LunaHook-mirror/LunaHook/engine32/Sprite.cpp

90 lines
2.4 KiB
C++
Raw Normal View History

2024-02-07 20:59:24 +08:00
#include"Sprite.h"
2024-03-04 13:30:31 +08:00
bool Sprite_attach_function() {
2024-02-07 20:59:24 +08:00
//恋と選挙とチョコレート
auto m=GetModuleHandle(L"dirapi.dll");
auto [minAddress, maxAddress] = Util::QueryModuleLimits(m);
const BYTE bytes[] = {
0x83,0xF8,0x40,
0x74,XX,
0x83,0xF8,0x43,
0x74,XX,
0x83,XX,0xFF,
0xEB,XX,
0x8D,0x45,0xF8,
XX,
XX,
XX,
//+20
0xE8,XX4,
0x89,0x45,0xF0,
0x8D,0x45,0xF4,
0x50,
XX,
0xE8,XX4
};
auto addr = MemDbg::findBytes(bytes, sizeof(bytes), minAddress, maxAddress);
if(addr==0)return false;
if(((*(int*)(addr+22))+addr+22)!=((*(int*)(addr+35))+addr+35))return false;
HookParam hp;
hp.address = addr+sizeof(bytes);
hp.offset=get_reg(regs::eax);
hp.type = USING_STRING;
return NewHook(hp, "Sprite");
2024-03-04 13:30:31 +08:00
}
namespace{
bool _h1(){
//https://vndb.org/v1714
//[Selen]はらみこ
auto FlashAssetx32=GetModuleHandleW(L"Flash Asset.x32");
if(FlashAssetx32==0)return false;
auto [s,e]=Util::QueryModuleLimits(FlashAssetx32);
const BYTE bytes[] = {
0x56,0x57,0x6a,0xff,
0xff,0x75,0x08,//ebp+8
0x53,
0x68,0xe4,0x04,0x00,0x00,
0xff,0x15,XX4//MultiByteToWideChar
};
auto addr = MemDbg::findBytes(bytes, sizeof(bytes), s, e);
if(addr==0)return false;
HookParam hp;
hp.address = addr+sizeof(bytes);//不知道从哪jump到call MultiByteToWideChar的
hp.offset=get_stack(5);
hp.type = USING_STRING;
hp.filter_fun=[](LPVOID data, size_t *size, HookParam *)->bool
{
static int idx=0;
return (idx++)%2;
};
2024-03-17 16:19:50 +08:00
return NewHook(hp, "Flash Asset");
}
bool _h2(){
auto TextXtra=GetModuleHandleW(L"TextXtra.x32");
if(TextXtra==0)return false;
auto [s,e]=Util::QueryModuleLimits(TextXtra);
const BYTE bytes[] = {
0xff,0x75,0x18,
0x8d,0x88,0xb8,0x00,0x00,0x00,
0xff,0x75,0x14,
0xff,0x75,0x10,
0xff,0x75,0x0c,
0xe8,XX4,
0x66,0x85,0xc0,
0x74
};
auto addr = MemDbg::findBytes(bytes, sizeof(bytes), s, e);
if(addr==0)return false;
addr=findfuncstart(addr,0x100);
if(addr==0)return false;
HookParam hp;
hp.address = addr;
hp.offset=get_stack(2);
hp.type = USING_STRING|CODEC_UTF8|EMBED_ABLE|EMBED_AFTER_NEW|EMBED_BEFORE_SIMPLE;
return NewHook(hp, "TextXtra");
2024-03-04 13:30:31 +08:00
}
}
bool Sprite::attach_function() {
2024-03-17 16:19:50 +08:00
return Sprite_attach_function()|_h1()|_h2();
2024-03-04 13:30:31 +08:00
}