Obsidium Olly Scripts v3

风吹屁屁凉

By CodeCracker

Attached new script for Obsidium, fixed ObsidiumIAT for dlls files;
Finding OEP for dll files is different: I've break hardware on execute to Rva 1000 - that address was called from OEP; I've returned from that until I found the real OEP.
Obsidium CodeDecrypt.txt - Olly script for decrypting code section.

ObsidiumIAT_v3.txt

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/* =============================================================================  Obsidium IAT fixer by CodeExplorer =============================================================================  When you use this Olly script you should be at OEP ============================================================================= */     var addr var pointer var thunk var temp var ImportTableAddress var ImportTableEnd var ImportSize var CurrentPos var OLD_EIP var OLD_ESP var varEax var varEbx var varEcx var varEdx var varEsi var varEdi var varEsp var varEbp var varEip var WhereAre var MainModule var CodeBase var PossibleApi var SearchWhat var BufferKeep var CurrentFailedCount var FailedOn var AdrsTest var CurrentPosBak var KernelBase   mov OLD_EIP,eip  // backup EIP mov OLD_ESP,esp  // backup ESP mov varEax,eax mov varEbx,ebx mov varEcx,ecx mov varEdx,edx mov varEsi,esi mov varEdi,edi mov varEsp,esp mov varEbp,ebp   GMA "KERNEL32", MODULEBASE mov KernelBase, $RESULT   mov CurrentFailedCount, 0 alloc 30 mov BufferKeep, $RESULT   GMI eip, MODULEBASE cmp $RESULT,0 je SCRIPT_FINISHED   mov addr,$RESULT // 401000  // code base mov MainModule,$RESULT GMEMI addr, MEMORYSIZE add addr,$RESULT mov CodeBase, addr   LABEL_01: find addr,#FF??????4000#     // call/jmp dword [...] cmp $RESULT,0 jne FoundSomething find addr,#FF15#     // call dword [...] cmp $RESULT,0 jne FoundSomething find addr,#FF25#     // jmp dword [...] cmp $RESULT,0 jne FoundSomething   jmp SCRIPT_FINISHED   FoundSomething: mov addr,$RESULT   cmp [addr+1], 15, 1  // call dword [...] je IS_OK   cmp [addr+1], 25, 1  // jmp dword [...] je IS_OK jmp NextAddress   IS_OK: mov addr,$RESULT mov pointer,$RESULT add pointer,2 mov pointer,[pointer] mov thunk,[pointer]   GMI thunk, MODULEBASE // After this $RESULT is the address to the codebase of the module to which eip belongs cmp $RESULT, 0 jz GetImportTable   NextAddress: add addr,6 jmp LABEL_01   GetImportTable: mov ImportTableAddress, pointer BigLoop: cmp [ImportTableAddress-8], 0, 4 jnz CheckNextOneIT   cmp [ImportTableAddress-4], 0, 4 jz FoundProperAddress   CheckNextOneIT: sub ImportTableAddress, 4 jmp BigLoop   FoundProperAddress: log ImportTableAddress mov ImportTableEnd, ImportTableAddress   IAT_END_LOOP: cmp [ImportTableEnd+4], 0, 4 jnz CheckNextIAT_END   cmp [ImportTableEnd+8], 0, 4 jz FoundIatEND   GMI [ImportTableEnd+8], MODULEBASE // After this $RESULT is the address to the codebase of the module to which eip belongs cmp $RESULT, 0  // may be some import address after belonging to a module this means we didn't reached the end jz CheckNextIAT_END  // if address after don't belong to a module we didn't reached the end   cmp $RESULT, MainModule // 400000  // if address belong to main module we reached the end jz FoundIatEND   CheckNextIAT_END: add ImportTableEnd, 4 jmp IAT_END_LOOP   FoundIatEND: add ImportTableEnd, 4 log ImportTableEnd mov ImportSize, ImportTableEnd sub ImportSize, ImportTableAddress log ImportSize   mov CurrentPos, ImportTableAddress   ThunkSearchLoop: cmp [CurrentPos], 0 jz NextThunkAddress   GMI [CurrentPos], MODULEBASE // After