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AOS engine pattern update

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This commit is contained in:
mireado 2016-04-20 23:18:15 +09:00
parent a9639a4d97
commit 52adef33a4
1 changed files with 47 additions and 1 deletions
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48
vnr/vnrhook/src/engine/engine.cc
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@ -10924,7 +10924,8 @@ bool InsertTencoHook()
* 00e3c354 |. 85c9 test ecx,ecx
* 00e3c356 |. 74 32 je short 恋する<EFBFBD>00e3c38a
*/
bool InsertAOSHook()
bool InsertAOS1Hook()
{
// jichi 4/2/2014: The starting of this function is different from ヂ<>モノツキ
// So, use a pattern in the middle of the function instead.
@ -10982,6 +10983,51 @@ bool InsertAOSHook()
return true;
}
bool InsertAOS2Hook()
{
const BYTE bytes[] = {
0x51, // 00C4E7E0 /$ 51 PUSH ECX ; mireado: hook here, function begins
0x33,0xc0, // 00C4E7E1 |. 33C0 XOR EAX,EAX
0x53, // 00C4E7E3 |. 53 PUSH EBX
0x55, // 00C4E7E4 |. 55 PUSH EBP
0x8b,0x2d, 0x40,0xa3,0xcf,0x00, // 00C4E7E5 |. 8B2D 40A3CF00 MOV EBP,DWORD PTR DS:[0CFA340]
0x89,0x07, // 00C4E7EB |. 8907 MOV DWORD PTR DS:[EDI],EAX
0x89,0x47, 0x04, // 00C4E7ED |. 8947 04 MOV DWORD PTR DS:[EDI+4],EAX
0x56, // 00C4E7F0 |. 56 PUSH ESI
0x8b,0x75, 0x44, // 00C4E7F1 |. 8B75 44 MOV ESI,DWORD PTR SS:[EBP+44]
};
enum { addr_offset = 0 }; // distance to the beginning of the function, which is 0x51 (push ecx)
ULONG range = min(module_limit_ - module_base_, MAX_REL_ADDR);
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), module_base_, module_base_ + range);
//GROWL(reladdr);
if (!addr) {
ConsoleOutput("vnreng:AOS: pattern not found");
return false;
}
addr += addr_offset;
//GROWL(addr);
enum { push_ecx = 0x51 }; // beginning of the function
if (*(BYTE *)addr != push_ecx) {
ConsoleOutput("vnreng:AOS: beginning of the function not found");
return false;
}
HookParam hp = {};
hp.address = addr;
hp.length_offset = 1;
hp.offset = 8;
hp.type = DATA_INDIRECT;
ConsoleOutput("vnreng: INSERT AOS2");
NewHook(hp, "AOS2");
return true;
}
bool InsertAOSHook()
{ return InsertAOS1Hook() || InsertAOS2Hook();}
/**
* jichi 1/10/2014: Rai7 puk
* See: http://www.hongfire.com/forum/showthread.php/421909-%E3%80%90Space-Warfare-Sim%E3%80%91Rai-7-PUK/page10