mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-10-22 23:18:16 +08:00
116 lines
3.1 KiB
C++
116 lines
3.1 KiB
C++
#include "CodeX.h"
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bool CodeXFilter(LPVOID data, size_t *size, HookParam *)
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{
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std::string result = std::string((char *)data, *size);
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strReplace(result, "^n", "\n");
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if (startWith(result, "\n"))
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result = result.substr(1);
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//|晒[さら]
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result = std::regex_replace(result, std::regex("\\|(.+?)\\[(.+?)\\]"), "$1");
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return write_string_overwrite(data, size, result);
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}
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bool InsertCodeXHook()
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{
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/*
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* Sample games:
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* https://vndb.org/v41664
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* https://vndb.org/v36122
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*/
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const BYTE bytes[] = {
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0x83, 0xC4, 0x08, // add esp,08 << hook here
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0x8D, 0x85, XX4, // lea eax,[ebp-00000218]
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0x50, // push eax
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0x68, XX4, // push ???????????!.exe+10A76C
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0x85, 0xF6, // test esi,esi
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0x74, 0x4F, // je ???????????!.exe+2A95B
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0xFF, 0x15, XX4, // call dword ptr [???????????!.exe+C8140]
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0x8B, 0x85, XX4 // mov eax,[ebp-00000220] << alternative hook here
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};
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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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if (!addr)
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{
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ConsoleOutput("CodeX: pattern 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_reg(regs::eax);
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hp.index = 0;
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hp.type = USING_STRING | EMBED_ABLE | EMBED_AFTER_OVERWRITE | EMBED_BEFORE_SIMPLE; // 无法解决中文乱码
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hp.hook_font = F_GetGlyphOutlineA;
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hp.filter_fun = CodeXFilter;
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ConsoleOutput("INSERT CodeX");
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return NewHook(hp, "CodeX");
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}
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namespace
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{
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bool hook()
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{
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// 霞外籠逗留記
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BYTE _[] = {0x90, 0x90, 0x68, 0x64, 0x7B, 0x4C, 0x00}; // aHdL db 'hd{L',0
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ULONG addr = MemDbg::findBytes(_, sizeof(_), processStartAddress, processStopAddress);
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if (addr == 0)
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return false;
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addr += 2;
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BYTE bytes[] = {0x68, XX4};
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memcpy(bytes + 1, &addr, 4);
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auto addrs = Util::SearchMemory(bytes, sizeof(bytes), PAGE_EXECUTE, processStartAddress, processStopAddress);
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bool succ = false;
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for (auto adr : addrs)
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{
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adr = MemDbg::findEnclosingAlignedFunction(adr);
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if (adr == 0)
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continue;
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HookParam hp;
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hp.address = adr;
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hp.offset = get_stack(1);
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hp.type = CODEC_ANSI_BE;
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succ |= NewHook(hp, "CodeX");
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}
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return succ;
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}
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}
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namespace
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{
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// https://vndb.org/v598
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// ANGEL BULLET
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bool hook2()
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{
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BYTE _[] = {
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0x8b, 0x44, 0x24, 0x04,
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0x81, 0xec, XX4,
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0x25, 0xff, 0xff, 0, 0,
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0x8d, 0x54, 0x24, 0,
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0x56,
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0x8b, 0xf1,
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0x50,
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0x8d, 0x4e, XX,
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0x51,
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0x68, XX4, //%s%03d
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0x52,
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0xff, 0x15, XX4, // wprintfA
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};
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ULONG addr = MemDbg::findBytes(_, sizeof(_), processStartAddress, processStopAddress);
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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_reg(regs::edx);
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hp.type = USING_STRING;
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hp.filter_fun = CodeXFilter;
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return NewHook(hp, "CodeX");
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}
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}
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bool CodeX::attach_function()
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{
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return InsertCodeXHook() || hook() || hook2();
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} |