mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-11-27 15:54:03 +08:00
275 lines
8.7 KiB
C++
275 lines
8.7 KiB
C++
#include "Reallive.h"
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/********************************************************************************************
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Reallive hook:
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Process name is reallive.exe or reallive*.exe.
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Technique to find Reallive hook is quite different from 2 above.
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Usually Reallive engine has a font caching issue. This time we wait
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until the first call to GetGlyphOutlineA. Reallive engine usually set
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up stack frames so we can just refer to EBP to find function entry.
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********************************************************************************************/
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/** jichi 5/13/2015
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* RealLive does not work for 水着少女と媚薬アイス from 裸足少女
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* 012da80f cc int3
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* 012da810 55 push ebp ; jichi: change to hook here
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* 012da811 8bec mov ebp,esp
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* 012da813 83ec 10 sub esp,0x10 ; jichi: hook here by default
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* 012da816 53 push ebx
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* 012da817 56 push esi
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* 012da818 57 push edi
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* 012da819 8b7d 18 mov edi,dword ptr ss:[ebp+0x18]
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* 012da81c 81ff 5c810000 cmp edi,0x815c
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* 012da822 75 0a jnz short reallive.012da82e
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* 012da824 c745 18 9f840000 mov dword ptr ss:[ebp+0x18],0x849f
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* 012da82b 8b7d 18 mov edi,dword ptr ss:[ebp+0x18]
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* 012da82e b8 9041e301 mov eax,reallive.01e34190
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* 012da833 b9 18a49001 mov ecx,reallive.0190a418
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* 012da838 e8 a38d0000 call reallive.012e35e0
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* 012da83d 85c0 test eax,eax
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* 012da83f 74 14 je short reallive.012da855
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* 012da841 e8 6addffff call reallive.012d85b0
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* 012da846 ba 9041e301 mov edx,reallive.01e34190
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* 012da84b b8 18a49001 mov eax,reallive.0190a418
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* 012da850 e8 ab7c0000 call reallive.012e2500
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* 012da855 8d45 f0 lea eax,dword ptr ss:[ebp-0x10]
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* 012da858 50 push eax
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* 012da859 8d4d f4 lea ecx,dword ptr ss:[ebp-0xc]
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* 012da85c 51 push ecx
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* 012da85d 8d55 fc lea edx,dword ptr ss:[ebp-0x4]
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* 012da860 52 push edx
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* 012da861 8d45 f8 lea eax,dword ptr ss:[ebp-0x8]
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* 012da864 50 push eax
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* 012da865 8bc7 mov eax,edi
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* 012da867 e8 54dfffff call reallive.012d87c0
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* 012da86c 8bf0 mov esi,eax
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* 012da86e 83c4 10 add esp,0x10
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* 012da871 85f6 test esi,esi
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* 012da873 75 4b jnz short reallive.012da8c0
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* 012da875 8d4d f4 lea ecx,dword ptr ss:[ebp-0xc]
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* 012da878 51 push ecx
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* 012da879 57 push edi
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* 012da87a 8d4d f0 lea ecx,dword ptr ss:[ebp-0x10]
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* 012da87d e8 cef0ffff call reallive.012d9950
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* 012da882 8bf0 mov esi,eax
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* 012da884 83c4 08 add esp,0x8
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* 012da887 85f6 test esi,esi
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*/
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static bool InsertRealliveDynamicHook(LPVOID addr, hook_stack *stack)
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{
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if (addr != ::GetGlyphOutlineA)
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return false;
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// jichi 5/13/2015: Find the enclosing caller of GetGlyphOutlineA
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if (DWORD i = stack->ebp)
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{
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i = *(DWORD *)(i + 4);
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for (DWORD j = i; j > i - 0x100; j--)
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if (*(WORD *)j == 0xec83)
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{ // jichi 7/26/2014: function starts
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// 012da80f cc int3
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// 012da810 55 push ebp ; jichi: change to hook here
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// 012da811 8bec mov ebp,esp
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// 012da813 83ec 10 sub esp,0x10 ; jichi: hook here by default
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if (*(DWORD *)(j - 3) == 0x83ec8b55)
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j -= 3;
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HookParam hp;
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hp.address = j;
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hp.offset = get_stack(5);
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hp.split = get_reg(regs::esp);
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hp.type = CODEC_ANSI_BE | USING_SPLIT;
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// GROWL_DWORD(hp.address);
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// RegisterEngineType(ENGINE_REALLIVE);
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ConsoleOutput("RealLive: disable GDI hooks");
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return NewHook(hp, "RealLive");
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}
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}
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return true; // jichi 12/25/2013: return true
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}
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void InsertRealliveHook()
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{
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// ConsoleOutput("Probably Reallive. Wait for text.");
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ConsoleOutput("TRIGGER Reallive");
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trigger_fun = InsertRealliveDynamicHook;
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}
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bool RlBabelFilter(LPVOID data, size_t *size, HookParam *)
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{
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auto text = reinterpret_cast<LPSTR>(data);
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auto len = reinterpret_cast<size_t *>(size);
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if (text[0] == '\x01')
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{
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StringFilterBetween(text, len, "\x01", 1, "\x02", 1); // remove names
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}
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CharReplacer(text, len, '\x08', '"');
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CharReplacer(text, len, '\x09', '\'');
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CharReplacer(text, len, '\x0A', '\'');
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CharFilter(text, len, '\x1F'); // remove color
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StringReplacer(text, len, "\x89\x85", 2, "\x81\x63", 2); // "\x89\x85"-> shift-JIS"…"
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StringReplacer(text, len, "\x89\x97", 2, "--", 2);
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return true;
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}
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bool InsertRlBabelHook()
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{
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/*
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* Sample games:
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* https://vndb.org/r78318
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*/
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const BYTE bytes[] = {
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0xCC, // int 3
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0x55, // push ebp <- hook here
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0x8B, 0xEC, // mov ebp,esp
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0x83, 0xEC, 0x20, // sub esp,20
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0xC7, 0x45, 0xFC, XX4 // mov [ebp-04],rlBabel.DLL+16804
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};
