作者: KernelKiller
目标: 分析Themida如何显示Logo窗口
系统平台: Windows 2000 Server
软件 : Themida Demo 1.0.0.5 driver version
日期 : 2006-05-01
声明:
本文只是技术探讨。
为了不浪费大家宝贵时间,直接进入正题,省略加壳后分析的Logo代码,直接来到主程序内代码。
//创建一个线程 显示Logo窗口
___:0057C98F Themida_Show_Logo proc near ; CODE XREF: ___:0057B145p
___:0057C98F ; ___:0057B2A5p
___:0057C98F ; DATA XREF: ...
___:0057C98F mov ss:dword_57C687[ebp], esi
___:0057C995 lea eax, Themida_Show_Logo[ebp]
___:0057C99B push eax
___:0057C99C push 0
___:0057C99E push 0
___:0057C9A0 lea eax, Themida_Show_Logo_Fun[ebp]
___:0057C9A6 push eax
___:0057C9A7 push 0
___:0057C9A9 push 0
___:0057C9AB call ss:Themida_Call_CreateThread[ebp]
___:0057C9B1 lea ebx, loc_580539[ebp]
___:0057C9B7 call ebx
___:0057C9B9 push 28h
___:0057C9BB call ss:Themida_Call_Sleep[ebp]
___:0057C9C1 retn
___:0057C9C1 Themida_Show_Logo endp
//主显示Logo功能.
