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[原创] 第二部分比赛[第七回]CrackMe破解提交
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发表于: 2009-9-15 11:12
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今天试用了一下新工具getvbres 0.9，打开这个CrackMe,最后看到“注册成功”，地址为28B8
OD载入程序，直接查找二进制串“B8 28”到了00404BFC，
往上看，00404BDF，有个跳转，试着在00404B0C处下断，断下了，改00404BDF处的74 45为74 00，OK了！
00404BCF . 8B75 08 MOV ESI,DWORD PTR SS:[EBP+8]
00404BD2 > 8D4D 84 LEA ECX,DWORD PTR SS:[EBP-7C]
00404BD5 . 51 PUSH ECX
00404BD6 . FF15 58104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaBoolVarNull>] ; MSVBVM60.__vbaBoolVarNull
00404BDC . 66:85C0 TEST AX,AX
00404BDF . 74 45 JE SHORT Crackme2.00404C26 ：改这里为74 00 JE SHORT Crackme2.00404BE1
00404BE1 . 8B16 MOV EDX,DWORD PTR DS:[ESI]
00404BE3 . 56 PUSH ESI
00404BE4 . FF92 18030000 CALL DWORD PTR DS:[EDX+318]
00404BEA . 50 PUSH EAX
00404BEB . 8D85 30FFFFFF LEA EAX,DWORD PTR SS:[EBP-D0]
00404BF1 . 50 PUSH EAX
00404BF2 . FF15 48104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaObjSet>] ; MSVBVM60.__vbaObjSet
00404BF8 . 8BF0 MOV ESI,EAX
00404BFA . 8B0E MOV ECX,DWORD PTR DS:[ESI]
00404BFC . 68 B8284000 PUSH Crackme2.004028B8 :查找后直接到了这里，向上看
00404C01 . 56 PUSH ESI
00404C02 . FF51 54 CALL DWORD PTR DS:[ECX+54]
00404C05 . DBE2 FCLEX
00404C07 . 85C0 TEST EAX,EAX
00404C09 . 7D 0F JGE SHORT Crackme2.00404C1A
00404C0B . 6A 54 PUSH 54
00404C0D . 68 8C274000 PUSH Crackme2.0040278C
Crackme2009_xx.rar
OD载入程序，直接查找二进制串“B8 28”到了00404BFC，
往上看，00404BDF，有个跳转，试着在00404B0C处下断，断下了，改00404BDF处的74 45为74 00，OK了！00404BCF . 8B75 08 MOV ESI,DWORD PTR SS:[EBP+8]
00404BD2 > 8D4D 84 LEA ECX,DWORD PTR SS:[EBP-7C]
00404BD5 . 51 PUSH ECX
00404BD6 . FF15 58104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaBoolVarNull>] ; MSVBVM60.__vbaBoolVarNull
00404BDC . 66:85C0 TEST AX,AX
00404BDF . 74 45 JE SHORT Crackme2.00404C26 ：改这里为74 00 JE SHORT Crackme2.00404BE1
00404BE1 . 8B16 MOV EDX,DWORD PTR DS:[ESI]
00404BE3 . 56 PUSH ESI
00404BE4 . FF92 18030000 CALL DWORD PTR DS:[EDX+318]
00404BEA . 50 PUSH EAX
00404BEB . 8D85 30FFFFFF LEA EAX,DWORD PTR SS:[EBP-D0]
00404BF1 . 50 PUSH EAX
00404BF2 . FF15 48104000 CALL DWORD PTR DS:[<&MSVBVM60.__vbaObjSet>] ; MSVBVM60.__vbaObjSet
00404BF8 . 8BF0 MOV ESI,EAX
00404BFA . 8B0E MOV ECX,DWORD PTR DS:[ESI]
00404BFC . 68 B8284000 PUSH Crackme2.004028B8 :查找后直接到了这里，向上看
00404C01 . 56 PUSH ESI
00404C02 . FF51 54 CALL DWORD PTR DS:[ECX+54]
00404C05 . DBE2 FCLEX
00404C07 . 85C0 TEST EAX,EAX
00404C09 . 7D 0F JGE SHORT Crackme2.00404C1A
00404C0B . 6A 54 PUSH 54
00404C0D . 68 8C274000 PUSH Crackme2.0040278C
Crackme2009_xx.rar
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