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Ajout de la récupération de la valeur des registres de la VM

This commit is contained in:
Horde Nicolas 2021-07-05 16:10:53 +02:00
parent 6203b579c8
commit cca897fc06
1 changed files with 70 additions and 2 deletions
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72
test.cpp
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@ -474,6 +474,7 @@ std::vector<std::array<std::string, 5>> Desassembler::Desassemble(Code *code)
{
out << "Désassemblage réussi, taille du source :" << srcsize;
log->append(out.str());
src.clear();
for (size_t j = 0; j < srcsize; j++)
{
std::string *bytes = new std::string("");
@ -561,6 +562,7 @@ class VMEngine
VMEngine(TextWindow *log);
void Configure(State *init,Code *code);
void Run(uint32_t start, uint32_t stop);
std::string getRegs();
private:
uc_engine *uc;
uc_err err;
@ -578,6 +580,70 @@ VMEngine::VMEngine(TextWindow *log) : log(log)
else
log->append("Initialisation de l'ordinateur IA86");
}
//EAX:00000000 | AX:0000 | AH:00 | AL:00
std::string VMEngine::getRegs()
{
int regsi836[] = {
UC_X86_REG_EAX, UC_X86_REG_EBX, UC_X86_REG_ECX, UC_X86_REG_EDX,
UC_X86_REG_ESI, UC_X86_REG_EDI,
UC_X86_REG_EBP, UC_X86_REG_ESP,
UC_X86_REG_CS,UC_X86_REG_DS,UC_X86_REG_ES,UC_X86_REG_SS,UC_X86_REG_FS,UC_X86_REG_GS,
UC_X86_REG_EIP,UC_X86_REG_EFLAGS
};
void *ptrs[sizeof(regsi836)];
uint32_t vals[sizeof(regsi836)];
for (size_t i = 0; i < sizeof(regsi836); i++) {
ptrs[i] = &vals[i];
}
err = uc_reg_read_batch(uc, regsi836, ptrs, sizeof(regsi836));
if (err > 0) {
log->append("Erreur lors de la récupération des registres depuis la VM");
return "";
}
std::stringstream out;
out << "EAX:" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << vals[0] << " | ";
out << "AX:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[0] & 0x0000FFFF) << " | ";
out << "AH:" << std::uppercase << std::setfill('0') << std::setw(2) << std::hex << ((vals[0] & 0xFF00) >> 8) << " | ";
out << "AL:" << std::uppercase << std::setfill('0') << std::setw(2) << std::hex << (vals[0] & 0xFF) << "\n";
out << "EBX:" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << vals[1] << " | ";
out << "BX:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[1] & 0x0000FFFF) << " | ";
out << "BH:" << std::uppercase << std::setfill('0') << std::setw(2) << std::hex << ((vals[1] & 0xFF00) >> 8) << " | ";
out << "BL:" << std::uppercase << std::setfill('0') << std::setw(2) << std::hex << (vals[1] & 0xFF) << "\n";
out << "ECX:" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << vals[2] << " | ";
out << "CX:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[2] & 0x0000FFFF) << " | ";
out << "CH:" << std::uppercase << std::setfill('0') << std::setw(2) << std::hex << ((vals[2] & 0xFF00) >> 8) << " | ";
out << "CL:" << std::uppercase << std::setfill('0') << std::setw(2) << std::hex << (vals[2] & 0xFF) << "\n";
out << "EDX:" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << vals[3] << " | ";
out << "DX:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[3] & 0x0000FFFF) << " | ";
out << "DH:" << std::uppercase << std::setfill('0') << std::setw(2) << std::hex << ((vals[3] & 0xFF00) >> 8) << " | ";
out << "DL:" << std::uppercase << std::setfill('0') << std::setw(2) << std::hex << (vals[3] & 0xFF) << "\n";
out << "ESI:" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << vals[4] << " | ";
out << "SI:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[4] & 0x0000FFFF) << "\n";
out << "EDI:" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << vals[5] << " | ";
out << "DI:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[5] & 0x0000FFFF) << "\n";
out << "EBP:" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << vals[6] << " | ";
out << "BP:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[6] & 0x0000FFFF) << "\n";
out << "ESP:" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << vals[7] << " | ";
out << "SP:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[7] & 0x0000FFFF) << "\n";
out << "CS:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[8] & 0x0000FFFF) << " | ";
out << "DS:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[9] & 0x0000FFFF) << " | ";
out << "ES:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[10] & 0x0000FFFF) << "\n";
out << "SS:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[11] & 0x0000FFFF) << " | ";
out << "FS:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[12] & 0x0000FFFF) << " | ";
out << "GS:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[13] & 0x0000FFFF) << "\n";
out << "EIP:" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << vals[14] << " | ";
out << "IP:" << std::uppercase << std::setfill('0') << std::setw(4) << std::hex << (vals[14] & 0x0000FFFF) << "\n";
out << "EFLAGS:" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << vals[15] << "";
return out.str();
}
void VMEngine::Configure(State *init, Code *code)
{
@ -666,7 +732,7 @@ void VMEngine::Configure(State *init, Code *code)
out << "EAX=" << std::uppercase << std::setfill('0') << std::setw(8) << std::hex << init->dump.regs.eax << " ";
log->append(out.str());
uc_mem_map(uc, init->dump.regs.eip,code->size, UC_PROT_ALL);
if (uc_mem_write(uc, init->dump.regs.eip, code->content, code->size))
if (uc_mem_write(uc, init->dump.regs.eip, &code->content, code->size-1))
{
log->append("Erreur de copie mémoire dans la machine virtuelle");
return;
@ -676,6 +742,7 @@ void VMEngine::Configure(State *init, Code *code)
void VMEngine::Run(uint32_t start, uint32_t stop)
{
err=uc_emu_start(uc, start, stop, 0, 0);
getRegs();
}
//----------------------------------------------------------------------
@ -773,7 +840,7 @@ void Menu::initCore()
{
setGoal(0);
}
//EAX:00000000 | AX:0000 | AH:00 | AL:00
void Menu::initWindows()
{
log.setText ("Journaux");
@ -953,6 +1020,7 @@ void Menu::exec()
return;
}
vm.Configure(&goals[scenario].init,code);
regs.set(vm.getRegs());
}
void Menu::trace()