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HMODULE module = GetModuleHandleW(L"rlBabel.dll");
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if (!module)
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return false;
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auto [minAddress, maxAddress] = Util::QueryModuleLimits(module);
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ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), minAddress, maxAddress);
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if (!addr)
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return false;
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HookParam hp;
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hp.address = addr + 1;
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hp.offset = get_reg(regs::eax);
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hp.type = USING_STRING;
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hp.filter_fun = RlBabelFilter;
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ConsoleOutput("INSERT RealLive Babel");
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return NewHook(hp, "RealLive Babel");
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}
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namespace
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{
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bool clannad_en_steam()
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{
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// if ( v12 == 33116 || v12 == 33951 || v12 == 33962 )
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BYTE sig[] = {
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0x81, 0xFE, 0x5C, 0x81, 0x00, 0x00,
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0x74, 0x10,
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0x81, 0xFE, 0x9F, 0x84, 0x00, 0x00,
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0x74, 0x08,
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0x81, 0xFE, 0xAA, 0x84, 0x00, 0x00,
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0x75, XX};
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ULONG addr = MemDbg::findBytes(sig, sizeof(sig), processStartAddress, processStopAddress);
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if (!addr)
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return false;
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HookParam hp;
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hp.address = addr;
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hp.offset = get_reg(regs::esi);
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hp.type = USING_CHAR | CODEC_ANSI_LE;
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return NewHook(hp, "RealLiveX");
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}
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}
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namespace
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{
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// https://vndb.org/r1944
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bool veryold()
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{
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HookParam hp;
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hp.address = (DWORD)GetProcAddress(GetModuleHandleA("gdi32.dll"), "GetGlyphOutline");
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hp.type = HOOK_RETURN;
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hp.text_fun = [](hook_stack *stack, HookParam *hps, uintptr_t *data, uintptr_t *split, size_t *len)
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{
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hps->type = HOOK_EMPTY;
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auto addr = findfuncstart(hps->address);
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if (!addr)
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return;
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auto addrs = findxref_reverse_checkcallop(addr, processStartAddress, processStopAddress, 0xe8);
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if (addrs.size() != 1)
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return;
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addr = addrs[0];
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addr = MemDbg::findEnclosingAlignedFunction(addr);
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if (!addr)
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return;
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HookParam hp;
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hp.address = addr;
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hp.offset = get_stack(5);
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hp.type = USING_CHAR | CODEC_ANSI_BE;
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NewHook(hp, "RealLiveOld");
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};
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return NewHook(hp, "GetGlyphOutline");
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}
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}
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bool Reallive::attach_function()
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{
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InsertRealliveHook();
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InsertRlBabelHook() || clannad_en_steam() || veryold();
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return true;
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}
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bool avg3216dattach_function()
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{
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BYTE pattern1[] = {
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//clang-format off
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0x3c, 0x81, XX2,
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0x3c, 0x9f, XX2,
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0x3c, 0xe0, XX2,
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0x3c, 0xfc, XX2,
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//clang-format on
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};
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BYTE pattern2[] = {
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0x8b, 0x75, 0x08,
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0x8a, 0x06,
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0x3c, 0x81,
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0x75, XX,
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0x80, 0x7e, 0x01, 0x7a};
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auto addr = MemDbg::findBytes(pattern2, sizeof(pattern2), processStartAddress, processStopAddress);
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if (addr == 0)
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return false;
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addr = MemDbg::findEnclosingAlignedFunction(addr);
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if (addr == 0)
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return false;
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auto check = MemDbg::findBytes(pattern1, sizeof(pattern1), addr, addr + 0x200);
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if (check == 0)
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return false;
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HookParam hp;
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hp.address = addr;
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hp.offset = get_stack(1);
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hp.type = NO_CONTEXT | DATA_INDIRECT;
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// GROWL_DWORD(hp.address);
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return NewHook(hp, "avg3216d");
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}
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bool avg3216dattach_function2()
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{
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// https://vndb.org/v12860
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// effect～悪魔の仔～
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BYTE pattern2[] = {
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//clang-format off
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0x80, 0xf9, 0x81,
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0x72, 0x05,
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0x80, 0xf9, 0x9f,
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0x76, XX, // 76 17
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0x80, 0xf9, 0xe0,
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0x72, 0x05,
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0x80, 0xf9, 0xfc,
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0x76, 0x0d,
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//clang-format on
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};
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auto addr = MemDbg::findBytes(pattern2, sizeof(pattern2), processStartAddress, processStopAddress);
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if (addr == 0)
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return false;
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addr = findfuncstart(addr, 0x200, true);
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if (addr == 0)
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return false;
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HookParam hp;
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hp.address = addr;
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hp.offset = get_stack(1);
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hp.type = USING_STRING;
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// GROWL_DWORD(hp.address);
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return NewHook(hp, "avg3217d");
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}
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bool avg3216d::attach_function()
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{
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return avg3216dattach_function() || avg3216dattach_function2();
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} |