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new and updated hooks for BGI, WAFFLE, and QLIE

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This commit is contained in:
Akash Mozumdar 2018-08-02 01:05:53 -04:00
parent bc8ba90838
commit 634bb04f48
1 changed files with 54 additions and 5 deletions
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59
vnrhook/src/engine/engine.cc
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@ -1995,7 +1995,7 @@ bool InsertBGI2Hook()
return false;
}
DWORD funaddr = MemDbg::findEnclosingAlignedFunction(addr, 0x100); // range is around 177 ~ 190
DWORD funaddr = MemDbg::findEnclosingAlignedFunction(addr, 0x300); // range is around 177 ~ 190
enum : BYTE { push_ebp = 0x55 }; // 011d4c80 /$ 55 push ebp
if (!funaddr || *(BYTE *)funaddr != push_ebp) {
@ -2021,9 +2021,10 @@ bool InsertBGI2Hook()
case 0x00D8A660 - 0x00D8A73A:
hp.offset = 4 * 2;
break;
// Artikash 8/1/2018: Looks like it's basically always 4*2. Remove error from default case: breaks SubaHibi HD. Will figure out how to do this properly if it becomes an issue.
default:
ConsoleOutput("vnreng:BGI2: function found bug unrecognized hook offset");
return false;
hp.offset = 4 * 2;
break;
}
hp.address = funaddr;
@ -5940,7 +5941,7 @@ void InsertWaffleHook()
HookParam hp = {};
hp.address = i;
hp.length_offset = 1;
hp.offset = -0x20;
hp.offset = 8;
hp.index = 4;
hp.split = 0x1e8;
hp.type = DATA_INDIRECT|USING_SPLIT;
@ -7731,6 +7732,54 @@ void InsertBrunsHook()
*/
namespace { // unnamed QLIE
/**
* Artikash 8/1/2018: new QLIE hook. old one misses on https://vndb.org/v22308 and https://vndb.org/v19182
* ExtTextOut hook misses characters because of font caching
* Method to find H-code: trace call stack from ExtTextOut until missing characters from default hook are found
* /HW-1C*0:-20@base address of pattern
* characterizing pattern:
kimimeza.exe+100D9C - 55 - push ebp
kimimeza.exe+100D9D - 8B EC - mov ebp,esp
kimimeza.exe+100D9F - 83 C4 E4 - add esp,-1C { 228 }
kimimeza.exe+100DA2 - 53 - push ebx
kimimeza.exe+100DA3 - 56 - push esi
kimimeza.exe+100DA4 - 57 - push edi
kimimeza.exe+100DA5 - 33 D2 - xor edx,edx
kimimeza.exe+100DA7 - 89 55 FC - mov [ebp-04],edx
*/
bool InsertQLIE3Hook()
{
const BYTE bytes[] =
{
0x55,
0x8b, 0xec,
0x83, 0xc4, 0xe4,
0x53,
0x56,
0x57,
0x33, 0xd2,
0x89, 0x55, 0xfc
};
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStopAddress);
if (!addr) {
ConsoleOutput("NextHooker:QLIE3: pattern not found");
//ConsoleOutput("Not QLIE2");
return false;
}
HookParam hp = {};
hp.type = USING_UNICODE | DATA_INDIRECT | USING_SPLIT;
hp.length_offset = 1;
hp.offset = pusha_esi_off - 4;
hp.split = pusha_edi_off - 4;
hp.address = addr;
ConsoleOutput("NextHooker: INSERT QLIE3");
NewHook(hp, "QLiE3");
//ConsoleOutput("QLIE2");
return true;
}
/**
* jichi 8/18/2013: new QLIE hook
* See: http://www.hongfire.com/forum/showthread.php/420362-QLIE-engine-Hcode
@ -7822,7 +7871,7 @@ bool InsertQLIE1Hook()
// jichi 8/18/2013: Add new hook
bool InsertQLIEHook()
{ return InsertQLIE1Hook() || InsertQLIE2Hook(); }
{ return InsertQLIE1Hook() || InsertQLIE2Hook() || InsertQLIE3Hook(); }
/********************************************************************************************
CandySoft hook: