 }; *(uint32_t*)(jmp + 1) = (ULONG64)(JmpAddress - PatchFree + 5); MdlCopyMemory(PatchFree, &jmp, sizeof(jmp)); } } }}VOID DriverUnload(PDRIVER_OBJECT pDriverObj){ PsRemoveLoadImageNotifyRoutine(LoadImageNotify);}EXTERN_C NTSTATUS DriverEntry(PDRIVER_OBJECT pDriverObj, PUNICODE_STRING pRegistryString){ pDriverObj->DriverUnload = DriverUnload; auto status = PsSetLoadImageNotifyRoutine(LoadImageNotify); return status;} |
Exe分析
WinMain下段跟
1 | CreateThread(0i64, 0i64, (LPTHREAD_START_ROUTINE)sub_140003530, 0i64, 0, &ThreadId); |
发现这段参加线程
点进去一看
发现NtQuerySystemInformation
明显是通过 NtQuerySystemInformation触发回调
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | __int64 __fastcall sub_140003530(PVOID Parameter){ HANDLE ProcessHeap; // rax char *v2; // rdx __int64 result; // rax ULONG ReturnLength; // [rsp+38h] [rbp+10h] BYREF ProcessHeap = GetProcessHeap(); v2 = (char *)HeapAlloc(ProcessHeap, 8u, 0x28ui64); result = 0i64; *(_OWORD *)v2 = 0i64; *((_OWORD *)v2 + 1) = 0i64; *((_QWORD *)v2 + 4) = 0i64; if ( v2 ) { *((_DWORD *)v2 + 2) = 0; *((_DWORD *)v2 + 1) = 1; *(_DWORD *)v2 = 1380011588; *((_DWORD *)v2 + 3) = 20; *(_QWORD *)(v2 + 20) = 8193i64; *((_QWORD *)v2 + 4) = D3DCompile; ReturnLength = 40; NtQuerySystemInformation(SystemFirmwareTableInformation, v2, 0x28u, &ReturnLength); return 0i64; } return result;} |
shellcode 分析
dump下shellcode 分析
卧槽? 这不是咱老朋友吗
不过虚拟机进化了
DrawRect
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | __int64 __fastcall DrawRect( int a1, int a2, int a3, int a4, float a5, __int64 a6, __int64 a7, __int64 a8, __int64 a9, __int64 a10){ __int64 v14; // r14 unsigned int v15; // ebx int v16; // ecx float v17; // xmm9_4 float v18; // xmm11_4 float v19; // xmm7_4 float v20; // xmm10_4 float *v21; // rcx float v22; // xmm0_4 float v23; // xmm8_4 float v24; // xmm6_4 float v25; // xmm3_4 float v26; // xmm1_4 float v27; // xmm8_4 float v28; // xmm7_4 float v29; // xmm5_4 float v30; // xmm4_4 float v31; // xmm2_4 __int64 v32; // rax float *v34; // [rsp+30h] [rbp-C8h] BYREF char v35[8]; // [rsp+40h] [rbp-B8h] BYREF float v36; // [rsp+48h] [rbp-B0h] float v37; // [rsp+4Ch] [rbp-ACh] int v38; // [rsp+108h] [rbp+10h] BYREF int v39; // [rsp+110h] [rbp+18h] BYREF int v40; // [rsp+118h] [rbp+20h] BYREF v14 = a6; v38 = 1; v15 = LODWORD(a5) + (a3 ^ (a1 + a2)) % 256 - a4 % 256; (*(void (__fastcall **)(__int64, int *, char *))(*(_QWORD *)a6 + 760i64))(a6, &v38, v35); v16 = (a3 ^ (a2 * a1)) % 256 - (a4 >> 8) % 256; v17 = (float)(v37 - (float)(2 * (v16 + a2) - 1)) / v37; v18 = (float)(v37 - (float)(2 * a2 + 99)) / v37; v19 = (float)((float)(2 * (v16 + a1) - 1) - v36) / v36; v20 = (float)((float)(2 * a1 + 99) - v36) / v36; (*(void (__fastcall **)(__int64, __int64, _QWORD, __int64, _DWORD, float **))(*(_QWORD *)v14 + 112i64))( v14, a7, 0i64, 4i64, 0, &v34); v21 = v34; a5 = 255.0; v34[2] = (float)0; v22 = a5; v23 = (float)((a3 ^ (a2 + a1 * (a2 + 1))) % 256 - (a4 >> 16) % 256); v24 = v23 + v19; v25 = v23 + v17; *v21 = v23 + v19; v26 = v23 + v20; v21[1] = v23 + v17; v27 = v23 + v18; v28 = (float)BYTE2(v15) / v22; v29 = (float)(unsigned __int8)(v15 >> 12) / v22; v30 = (float)(unsigned __int8)v15 / v22; v21[3] = v28; v21[4] = v29; v31 = (float)HIBYTE(v15) / v22; v21[6] = v31; v21[9] = (float)0; v21[13] = v31; v21[16] = (float)0; v21[20] = v31; v21[27] = v31; v21[5] = v30; v21[7] = v26; v21[8] = v25; v21[10] = v28; v21[11] = v29; v21[12] = v30; v21[14] = v24; v21[15] = v27; v21[17] = v28; v21[18] = v29; v21[19] = v30; v21[21] = v26; v21[22] = v27; v21[24] = v28; v21[25] = v29; v21[26] = v30; v21[23] = (float)0; (*(void (__fastcall **)(__int64, __int64, _QWORD))(*(_QWORD *)v14 + 120i64))(v14, a7, 0i64); v32 = *(_QWORD *)v14; v40 = 28; v39 = 0; (*(void (__fastcall **)(__int64, _QWORD, __int64, __int64 *, int *, int *))(v32 + 144))( v14, 0i64, 1i64, &a7, &v40, &v39); (*(void (__fastcall **)(__int64, __int64))(*(_QWORD *)v14 + 192i64))(v14, 5i64); (*(void (__fastcall **)(__int64, __int64))(*(_QWORD *)v14 + 136i64))(v14, a8); (*(void (__fastcall **)(__int64, __int64, _QWORD, _QWORD))(*(_QWORD *)v14 + 88i64))(v14, a9, 0i64, 0i64); (*(void (__fastcall **)(__int64, __int64, _QWORD, _QWORD))(*(_QWORD *)v14 + 72i64))(v14, a10, 0i64, 0i64); (*(void (__fastcall **)(__int64, _QWORD, _QWORD, _QWORD))(*(_QWORD *)v14 + 184i64))(v14, 0i64, 0i64, 0i64); return (*(__int64 (__fastcall **)(__int64, __int64))(*(_QWORD *)v14 + 104i64))(v14, 4i64);} |
加强版虚拟机
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | __int64 __fastcall sub_420(__int64 a1, __int64 a2, __int64 a3, __int64 a4, __int64 a5, __int64 a6, __int64 a7){ unsigned __int64 idx; // rsi unsigned __int64 vidx; // r8 signed int branch; // ecx unsigned __int64 v12; // rdx __int64 v13; // rcx unsigned int v14; // r9d __int64 v15; // r8 __int64 v16; // r9 unsigned int v17; // edx unsigned __int64 v18; // r10 unsigned __int64 v19; // rcx unsigned int v20; // r9d int v21; // r9d int v22; // eax __int64 result; // rax int reg[10]; // [rsp+60h] [rbp-21h] BYREF idx = 0i64; memset(reg, 0, 32); reg[8] = 50; reg[9] = 50; do { vidx = idx; branch = opcode[idx]; if ( branch > (int)0x9A8ECD52 ) { switch ( branch ) { case 0xEE2362FC: ++idx; v21 = reg[0]; v22 = reg[0] * (reg[1] + 1); reg[0] = opcode[idx] ^ 0x414345; reg[1] = (reg[0] ^ (reg[1] + v21)) % 256 + (((reg[0] ^ (v21 * reg[1])) % 256 + (((reg[0] ^ (reg[1] + v22)) % 256) << 8)) << 8); break; case 0xEE69524A: v19 = 0i64; v20 = opcode[vidx + 1]; opcode[idx] = -1; opcode[vidx + 1] = -1; if ( idx != 1 ) { do opcode[v19++] ^= v20; while ( v19 < idx - 1 ); } ++idx; break; case 0xFF4578AE: idx += 2i64; v16 = (int)opcode[vidx + 1]; v17 = opcode[idx]; if ( (_DWORD)v16 ) { v18 = idx; do { opcode[++v18] ^= v17; v17 = opcode[v18 - 1] + 0x12345678 * v17; --v16; } while ( v16 ); } opcode[vidx] = -1; opcode[vidx + 1] = -1; opcode[idx] = -1; break; case 0x1132EADF: idx += 2i64; reg[opcode[idx]] = opcode[vidx + 1]; break; default: if ( branch == 0x7852AAEF && opcode[0] == 0xEE69624A && opcode[1] == 0x689EDC0A && opcode[2] == 0x98EFDBC9 ) sub_0(reg[4], reg[5], reg[6], reg[7], 0xFF2DDBE7, a3, a4, a5, a6, a7); break; } } else { switch ( branch ) { case 0x9A8ECD52: reg[0] -= reg[1]; break; case 0x88659264: idx += 2i64; v12 = idx; v13 = (int)opcode[vidx + 1]; v14 = opcode[idx]; opcode[vidx] = -1; opcode[vidx + 1] = -1; v15 = v13; opcode[idx] = -1; if ( (_DWORD)v13 ) { do { opcode[++v12] ^= v14; --v15; } while ( v15 ); } break; case 0x89657EAD: reg[0] += reg[1]; break; case 0x8E7CADF2: idx += 2i64; reg[opcode[idx]] = reg[opcode[vidx + 1]]; break; case 0x9645AAED: if ( opcode[0] == 0xEE69624A && opcode[1] == 0x689EDC0A && opcode[2] == 0x98EFDBC9 ) sub_0(reg[4], reg[5], reg[6], reg[7], 0xFFFFFF00, a3, a4, a5, a6, a7); break; case 0x9645AEDC: idx = 0x671i64; break; } } result = 0x671i64; ++idx; } while ( idx < 0x671 ); return result;} |
虚拟机分析
虚拟机经过六次解密达到最终结果
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778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 | ====ExecVirtual[0]====Reg[8] = 50Reg[9] = 50-> Xor 1-> VMEnd====ExecVirtual[1]====Reg[8] = 50Reg[9] = 50-> Xor 1Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],3301906)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 360Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7631989)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 432Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],2299116)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 504Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9843946)Reg[6] = Reg[0]Reg[7] = Reg[1]-> VMEnd====ExecVirtual[2]====Reg[8] = 50Reg[9] = 50-> Xor 1Reg[0] = Reg[8]Reg[1] = 288Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],3301906)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 360Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7631989)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 432Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],2299116)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 504Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9843946)Reg[6] = Reg[0]Reg[7] = Reg[1]-> VMEnd====ExecVirtual[3]====Reg[8] = 50Reg[9] = 50-> Xor 1Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7882222)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 216Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 216Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],4728102)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 288Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],3301906)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 360Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7631989)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 432Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],2299116)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 504Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9843946)Reg[6] = Reg[0]Reg[7] = Reg[1]-> VMEnd====ExecVirtual[4]====Reg[8] = 50Reg[9] = 50-> Xor 1Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9843546)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 288Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9851444)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 360Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7882222)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 216Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 216Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],4728102)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 288Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],3301906)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 360Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7631989)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 432Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],2299116)Reg[6] = Reg[0]Reg[7] = Reg[1]Reg[0] = Reg[8]Reg[1] = 504Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9843946)Reg[6] = Reg[0]Reg[7] = Reg[1]-> VMEnd====ExecVirtual[5]====Reg[8] = 50Reg[9] = 50-> Xor 1Reg[0] = Reg[8]Reg[1] = 144Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9844004)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 216Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],11451615)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 72Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 72Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],8734638)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 144Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9864618)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 216Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9843546)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 288Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9851444)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 360Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7882222)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 216Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 216Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],4728102)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 288Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],3301906)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 360Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7631989)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 432Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],2299116)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 504Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9843946)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)-> VMEnd====ExecVirtual[6]====Reg[8] = 50Reg[9] = 50-> Xor 3-> Xor 2Reg[0] = Reg[8]Reg[4] = Reg[0]Reg[0] = Reg[4]Reg[1] = 1000Reg[0] -= Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],5392533)Reg[3] = Reg[0]Reg[0] = Reg[1]Reg[1] = Reg[3]Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 72Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[5]Reg[1] = 500Reg[0] -= Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],5934636)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[4] = Reg[0]Reg[0] = Reg[4]Reg[1] = 1000Reg[0] -= Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9984722)Reg[3] = Reg[0]Reg[0] = Reg[1]Reg[1] = Reg[3]Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)-> Xor 3Reg[0] = Reg[8]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 216Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],11102301)Reg[3] = Reg[0]Reg[0] = Reg[3]Reg[1] = Reg[3]Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[4] = Reg[0]Reg[0] = Reg[4]Reg[1] = 1000Reg[0] -= Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]-> Xor 2Reg[5] = Reg[0]Reg[0] = Reg[5]Reg[1] = 500Reg[0] -= Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7888111)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 360Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9846439)Reg[3] = Reg[0]Reg[0] = Reg[1]Reg[1] = Reg[3]Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 72Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[4]Reg[1] = 1000Reg[0] -= Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 216Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[5]Reg[1] = 500Reg[0] -= Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],4608533)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 144Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 216Reg[0] += Reg[1]-> Xor 3Reg[5] = Reg[0]Reg[0] = Reg[5]Reg[1] = 500Reg[0] -= Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],8744398)Reg[3] = Reg[0]Reg[0] = Reg[1]Reg[1] = Reg[3]Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 216Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[4]Reg[1] = 1000Reg[0] -= Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 216Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7703662)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 72Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 72Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[5]Reg[1] = 500Reg[0] -= Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]-> Xor 3Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],10004148)Reg[3] = Reg[0]Reg[#] = Reg[1]Reg[1] = Reg[3]Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 144Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[4]Reg[1] = 1000Reg[0] -= Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],8744654)Reg[3] = Reg[0]Reg[0] = Reg[1]Reg[1] = Reg[3]Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 720Reg[0] += Reg[1]Reg[8] = Reg[0]-> Xor 2Reg[0] = Reg[8]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],11271250)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 72Reg[0] -= Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 72Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],8744654)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 144Reg[0] -= Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]-> Xor 3Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9852138)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 216Reg[0] -= Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 216Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],8725420)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 288Reg[0] -= Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],8841932)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 216Reg[0] -= Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],15348293)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 144Reg[0] -= Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],8735468)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 72Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9846222)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 144Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],10022468)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 216Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7905811)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 72Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 72Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],5399353)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 144Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],8935246)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 216Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 216Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],1197146)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 288Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9851459)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 360Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],11150308)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 432Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],11150472)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 504Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9851428)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 360Reg[0] += Reg[1]Reg[8] = Reg[0]Reg[0] = Reg[8]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],2504020)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 72Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],87160)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 144Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9844004)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 216Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],11451615)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 72Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 72Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],8734638)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 144Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9864618)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 216Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9843546)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 288Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9851444)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 360Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 144Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7882222)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 216Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 216Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],4728102)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 288Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],3301906)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 360Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],7631989)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 432Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],2299116)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)Reg[0] = Reg[8]Reg[1] = 504Reg[0] += Reg[1]Reg[4] = Reg[0]Reg[0] = Reg[9]Reg[1] = 288Reg[0] += Reg[1]Reg[5] = Reg[0]Reg[0] = Reg[4]Reg[1] = Reg[5]Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],9843946)Reg[6] = Reg[0]Reg[7] = Reg[1]-> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFF2DDBE7)-> VMEnd |
还是老样子
1 2 | Reg[1] = 1000Reg[0] -= Reg[1] |
这里1000,500导致的坐标负数
1 2 3 4 5 6 | Reg[0],Reg[1] <- Decrypt(Reg[0],Reg[1],5392533)Reg[3] = Reg[0]Reg[0] = Reg[1]Reg[1] = Reg[3]Reg[6] = Reg[0]Reg[7] = Reg[1] |
这里导致的交换reg[5] reg[6]
生成新表
patch 500 1000导致的负数,
patch 交换 reg[5] reg[6]
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | std::vector<Opcode> VM::GenFixOpcode(std::vector<uint32_t>& Vopcodes){ int reg[10] = { 0 }; uint32_t idx = 0; std::vector<Opcode> outData; //printf_s("Reg[8] = 50\n"); //printf_s("Reg[9] = 50\n"); reg[8] = 50; reg[9] = 50; do { auto vidx = idx; auto branch = Vopcodes[idx]; if (branch) { switch (branch) { case operate::Decrypt: { ++idx; auto x = reg[0]; auto y = reg[1]; auto v = x * (y + 1);; reg[0] = Vopcodes[idx] ^ 'ACE'; reg[1] = ((reg[0] ^ (y + x)) % 256 + (((reg[0] ^ (x * y)) % 256 + (((reg[0] ^ (y + v)) % 256) << 8)) << 8)); printf_s("EE2362FC Reg[0],Reg[1] <- Draw(%d,%d,%x,%x)\n", reg[4],reg[5],reg[0], reg[1]); //printf_s("EE2362FC Reg[0],Reg[1] <- Decrypt(%d,%d)\n", reg[0], reg[2]); break; } case operate::Xor1: { auto i = 0i64; auto key = Vopcodes[vidx + 1]; Vopcodes[idx] = -1; Vopcodes[vidx + 1] = -1; if (idx != 1) { do Vopcodes[i++] ^= key; while (i < idx - 1); } ++idx; //printf_s("EE69524A -> Xor 1\n"); break; } case operate::Xor2: { idx += 2i64; auto count = Vopcodes[vidx + 1]; auto key = Vopcodes[idx]; if (count) { auto vidx_ = idx; do { Vopcodes[++vidx_] ^= key; key = Vopcodes[vidx_ - 1] + 0x12345678 * key; --count; } while (count); } Vopcodes[vidx] = -1; Vopcodes[vidx + 1] = -1; Vopcodes[idx] = -1; //printf_s("FF4578AE -> Xor 2\n"); break; } case operate::Xor3: { idx += 2i64; auto sidx = idx; auto count = Vopcodes[vidx + 1]; auto key = Vopcodes[idx]; Vopcodes[vidx] = -1; Vopcodes[vidx + 1] = -1; Vopcodes[idx] = -1; if (count) { do { Vopcodes[++sidx] ^= key; --count; } while (count); //printf_s("88659264 -> Xor 3\n"); } break; } case operate::RegSub: { reg[0] -= reg[1]; //printf_s("9A8ECD52 Reg[0] -= Reg[1]\n"); break; } case operate::RegAdd: reg[0] += reg[1]; //printf_s("89657EAD Reg[0] += Reg[1]\n"); break; case operate::RegSwap: { idx += 2i64; if (Vopcodes[idx] == 0 && Vopcodes[vidx + 1] == 1) Vopcodes[idx] = 3; reg[Vopcodes[idx]] = reg[Vopcodes[vidx + 1]]; //printf_s("8E7CADF2 Reg[%d] = Reg[%d]\n", Vopcodes[idx], Vopcodes[vidx + 1]); break; } case operate::RegAssignment: { idx += 2i64; if (Vopcodes[vidx + 1] == 1000 || Vopcodes[vidx + 1] == 500) Vopcodes[vidx + 1] = 0; reg[Vopcodes[idx]] = Vopcodes[vidx + 1]; //printf_s("1132EADF Reg[%d] = %d\n", Vopcodes[idx], Vopcodes[vidx + 1]); break; } case 0x9645AAED: { //if (Vopcodes[0] == 0xEE69624A && // Vopcodes[1] == 0x689EDC0A && // Vopcodes[2] == 0x98EFDBC9) // printf_s("9645AAED -> Draw(Reg[4],Reg[5],Reg[6],Reg[7],0xFFFFFF00)\n\n"); // 压根没到这个分支 break; } case operate::Draw: { if (Vopcodes[0] == 0xEE69624A && Vopcodes[1] == 0x689EDC0A && Vopcodes[2] == 0x98EFDBC9) { auto GenRegAssignment = [](int r,int value) { Opcode op; op.Type = operate::RegAssignment; op.Data.Assignment.Reg = r; op.Data.Assignment.Value = value; return op; }; for (size_t i = 4; i <= 7; i++) { outData.push_back(GenRegAssignment(i, reg[i])); } Opcode op; op.Type = operate::Draw; outData.push_back(op); //printf_s("7852AAEF -> Draw(%d,%d,%d,%d,0xFF2DDBE7)\n\n", reg[4], reg[5], reg[6], reg[7]); } break; } case operate::VmEnd: { printf_s("9645AEDC -> VMEnd\n"); idx = 0x671i64; break; } } } idx++; } while (idx < 0x671); return outData;} |
通过模拟执行得到rect信息 利用这些信息生成新的opcode
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | std::vector<uint32_t> VM::OutVituralOpCodeTable(const std::vector<Opcode>& opcodes){ std::vector<uint32_t> outData; outData.push_back(0xEE69624A); outData.push_back(0x689EDC0A); outData.push_back(0x98EFDBC9); auto idx = 0; for (auto op : opcodes) { auto vidx = idx; switch (op.Type) { case operate::RegSwap: { outData.push_back(RegSwap); outData.push_back(op.Data.Swap.Target); outData.push_back(op.Data.Swap.Source); break; } case operate::RegAssignment: { outData.push_back(RegAssignment); outData.push_back(op.Data.Assignment.Value); outData.push_back(op.Data.Assignment.Reg); break; } case operate::Draw: { outData.push_back(Draw); } default: break; } idx++; } outData.push_back(operate::VmEnd); if (outData.size() < 0x671) outData.resize(0x671); return outData;} |
截图
方案1
在我的dll直接实现,刚好比赛驱动用比赛驱动的hook
ScreenGrab · microsoft/DirectXTK Wiki (github.com)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | void screenshot(IDXGISwapChain* pSwapChain){ ID3D11Device* device; HRESULT gd = pSwapChain->GetDevice(__uuidof(ID3D11Device), (void**)&device); if (device && gd == S_OK) { //Get context ID3D11DeviceContext* context; device->GetImmediateContext(&context); //get back buffer ID3D11Texture2D* backbufferTex; HRESULT gb = pSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&backbufferTex); if (gb == S_OK) { HRESULT hr = DirectX::SaveWICTextureToFile(context, backbufferTex, GUID_ContainerFormatJpeg, L"d:\\dwm.jpg"); if (hr == S_OK) cout << "截图成功" << endl; } //Capture Frame }} |
从交换链里获取Device
再GetBuffer
再调用 dxtk SaveWICTextureToFile 保存到文件
方案2
lainswork/dwm-screen-shot: 将shellcode注入dwm.exe以进行屏幕截取 (github.com)
lainswork/shellcode-factory: shellcode 生成框架 (github.com)
利用shellcode 生成框架
通过符号获取hook地址
修改页面属性
veh 捕获异常 hook 获取交换链
利用交换链 getbuffer
exe 直接读这个buff 绘制出来
其实和我的方案一一毛一样 除了是shellcode
方案3
Abusing DComposition to render on external windows | secret club
劫持dwm窗口应该是个思路吧
劫持线程到自己exe
应该可以截图到吧
没具体实现
方案4
NVidia 游戏内覆盖截图
他那个基于显卡 直接copy的显存 经朋友测试的确可以截到
本来想看看的 毕竟上次泄露nv的驱动源码 但是我电脑不支持此方案
NVIDIA Capture SDK | NVIDIA Developer
NvFBC nv的视频录制sdk 是直接从显存里copy数据
按理也可以截图
不过最高支持win10 1803 我win11 所以没办法
所以这里没有测试方案
video-sdk-samples/nvEncDXGIOutputDuplicationSample at master · NVIDIA/video-sdk-samples (github.com)
他官方推荐的代替方案
后来我又去实现了他文档放弃win10 所推荐的dx方案
IDXGIOutput 发现并不能截图dwm
后续...
amd 方案
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