this $RESULT is the address to the codebase of the module to which eip belongs cmp $RESULT, 0  // if the thunk already belong to a module jnz NextThunkAddress   //log CurrentPos mov [BufferKeep], CurrentPos Readstr [BufferKeep], 4 mov SearchWhat, $RESULT buf SearchWhat //log $RESULT find CodeBase,$RESULT //log $RESULT cmp $RESULT, 0  // if no reference to that dword jz TryResolveStrangeThunk   mov CurrentFailedCount, 0 call TraceAndFixApi   NextThunkAddress: add CurrentPos, 4 cmp CurrentPos, ImportTableEnd jnz ThunkSearchLoop jmp SCRIPT_FINISHED   TryResolveStrangeThunk: mov PreviousValue, CurrentPos sub PreviousValue, 4 mov PreviousValue, [PreviousValue]   mov NextValue, CurrentPos add NextValue, 4   cmp PreviousValue, 0 jz NextThunkAddress GMI PreviousValue, MODULEBASE cmp $RESULT, 0  // if the thunk don't belong to a module jz NextThunkAddress mov CModuleBase, $RESULT cmp CModuleBase,KernelBase jnz NextThunkAddress   // Now try to resolve next thunk: mov CurrentPosBak, CurrentPos add CurrentPos, 4 cmp [CurrentPos], 0 jz NextThunkAddress   GMI [CurrentPos], MODULEBASE // After this $RESULT is the address to the codebase of the module to which eip belongs cmp $RESULT, 0  // if the thunk already belong to a module jnz NextThunkAddress   //log CurrentPos mov [BufferKeep], CurrentPos Readstr [BufferKeep], 4 mov SearchWhat, $RESULT buf SearchWhat //log $RESULT find CodeBase,$RESULT //log $RESULT cmp $RESULT, 0  // if no reference to that dword jz NextThunkAddress   mov CurrentFailedCount, 0 call TraceAndFixApi   mov NextValue, [NextValue] cmp NextValue, 0 jz NextThunkAddress GMI NextValue, MODULEBASE cmp $RESULT, 0  // if the thunk don't belong to a module jz NextThunkAddress cmp CModuleBase, $RESULT jnz NextThunkAddress   log "We have something here!" mov CurrentPos, CurrentPosBak mov CurrentFailedCount, 0 call TraceAndFixApi jmp NextThunkAddress   //jmp NextThunkAddress //FailedOnThatThunk: //inc CurrentFailedCount //mov FailedOn,CurrentPos //log FailedOn     TraceAndFixApi:  // input CurrentPos - resolved import will be writed at [CurrentPos] mov eip,[CurrentPos] OK_01: sti  // step in   cmp [eip],93FF, 2         // FF93 94000000   CALL    DWORD PTR DS:[EBX+0x94] jz FinnalyOK   mov temp,[eip] and temp,0FFFFFF cmp temp,0476FF         // FF7604  PUSH    DWORD PTR DS:[ESI+0x4] jnz OK_01   OK_02: sto  // step over   cmp [eip],93FF, 2         // FF93 94000000   CALL    DWORD PTR DS:[EBX+0x94] jz FinnalyOK   mov temp,[eip] and temp,0FFFFFF cmp temp,0476FF         // FF7604  PUSH    DWORD PTR DS:[ESI+0x4] jnz OK_02   OK_03: sto  // step over cmp [eip],93FF, 2         // FF93 94000000   CALL    DWORD PTR DS:[EBX+0x94] jnz OK_03   FinnalyOK: mov PossibleApi, [esp], 4 GMI PossibleApi, MODULEBASE cmp $RESULT,0  // if has no module base step over jz PossibleStepOver cmp $RESULT,MainModule  // if module is main module step over jz PossibleStepOver cmp $RESULT,PossibleApi  // if a module base step over jz PossibleStepOver mov eax, PossibleApi ; api address is on stack - dword ptr [esp] jmp SetApiAddress   PossibleStepOver: cmp PossibleApi,0  // if dword ptr [esp] is 0 jz OK_01  // jump back to search   log PossibleApi sto  // step over mov PossibleApi,eax   SetApiAddress: mov WhereAre,eip log WhereAre log CurrentPos   mov [CurrentPos],PossibleApi //log eax   ret   SCRIPT_FINISHED: mov eax,varEax mov ebx,varEbx mov ecx,varEcx mov edx,varEdx mov esi,varEsi mov edi,varEdi mov esp,varEsp mov ebp,varEbp   mov eip, OLD_EIP // restore eip mov esp, OLD_ESP  // restore ESP msg "Script finished!"

