mirror of
https://github.com/HIllya51/LunaHook.git
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279 lines
10 KiB
C++
279 lines
10 KiB
C++
#include"AOS.h"
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/**
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* jichi 4/1/2014: Insert AOS hook
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* About 彩斤<E5BDA9>: http://erogetrailers.com/brand/165
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* About AOS: http://asmodean.reverse.net/pages/exaos.html
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*
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* Sample games:
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*
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* [140228] [Sugar Pot] 恋する少女と想<E381A8>キセキ V1.00 H-CODE by <20>쿿
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* - /HB8*0@3C2F0:恋する少女と想<E381A8>キセキ.exe
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* - /HBC*0@3C190:恋する少女と想<E381A8>キセキ.exe
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*
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* [120224] [Sugar Pot] ヂ<>モノツキ
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*
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* LiLiM games
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*
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* /HB8*0@3C2F0:恋する少女と想<E381A8>キセ
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* - addr: 246512 = 0x3c2f0
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* - length_offset: 1
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* - module: 1814017450
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* - off: 8
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* - type: 72 = 0x48
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*
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* 00e3c2ed cc int3
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* 00e3c2ee cc int3
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* 00e3c2ef cc int3
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* 00e3c2f0 /$ 51 push ecx ; jichi: hook here, function starts
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* 00e3c2f1 |. a1 0c64eb00 mov eax,dword ptr ds:[0xeb640c]
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* 00e3c2f6 |. 8b0d 7846eb00 mov ecx,dword ptr ds:[0xeb4678]
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* 00e3c2fc |. 53 push ebx
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* 00e3c2fd |. 55 push ebp
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* 00e3c2fe |. 8b6c24 10 mov ebp,dword ptr ss:[esp+0x10]
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* 00e3c302 |. 56 push esi
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* 00e3c303 |. 8b35 c446eb00 mov esi,dword ptr ds:[0xeb46c4]
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* 00e3c309 |. 57 push edi
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* 00e3c30a |. 0fb63d c746eb00 movzx edi,byte ptr ds:[0xeb46c7]
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* 00e3c311 |. 81e6 ffffff00 and esi,0xffffff
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* 00e3c317 |. 894424 18 mov dword ptr ss:[esp+0x18],eax
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* 00e3c31b |. 85ff test edi,edi
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* 00e3c31d |. 74 6b je short 恋する<E38199>00e3c38a
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* 00e3c31f |. 8bd9 mov ebx,ecx
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* 00e3c321 |. 85db test ebx,ebx
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* 00e3c323 |. 74 17 je short 恋する<E38199>00e3c33c
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* 00e3c325 |. 8b4b 28 mov ecx,dword ptr ds:[ebx+0x28]
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* 00e3c328 |. 56 push esi ; /color
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* 00e3c329 |. 51 push ecx ; |hdc
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* 00e3c32a |. ff15 3c40e800 call dword ptr ds:[<&gdi32.SetTextColor>>; \settextcolor
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* 00e3c330 |. 89b3 c8000000 mov dword ptr ds:[ebx+0xc8],esi
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* 00e3c336 |. 8b0d 7846eb00 mov ecx,dword ptr ds:[0xeb4678]
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* 00e3c33c |> 0fbf55 1c movsx edx,word ptr ss:[ebp+0x1c]
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* 00e3c340 |. 0fbf45 0a movsx eax,word ptr ss:[ebp+0xa]
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* 00e3c344 |. 0fbf75 1a movsx esi,word ptr ss:[ebp+0x1a]
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* 00e3c348 |. 03d7 add edx,edi
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* 00e3c34a |. 03c2 add eax,edx
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* 00e3c34c |. 0fbf55 08 movsx edx,word ptr ss:[ebp+0x8]
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* 00e3c350 |. 03f7 add esi,edi
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* 00e3c352 |. 03d6 add edx,esi
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* 00e3c354 |. 85c9 test ecx,ecx
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* 00e3c356 |. 74 32 je short 恋する<E38199>00e3c38a
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*/
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bool InsertAOS1Hook()
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{
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// jichi 4/2/2014: The starting of this function is different from ヂ<>モノツキ
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// So, use a pattern in the middle of the function instead.