___:0057C9C2 Themida_Show_Logo_Fun: ; DATA XREF: Themida_Show_Logo+11r
___:0057C9C2 call $+5
___:0057C9C7 pop ebp
___:0057C9C8 sub ebp, 57C9C7h
___:0057C9CE inc ss:dword_58B7BC[ebp]
___:0057C9D4 mov esi, ss:dword_57C687[ebp]
___:0057C9DA push ebp
___:0057C9DB mov ebp, esp
___:0057C9DD add esp, 0FFFFFFB4h
___:0057C9E0 call $+5
___:0057C9E5
___:0057C9E5 loc_57C9E5: ; DATA XREF: ___:0057C9E6o
___:0057C9E5 pop edx
___:0057C9E6 sub edx, offset loc_57C9E5
___:0057C9EC mov dword_57B5B9[edx], esi
___:0057C9F2 call sub_57CD95
___:0057C9F7 lea ebx, dword_57B5CF[edx]
___:0057C9FD mov eax, [ebx+4]
___:0057CA00 mov eax, [ebx+8]
___:0057CA03 mov dword ptr [ebp-30h], 30h
___:0057CA0A mov dword ptr [ebp-2Ch], 3
___:0057CA11 lea eax, WindowsProc[edx]
___:0057CA17 mov [ebp-28h], eax
___:0057CA1A mov dword ptr [ebp-24h], 0
___:0057CA21 mov dword ptr [ebp-20h], 0
___:0057CA28 push dword_58A78C[edx]
___:0057CA2E pop dword ptr [ebp-1Ch]
___:0057CA31 mov dword ptr [ebp-10h], 6
___:0057CA38 mov dword ptr [ebp-0Ch], 0
___:0057CA3F lea eax, unk_57B548[edx]
___:0057CA45 mov [ebp-8], eax
___:0057CA48 mov dword ptr [ebp-18h], 0
___:0057CA4F mov dword ptr [ebp-4], 0
___:0057CA56 push edx
___:0057CA57 push 7F89h
___:0057CA5C push 0
___:0057CA5E call dword_57B59D[edx]
___:0057CA64 pop edx
___:0057CA65 mov [ebp-14h], eax
___:0057CA68 push edx
___:0057CA69 lea eax, [ebp-30h]
___:0057CA6C push eax
___:0057CA6D call dword_57B559[edx]
___:0057CA73 pop edx
___:0057CA74 push edx
___:0057CA75 lea ebx, dword_57B5CF[edx]
___:0057CA7B push 0
___:0057CA7D push dword_58A78C[edx]
___:0057CA83 push 0
___:0057CA85 push 0
___:0057CA87 push dword ptr [ebx+8]
___:0057CA8A push dword ptr [ebx+4]
___:0057CA8D push 80000000h
___:0057CA92 push 80000000h
___:0057CA97 push 80000000h
___:0057CA9C push 0
___:0057CA9E lea eax, unk_57B548[edx]
___:0057CAA4 push eax
___:0057CAA5 push 0
___:0057CAA7 call Themida_Call_CreateWindows[edx]
___:0057CAAD pop edx
___:0057CAAE mov hLogoWindows[edx], eax
___:0057CAB4 push edx
___:0057CAB5 push hLogoWindows[edx]
___:0057CABB call dword_57B555[edx]
___:0057CAC1 pop edx
___:0057CAC2 mov dword_57B5BD[edx], eax
___:0057CAC8 push dword_57B5BD[edx]
___:0057CACE call sub_57CDB8
___:0057CAD3 push edx
___:0057CAD4 push 1
___:0057CAD6 push hLogoWindows[edx]
___:0057CADC call Themida_Call_ShowWindows[edx]
___:0057CAE2 pop edx
___:0057CAE3 push edx
___:0057CAE4 push hLogoWindows[edx]
___:0057CAEA call Themida_Call_UpdateWindow[edx]
___:0057CAF0 pop edx
___:0057CAF1
___:0057CAF1 loc_57CAF1: ; CODE XREF: ___:0057CB1Fj
___:0057CAF1 push edx
___:0057CAF2 push 0
___:0057CAF4 push 0
___:0057CAF6 push 0
___:0057CAF8 lea eax, [ebp-4Ch]
___:0057CAFB push eax
___:0057CAFC call dword_57B569[edx]
___:0057CB02 pop edx
___:0057CB03 or eax, eax
___:0057CB05 jz short loc_57CB21
___:0057CB07 push edx
___:0057CB08 lea eax, [ebp-4Ch]
___:0057CB0B push eax
___:0057CB0C call dword_57B56D[edx]
___:0057CB12 pop edx
___:0057CB13 push edx
___:0057CB14 lea eax, [ebp-4Ch]
___:0057CB17 push eax
___:0057CB18 call dword_57B571[edx]
___:0057CB1E pop edx
___:0057CB1F jmp short loc_57CAF1
___:0057CB21 ; 哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪?
___:0057CB21
___:0057CB21 loc_57CB21: ; CODE XREF: ___:0057CB05j
___:0057CB21 push edx
___:0057CB22 push dword_57B5BD[edx]
___:0057CB28 push hLogoWindows[edx]
___:0057CB2E call dword_57B575[edx]
___:0057CB34 pop edx
___:0057CB35 mov ebp, edx
___:0057CB37 dec dword_58B7BC[edx]
___:0057CB3D mov byte ptr dword_58C4EC[edx], 45h
___:0057CB44 push 0DA6038C2h
___:0057CB49 push dword_58AA90[edx]
___:0057CB4F lea eax, loc_57FAE9[edx]
___:0057CB55 call eax
___:0057CB57 push 0
___:0057CB59 call eax
___:0057CB5B
___:0057CB5B WindowsProc: ; DATA XREF: ___:0057CA11r
___:0057CB5B push ebp
___:0057CB5C mov ebp, esp
___:0057CB5E add esp, 0FFFFFFB4h
___:0057CB61 push edx
___:0057CB62 call $+5
___:0057CB67
___:0057CB67 loc_57CB67: ; DATA XREF: ___:0057CB68o
___:0057CB67 pop edx
___:0057CB68 sub edx, offset loc_57CB67
___:0057CB6E cmp dword ptr [ebp+0Ch], 2
___:0057CB72 jnz short Local_1
___:0057CB74 push edx
___:0057CB75 mov Themida_Exit_Logo_Flag[edx], 1
___:0057CB7F push 0
___:0057CB81 call dword_57B579[edx]
___:0057CB87 pop edx
___:0057CB88 jmp Exit
___:0057CB8D ; 哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪?
