标 题: 【原创】取巧脱tElock 1.0 (private) -> tE!壳
作 者: swordkok
时 间: 2011-05-16,01:50:00
链 接: http://bbs.pediy.com/showthread.php?p=959225
【文章标题】: 取巧脱tElock 1.0 (private) -> tE!壳
【文章作者】: swordkok
【作者邮箱】:
【软件名称】: REDitorII
【下载地址】: http://u.115.com/file/clcunmn7#
【加壳方式】: tElock 1.0 (private) -> tE!
【保护方式】:
【编写语言】: Delphi??
【使用工具】: OD,IREC,LORDPE
【作者声明】: 只是感兴趣，没有其他目的。失误之处敬请诸位大侠赐教!
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【详细过程】
PEID插壳，tElock 1.0 (private) -> tE!
OD忽略除了INT3之外的所有异常,IsDebug去掉Od标志
用OD载入，停在
00A7509D >^\E9 5EDFFFFF jmp REDitorI.00A73000
00A750A2 0000 add byte ptr ds:[eax],al
00A750A4 000B add byte ptr ds:[ebx],cl
00A750A6 D9BB B6E55067 fstcw word ptr ds:[ebx+0x6750E5B6]
mov ebx,edx
shr ebx,10
mov eax,dword ptr ds:[esi]
00A74558 8BDA mov ebx,edx
00A7455A C1EB 10 shr ebx,0x10
00A7455D 8B06 mov eax,dword ptr ds:[esi]
00A7455F 85C0 test eax,eax
00A74561 74 70 je short REDitorI.00A745D3
00A74563 8B4E 04 mov ecx,dword ptr ds:[esi+0x4]
00A74566 83E9 08 sub ecx,0x8
00A74569 D1E9 shr ecx,1
00A7456B 8BBD 63374000 mov edi,dword ptr ss:[ebp+0x403763]
00A74571 03F8 add edi,eax
00A74573 83C6 08 add esi,0x8
00A74576 0FB706 movzx eax,word ptr ds:[esi]
00A74579 C1C8 0C ror eax,0xC
00A7457C FEC8 dec al
00A7457E 78 4C js short REDitorI.00A745CC
00A74580 74 0E je short REDitorI.00A74590
00A74582 FEC8 dec al
00A74584 74 13 je short REDitorI.00A74599
00A74586 FEC8 dec al
00A74588 74 3C je short REDitorI.00A745C6
00A7458A FEC8 dec al
00A7458C 74 14 je short REDitorI.00A745A2
00A7458E EB 3C jmp short REDitorI.00A745CC
00A74590 C1E8 14 shr eax,0x14
00A74593 66:011C38 add word ptr ds:[eax+edi],bx
00A74597 EB 33 jmp short REDitorI.00A745CC
00A74599 C1E8 14 shr eax,0x14
00A7459C 66:011438 add word ptr ds:[eax+edi],dx
00A745A0 EB 2A jmp short REDitorI.00A745CC
00A745A2 52 push edx
00A745A3 C1E8 14 shr eax,0x14
00A745A6 8BD8 mov ebx,eax
00A745A8 C1E0 10 shl eax,0x10
00A745AB 66:8B16 mov dx,word ptr ds:[esi]
00A745AE 66:81E2 FF0F and dx,0xFFF
00A745B3 66:8BC2 mov ax,dx
00A745B6 5A pop edx
00A745B7 8D8402 00800000 lea eax,dword ptr ds:[edx+eax+0x8000]
00A745BE 89043B mov dword ptr ds:[ebx+edi],eax
00A745C1 46 inc esi
00A745C2 46 inc esi
00A745C3 49 dec ecx
00A745C4 EB 06 jmp short REDitorI.00A745CC
00A745C6 C1E8 14 shr eax,0x14
00A745C9 011438 add dword ptr ds:[eax+edi],edx
00A745CC 46 inc esi
00A745CD 46 inc esi
00A745CE 49 dec ecx
00A745CF ^ 7F A5 jg short REDitorI.00A74576
00A745D1 ^ EB 8A jmp short REDitorI.00A7455D
00A745D3 8B95 63374000 mov edx,dword ptr ss:[ebp+0x403763]
00A745D9 8BB5 53374000 mov esi,dword ptr ss:[ebp+0x403753] //IAT地址
00A745DF 85F6 test esi,esi
00A745E1 0F84 2F040000 je REDitorI.00A74A16 //magic jmp
00A74A16 8BBD 5B374000 mov edi,dword ptr ss:[ebp+0x40375B]
00A74A1C 85FF test edi,edi
00A74A1E EB 03 jmp short REDitorI.00A74A23
00A74A20 0100 add dword ptr ds:[eax],eax
00A74A22 EB 74 jmp short REDitorI.00A74A98
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