Obsidium CodeDecrypt.txt

[Asm] 纯文本查看 复制代码

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var OLD_EIP var OLD_ESP var varEax var varEbx var varEcx var varEdx var varEsi var varEdi var varEsp var varEbp var varEip   var addr var CodeBase var FoundPlace var ReturnAddress var SecondPlace var FoundCount var ValueKept   var oldEsp var OldEip mov OLD_EIP,eip  // backup EIP mov OLD_ESP,esp  // backup ESP mov varEax,eax mov varEbx,ebx mov varEcx,ecx mov varEdx,edx mov varEsi,esi mov varEdi,edi mov varEsp,esp mov varEbp,ebp     GMI eip, MODULEBASE cmp $RESULT,0 je SCRIPT_FINISHED   mov addr,$RESULT // 401000  // code base mov MainModule,$RESULT GMEMI addr, MEMORYSIZE add addr,$RESULT mov CodeBase, addr //  6D2B44EE    68 57000000     PUSH 0x57 // 6D2B44F3    FF15 A0E32B6D   CALL NEAR DWORD PTR DS:[0x6D2BE3A0]   SearchLoop: find addr,#68??0000??FF15# cmp $RESULT,0 je SCRIPT_FINISHED mov FoundPlace, $RESULT //bp FoundPlace mov addr, FoundPlace inc addr   mov ValueKept, FoundPlace add ValueKept, 07 mov ValueKept, [ValueKept] mov ValueKept, [ValueKept]   GMI ValueKept, MODULEBASE cmp $RESULT,MainModule jz SearchLoop cmp $RESULT,0 jnz SearchLoop   mov ReturnAddress, FoundPlace add ReturnAddress, 0B   bphws ReturnAddress, "x" //BPMC //bprm ReturnAddress, 1   pusha mov oldEsp, esp mov OldEip, eip mov eip, FoundPlace erun   ReturnAddressOk: bphwc mov esp, oldEsp mov eip, OldEip popa   fill FoundPlace, 0B, 90 // NOP 0Bh bytes   find addr,#68??0000??FF15# cmp $RESULT,0 je SCRIPT_FINISHED mov SecondPlace, $RESULT   mov ValueKept, SecondPlace add ValueKept, 07 mov ValueKept, [ValueKept] mov ValueKept, [ValueKept] GMI ValueKept, MODULEBASE cmp $RESULT,MainModule jz SearchLoop cmp $RESULT,0 jnz SearchLoop   fill SecondPlace, 0B, 90 // NOP 0Bh bytes   mov addr, SecondPlace inc addr   inc FoundCount   jmp SearchLoop     SCRIPT_FINISHED: mov eax,varEax mov ebx,varEbx mov ecx,varEcx mov edx,varEdx mov esi,varEsi mov edi,varEdi mov esp,varEsp mov ebp,varEbp   mov eip, OLD_EIP // restore eip mov esp, OLD_ESP  // restore ESP msg "Script finished!"

pizazzboy

感谢大佬的精彩分享。

losungjane

虽然看不懂，但不明觉厉，感谢分享。

may5422

用什么软件才能编辑

kookook

大佬的帖子一直这样充满神秘感

tf0721

感谢大佬的精彩分享。

yiluoen0502

感谢大佬的精彩分享，学习了

guohuanxian

没有看明白，这是做什么的

bscjc

代码，挺好

123LOLO

感谢分享。