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//
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//const BYTE bytes[] = {
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// 0x51, // 00e3c2f0 /$ 51 push ecx ; jichi: hook here, function begins
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// 0xa1, 0x0c,0x64,0xeb,0x00, // 00e3c2f1 |. a1 0c64eb00 mov eax,dword ptr ds:[0xeb640c]
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// 0x8b,0x0d, 0x78,0x46,0xeb,0x00, // 00e3c2f6 |. 8b0d 7846eb00 mov ecx,dword ptr ds:[0xeb4678]
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// 0x53, // 00e3c2fc |. 53 push ebx
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// 0x55, // 00e3c2fd |. 55 push ebp
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// 0x8b,0x6c,0x24, 0x10, // 00e3c2fe |. 8b6c24 10 mov ebp,dword ptr ss:[esp+0x10]
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// 0x56, // 00e3c302 |. 56 push esi
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// 0x8b,0x35, 0xc4,0x46,0xeb,0x00, // 00e3c303 |. 8b35 c446eb00 mov esi,dword ptr ds:[0xeb46c4]
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// 0x57, // 00e3c309 |. 57 push edi
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// 0x0f,0xb6,0x3d, 0xc7,0x46,0xeb,0x00, // 00e3c30a |. 0fb63d c746eb00 movzx edi,byte ptr ds:[0xeb46c7]
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// 0x81,0xe6, 0xff,0xff,0xff,0x00 // 00e3c311 |. 81e6 ffffff00 and esi,0xffffff
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//};
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//enum { addr_offset = 0 };
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const BYTE bytes[] = {
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0x0f,0xbf,0x55, 0x1c, // 00e3c33c |> 0fbf55 1c movsx edx,word ptr ss:[ebp+0x1c]
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0x0f,0xbf,0x45, 0x0a, // 00e3c340 |. 0fbf45 0a movsx eax,word ptr ss:[ebp+0xa]
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0x0f,0xbf,0x75, 0x1a, // 00e3c344 |. 0fbf75 1a movsx esi,word ptr ss:[ebp+0x1a]
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0x03,0xd7, // 00e3c348 |. 03d7 add edx,edi
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0x03,0xc2, // 00e3c34a |. 03c2 add eax,edx
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0x0f,0xbf,0x55, 0x08, // 00e3c34c |. 0fbf55 08 movsx edx,word ptr ss:[ebp+0x8]
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0x03,0xf7, // 00e3c350 |. 03f7 add esi,edi
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0x03,0xd6, // 00e3c352 |. 03d6 add edx,esi
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0x85,0xc9 // 00e3c354 |. 85c9 test ecx,ecx
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};
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enum { addr_offset = 0x00e3c2f0 - 0x00e3c33c }; // distance to the beginning of the function, which is 0x51 (push ecx)
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ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
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ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
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//GROWL(reladdr);
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if (!addr) {
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ConsoleOutput("AOS1: pattern not found");
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return false;
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}
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addr += addr_offset;
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//GROWL(addr);
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enum { push_ecx = 0x51 }; // beginning of the function
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if (*(BYTE *)addr != push_ecx) {
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ConsoleOutput("AOS1: beginning of the function not found");
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return false;
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}
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HookParam hp;
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hp.address = addr;
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hp.offset=get_stack(2);
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hp.type = DATA_INDIRECT;
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ConsoleOutput("INSERT AOS1");
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return NewHook(hp, "AOS1");
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}
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bool InsertAOS2Hook()
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{
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const BYTE bytes[] = {
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0x51, // 00C4E7E0 /$ 51 PUSH ECX ; mireado: hook here, function begins
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0x33,0xc0, // 00C4E7E1 |. 33C0 XOR EAX,EAX
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0x53, // 00C4E7E3 |. 53 PUSH EBX
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0x55, // 00C4E7E4 |. 55 PUSH EBP
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0x8b,0x2d//, XX4, // 00C4E7E5 |. 8B2D 40A3CF00 MOV EBP,DWORD PTR DS:[0CFA340] ; mireado: some time changing 40A3CF00 => 40A3C000
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//0x89,0x07, // 00C4E7EB |. 8907 MOV DWORD PTR DS:[EDI],EAX
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//0x89,0x47, 0x04 // 00C4E7ED |. 8947 04 MOV DWORD PTR DS:[EDI+4],EAX
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//0x56, // 00C4E7F0 |. 56 PUSH ESI
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//0x8b,0x75, 0x44 // 00C4E7F1 |. 8B75 44 MOV ESI,DWORD PTR SS:[EBP+44]
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};
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enum { addr_offset = 0 }; // distance to the beginning of the function, which is 0x51 (push ecx)
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ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
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ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
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//GROWL(reladdr);
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if (!addr) {
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ConsoleOutput("AOS2: pattern not found");
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return false;
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}
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addr += addr_offset;
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//GROWL(addr);
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enum { push_ecx = 0x51 }; // beginning of the function
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if (*(BYTE *)addr != push_ecx) {
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ConsoleOutput("AOS2: beginning of the function not found");
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return false;
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}
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HookParam hp;
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hp.address = addr;
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hp.offset=get_stack(2);
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hp.type = DATA_INDIRECT;
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ConsoleOutput("INSERT AOS2");
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return NewHook(hp, "AOS2");
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}
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bool InsertAOSHook()
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{ return InsertAOS1Hook() || InsertAOS2Hook();}
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namespace{
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DWORD calladdr(DWORD addr){
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if(addr==0)return 0;