___:0057CB8D
___:0057CB8D Local_1: ; CODE XREF: ___:0057CB72j
___:0057CB8D cmp dword ptr [ebp+0Ch], WM_LBUTTONDOWN
___:0057CB94 jnz short Local_2 //鼠标按下
___:0057CB96 mov Themida_Exit_Logo_Flag[edx], 1
___:0057CBA0 jmp Exit
___:0057CBA5 ; 哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪?
___:0057CBA5
___:0057CBA5 Local_2: ; CODE XREF: ___:0057CB94j
___:0057CBA5 cmp dword ptr [ebp+0Ch], 1
___:0057CBA9 jnz short Local_3
___:0057CBAB push edx
___:0057CBAC lea eax, [ebp-3Ch]
___:0057CBAF push eax
___:0057CBB0 push dword ptr [ebp+8]
___:0057CBB3 call dword_57B57D[edx]
___:0057CBB9 pop edx
___:0057CBBA push edx
___:0057CBBB call dword_57B581[edx]
___:0057CBC1 pop edx
___:0057CBC2 mov ecx, eax
___:0057CBC4 push edx
___:0057CBC5 lea eax, [ebp-4Ch]
___:0057CBC8 push eax
___:0057CBC9 push ecx
___:0057CBCA call dword_57B57D[edx]
___:0057CBD0 pop edx
___:0057CBD1 push edx
___:0057CBD2 push 0
___:0057CBD4 mov eax, [ebp-30h]
___:0057CBD7 sub eax, [ebp-38h]
___:0057CBDA mov [ebp-28h], eax
___:0057CBDD push eax
___:0057CBDE mov eax, [ebp-34h]
___:0057CBE1 sub eax, [ebp-3Ch]
___:0057CBE4 mov [ebp-2Ch], eax
___:0057CBE7 push eax
___:0057CBE8 mov eax, [ebp-40h]
___:0057CBEB sub eax, [ebp-28h]
___:0057CBEE shr eax, 1
___:0057CBF0 push eax
___:0057CBF1 mov eax, [ebp-44h]
___:0057CBF4 sub eax, [ebp-2Ch]
___:0057CBF7 shr eax, 1
___:0057CBF9 push eax
___:0057CBFA push dword ptr [ebp+8]
___:0057CBFD call dword_57B585[edx]
___:0057CC03 pop edx
___:0057CC04 jmp short Exit
___:0057CC06 ; 哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪?
___:0057CC06
___:0057CC06 Local_3: ; CODE XREF: ___:0057CBA9j
___:0057CC06 cmp dword ptr [ebp+0Ch], 0Fh
___:0057CC0A jnz short RetSysMessage
___:0057CC0C push edx
___:0057CC0D lea eax, dword_57C643[edx]
___:0057CC13 push eax
___:0057CC14 push dword ptr [ebp+8]
___:0057CC17 call dword_57B589[edx]
___:0057CC1D pop edx
___:0057CC1E push edx
___:0057CC1F push 0CC0020h
___:0057CC24 push 0
___:0057CC26 push 0
___:0057CC28 push dword_57B60B[edx]
___:0057CC2E push dword_57B5FB[edx]
___:0057CC34 push dword_57B5F7[edx]
___:0057CC3A push 0
___:0057CC3C push 0
___:0057CC3E push dword_57B5BD[edx]
___:0057CC44 call dword_57B58D[edx]
___:0057CC4A pop edx
___:0057CC4B push edx
___:0057CC4C lea eax, dword_57C643[edx]
___:0057CC52 push eax
___:0057CC53 push dword ptr [ebp+8]
___:0057CC56 call dword_57B591[edx]
___:0057CC5C pop edx
___:0057CC5D jmp short Exit
___:0057CC5F ; 哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪?
___:0057CC5F
___:0057CC5F RetSysMessage: ; CODE XREF: ___:0057CC0Aj
___:0057CC5F push edx
___:0057CC60 push dword ptr [ebp+14h]
___:0057CC63 push dword ptr [ebp+10h]
___:0057CC66 push dword ptr [ebp+0Ch]
___:0057CC69 push dword ptr [ebp+8]
___:0057CC6C call dword_57B595[edx]
___:0057CC72 pop edx
___:0057CC73 pop edx
___:0057CC74 leave
___:0057CC75 retn 10h
___:0057CC78 ; 哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪?
___:0057CC78
___:0057CC78 Exit: ; CODE XREF: ___:0057CB88j
___:0057CC78 ; ___:0057CBA0j ...
___:0057CC78 pop edx
___:0057CC79 xor eax, eax
___:0057CC7B leave
___:0057CC7C retn 10h
//等待退出Logo
___:0057B3BD loc_57B3BD: ; DATA XREF: sub_57B473+Do
___:0057B3BD ; sub_57B473+56o ...
___:0057B3BD mov eax, 0
___:0057B3C2 push eax
___:0057B3C3 cmp eax, 2
___:0057B3C6 jnz short loc_57B3DB
___:0057B3C8 jmp short loc_57B3D2
___:0057B3CA ; 哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪哪?
___:0057B3CA
___:0057B3CA Themida_Loop_Wati_Logo_Exit: ; CODE XREF: ___:0057B3D9j
___:0057B3CA push 50
___:0057B3CC call ss:Themida_Call_Sleep[ebp]
___:0057B3D2
___:0057B3D2 loc_57B3D2: ; CODE XREF: ___:0057B3C8j
___:0057B3D2 cmp ss:Themida_Exit_Logo_Flag[ebp], 0
___:0057B3D9 jz short Themida_Loop_Wati_Logo_Exit
显示Logo过程是这样: 等待->创建Logo->等待用户鼠标点击->结束Logo->退出等待->继续...
crack
code->call Themida_Show_Logo
crack->
nop
nop
nop
///////////////////////////////
code->
Themida_Loop_Wati_Logo_Exit:
push 50
call ss:Themida_Call_Sleep[ebp]
loc_57B3D2:
cmp ss:Themida_Exit_Logo_Flag[ebp], 0
jz short Themida_Loop_Wati_Logo_Exit
crack->
nop
...
全文完.
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