mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-12-26 21:24:12 +08:00
216 lines
6.2 KiB
C++
216 lines
6.2 KiB
C++
#include "V8.h"
|
||
#include "v8/v8.h"
|
||
#if 0
|
||
// Artikash 6/23/2019: V8 (JavaScript runtime) has rcx = string** at v8::String::Write
|
||
// sample game https://www.freem.ne.jp/dl/win/18963
|
||
bool InsertV8Hook(HMODULE module)
|
||
{
|
||
uint64_t addr1 = (uint64_t)GetProcAddress(module, "?Write@String@v8@@QEBAHPEAGHHH@Z"),
|
||
// Artikash 6/7/2021: Add new hook for new version of V8 used by RPG Maker MZ
|
||
addr2 = (uint64_t)GetProcAddress(module, "??$WriteToFlat@G@String@internal@v8@@SAXV012@PEAGHH@Z");
|
||
|
||
if (addr1 || addr2)
|
||
{
|
||
std::tie(spDefault.minAddress, spDefault.maxAddress) = Util::QueryModuleLimits(module);
|
||
spDefault.maxRecords = Util::SearchMemory(spDefault.pattern, spDefault.length, PAGE_EXECUTE, spDefault.minAddress, spDefault.maxAddress).size() * 20;
|
||
ConsoleOutput("JavaScript hook is known to be low quality: try searching for hooks if you don't like it");
|
||
}
|
||
auto succ=false;
|
||
if (addr1)
|
||
{
|
||
HookParam hp;
|
||
hp.type = USING_STRING | CODEC_UTF16;
|
||
hp.address = addr1;
|
||
hp.text_fun = [](hook_stack* stack, HookParam *hp, uintptr_t* data, uintptr_t* split, size_t* count)
|
||
{
|
||
*data=(*(uintptr_t*)(stack->rcx))+23;
|
||
int len = *(int*)(*data - 4);
|
||
if(wcslen((wchar_t*)*data)*2<len)return;
|
||
*count=len*2;
|
||
};
|
||
succ|=NewHook(hp, "JavaScript");
|
||
}
|
||
if (addr2)
|
||
{
|
||
HookParam hp;
|
||
hp.type = USING_STRING | CODEC_UTF16;
|
||
hp.address = addr2;
|
||
hp.text_fun = [](hook_stack* stack, HookParam *hp, uintptr_t* data, uintptr_t* split, size_t* count)
|
||
{
|
||
*data=(stack->rcx)+11;
|
||
int len = *(int*)(*data - 4);
|
||
if(wcslen((wchar_t*)*data)*2<len)return;
|
||
*count=len*2;
|
||
};
|
||
succ|=NewHook(hp, "JavaScript");
|
||
}
|
||
return succ;
|
||
}
|
||
namespace{
|
||
uintptr_t forwardsearch(BYTE* b,int size,uintptr_t addr,int range){
|
||
for(int i=0;i<range;i++){
|
||
bool ok=true;
|
||
for(int j=0;j<size;j++){
|
||
if((*(BYTE*)(b+j))==XX)continue;
|
||
if((*(BYTE*)(b+j))!=((*(BYTE*)(addr+i+j)))){
|
||
ok=false;break;
|
||
}
|
||
}
|
||
if(ok){
|
||
return addr+i;
|
||
}
|
||
}
|
||
return 0;
|
||
}
|
||
regs andregimm(BYTE* b){
|
||
|
||
if(*b==0x81)
|
||
switch (*(b+1))
|
||
{
|
||
case 0xe1:return regs::rcx;//rcx
|
||
case 0xe2:return regs::rdx;//rdx
|
||
case 0xe3:return regs::rbp;//rbx
|
||
case 0xe5:return regs::rbp;//rbp
|
||
case 0xe6:return regs::rsi;//rsi
|
||
case 0xe7:return regs::rdi;//rdi
|
||
default:return regs::invalid;
|
||
}
|
||
else
|
||
return regs::invalid;
|
||
}
|
||
std::vector<HookParam> hookw(HMODULE module){
|
||
const BYTE BYTES[] = {
|
||
0x81,XX,0x00,0xf8,0x00,0x00
|
||
};
|
||
std::vector<HookParam>save;
|
||
auto addrs = Util::SearchMemory(BYTES, sizeof(BYTES), PAGE_EXECUTE, processStartAddress, processStopAddress);
|
||
for(auto addr:addrs){
|
||
auto addrsave=addr;
|
||
BYTE sig1[]={0x81,XX,0x00,0xD8,0x00,0x00};
|
||
BYTE sig2[]={0x81,XX,0x00,0xFC,0x00,0x00};
|
||
BYTE sig3[]={0x81,XX,0x00,0xDC,0x00,0x00};
|
||
BYTE sig4[]={XX,0x00,0x24,0xA0,0xFC};
|
||
|
||
addr=forwardsearch(sig1,sizeof(sig1),addr,0x20);
|
||
if(addr==0)continue;
|
||
|
||
addr=forwardsearch(sig2,sizeof(sig2),addr,0x100);
|
||
if(addr==0)continue;
|
||
|
||
addr=forwardsearch(sig3,sizeof(sig3),addr,0x20);
|
||
if(addr==0)continue;
|
||
|
||
addr=forwardsearch(sig4,sizeof(sig4),addr,0x20);
|
||
if(addr==0)continue;
|
||
auto off=andregimm((BYTE*)addrsave);
|
||
if(off==regs::invalid)continue;
|
||
HookParam hp;
|
||
hp.address = (uint64_t)addrsave ;
|
||
hp.type = CODEC_UTF16|NO_CONTEXT ;
|
||
hp.offset =get_reg(off);
|
||
save.push_back(hp);
|
||
|
||
}
|
||
return save;
|
||
}
|
||
#if 0
|
||
std::vector<HookParam> v8hook1(HMODULE module) {
|
||
|
||
const BYTE BYTES[] = {
|
||
0x81,0xE1,0x00,0xF8,0x00,0x00,
|
||
0x41,0xBE,0x01,0x00,0x00,0x00,
|
||
0x81,0xF9,0x00,0xD8,0x00,0x00
|
||
};
|
||
auto addrs = Util::SearchMemory(BYTES, sizeof(BYTES), PAGE_EXECUTE, processStartAddress, processStopAddress);
|
||
if (addrs.size() != 1)return {};
|
||
auto addr = (uint64_t)addrs[0];
|
||
const BYTE start[] = {
|
||
0xCC
|
||
};
|
||
const BYTE start2[] = {
|
||
0x41,0x57,0x41,0x56,0x41,0x55,0x41,0x54
|
||
};
|
||
addr=reverseFindBytes(start, sizeof(start), addr - 0x1000, addr);
|
||
if (addr == 0)return {};
|
||
addr += 1;
|
||
addrs = findxref_reverse(addr, addr - 0x10000, addr + 0x10000);
|
||
if (addrs.size() != 1)return {};
|
||
addr = addrs[0];
|
||
|
||
addr = reverseFindBytes(start2, sizeof(start2), addr - 0x1000, addr);
|
||
if (addr == 0)return {};
|
||
addrs = findxref_reverse(addr, addr - 0x10000, addr + 0x10000);
|
||
std::vector<HookParam> save;
|
||
for (auto addr : addrs) {
|
||
addr = reverseFindBytes(start2, sizeof(start2), addr - 0x1000, addr);
|
||
if (addr == 0)continue;
|
||
HookParam hp;
|
||
hp.address = (uint64_t)addr;
|
||
hp.type = USING_STRING | CODEC_UTF16 | DATA_INDIRECT;
|
||
hp.offset=get_reg(regs::rcx);
|
||
hp.padding = 0xC;
|
||
hp.index = 0;
|
||
|
||
save.push_back(hp);
|
||
}
|
||
return save;
|
||
}
|
||
#endif
|
||
bool innerHTML(HMODULE module) {
|
||
//花葬
|
||
//result = sub_142DF3CA0(a2, v5, 1u, (__int64)"innerHTML", a3);
|
||
//r10当全为ascii是普通string，否则为wchar_t
|
||
//a3是一个callback,并不是字符串。
|
||
char innerHTML[]="innerHTML";
|
||
auto addr = MemDbg::findBytes(innerHTML, sizeof(innerHTML), processStartAddress, processStopAddress);
|
||
ConsoleOutput("%x",addr);
|
||
if(addr==0)return false;
|
||
bool ok=false;
|
||
for(auto _addr=processStartAddress+4;_addr<processStopAddress;_addr+=1){
|
||
if((_addr+*(int*)(_addr-4) )==addr){
|
||
ConsoleOutput("%x",_addr-processStartAddress);
|
||
for(int i=0;i<0x20;i++){
|
||
if(*(BYTE*)(_addr+i)==0xe8){
|
||
uintptr_t subaddr=_addr+i+5+*(int*)(_addr+i+1);
|
||
HookParam hp;
|
||
hp.address = (uint64_t)subaddr;
|
||
hp.type = USING_STRING | CODEC_UTF16 ;
|
||
hp.offset=get_reg(regs::r10);
|
||
hp.text_fun=[](hook_stack* stack, HookParam* hp, uintptr_t* data, uintptr_t* split, size_t* len){
|
||
auto text =stack->r10;
|
||
if(strlen((char*) text)>1){
|
||
hp->type=USING_STRING|CODEC_UTF8|NO_CONTEXT;
|
||
*split=0x1;
|
||
*len=strrchr((char*)text,'>')+1-(char*)text;
|
||
}
|
||
else{
|
||
hp->type=USING_STRING|CODEC_UTF16|NO_CONTEXT;
|
||
*split=0x10;
|
||
*len=wcsrchr((wchar_t*)text,L'>')+1-(wchar_t*)text;
|
||
*len*=2;
|
||
}
|
||
};
|
||
ok|=NewHook(hp,"innerHTML");
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return ok;
|
||
}
|
||
bool addhooks(HMODULE module){
|
||
if (GetProcAddress(module, "?Write@String@v8@@QEBAHPEAVIsolate@2@PEAGHHH@Z") == 0)return false;
|
||
bool success=false;
|
||
for(auto h:hookw(module)){
|
||
success|=NewHook(h,"electronW");
|
||
}
|
||
return innerHTML(module)|| success;
|
||
}
|
||
}
|
||
|
||
#endif
|
||
bool V8::attach_function_()
|
||
{
|
||
|
||
return tryhookv8();
|
||
}
|