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BYTE callop[] = { 0xe8 };
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addr = reverseFindBytes(callop, sizeof(callop), addr - 0x20, addr);
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if (addr == 0)return 0;
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auto calladdr = *(int*)((char*)addr + 1);
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ConsoleOutput("calladdr %p", calladdr);
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addr = calladdr + addr + 5;
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ConsoleOutput("funcaddr %p", addr);
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if (*(BYTE*)((BYTE*)addr - 1) != 0xcc)return 0;
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return addr;
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}
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DWORD lastcall(){
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auto entry=Util::FindImportEntry(processStartAddress,(DWORD)TextOutA);
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if(entry==0)return 0;
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BYTE bytes[]={0xFF,0x15,XX4};
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memcpy(bytes+2,&entry,4);
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auto addr = reverseFindBytes(bytes, sizeof(bytes), processStartAddress, processStopAddress);
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if(addr==0)return 0;
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addr = MemDbg::findEnclosingAlignedFunction(addr);
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return addr;
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}
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}
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regs mov_reg_ebpoffset(int reg) {
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switch (reg) {
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case 0x4B:
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return regs::ebx;
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case 0x48:
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return regs::eax;
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case 0x49:
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return regs::ecx;
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case 0x4a:
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return regs::edx;
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case 0x4c:
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return regs::ebp;
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case 0x4d:
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return regs::esp;
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case 0x4e:
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return regs::esi;
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case 0x4f:
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return regs::edi;
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default:
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return regs::invalid;
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}
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}
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bool AOS_EX() {
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BYTE aos_shared_bytes1[] = {
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0x3c,XX,
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0x74,XX,
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0x3c,XX,
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0x74,XX,
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0x3c,XX,
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0x74,XX,
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0x3c,XX,
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0x74,XX,
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0x3c,XX,
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0x74,XX,
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};
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BYTE aos_shared_bytes2[] = {
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0x80,0xfb,XX,
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0x74,XX,
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0x80,0xfb,XX,
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0x74,XX,
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0x80,0xfb,XX,
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0x74,XX,
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0x80,0xfb,XX,
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0x74,XX
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};
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std::vector<DWORD>addrs;
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addrs.push_back(calladdr(MemDbg::findBytes(aos_shared_bytes1, sizeof(aos_shared_bytes1), processStartAddress, processStopAddress)));
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addrs.push_back(calladdr(MemDbg::findBytes(aos_shared_bytes2, sizeof(aos_shared_bytes2), processStartAddress, processStopAddress)));
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addrs.push_back(lastcall());
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for(auto addr: addrs){
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if (addr == 0)continue;
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auto reg = mov_reg_ebpoffset(*(BYTE*)((BYTE*)addr + 5));
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int off;
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if (reg!=regs::invalid){
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//usercall
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off=get_reg(reg);
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}
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else if(((*(WORD*)addr))==0xec83) {
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//姫様LOVEライフ！
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//也是usercall，但是第二个参数是栈上。
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off=get_stack(1);
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}
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else{
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//螺旋遡行のディストピア -The infinite set of alternative version- 官方中文
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BYTE sig[]={0x89,0x55,0xFC};
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if(MemDbg::findBytes(sig, sizeof(sig), addr, addr+0x20)){
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off=get_reg(regs::edx);
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}
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else{
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//cdecl;
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off=get_stack(2);
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}
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}
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HookParam hp;
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hp.address = addr;
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hp.offset = off;
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hp.type = NO_CONTEXT | DATA_INDIRECT;
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hp.index = 0;
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return NewHook(hp, "AOS_EX");
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}
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return false;
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}
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bool AOS::attach_function() {
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bool b1=InsertAOSHook();
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bool b3=AOS_EX();
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return b1||b3;
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}
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