You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
145 lines
4.1 KiB
145 lines
4.1 KiB
#include <iostream>
|
|
#include <Windows.h>
|
|
#include <fstream>
|
|
#include <filesystem>
|
|
|
|
#include <vmp2.hpp>
|
|
#include <vmprofiler.hpp>
|
|
#include <cli-parser.hpp>
|
|
#include <xtils.hpp>
|
|
|
|
int __cdecl main(int argc, const char* argv[])
|
|
{
|
|
argparse::argument_parser_t parser(
|
|
"vmprofiler-cli", "virtual instruction pseudo code generator");
|
|
|
|
parser.add_argument()
|
|
.names({ "--bin", "--vmpbin" })
|
|
.description("unpacked binary protected with VMProtect 2")
|
|
.required(true);
|
|
|
|
parser.add_argument()
|
|
.names({ "--vmentry", "--entry" })
|
|
.description("rva to push prior to a vm_entry")
|
|
.required(true);
|
|
|
|
parser.add_argument()
|
|
.name("--showhandlers")
|
|
.description("show all vm handlers...");
|
|
|
|
parser.enable_help();
|
|
auto err = parser.parse(argc, argv);
|
|
|
|
if (err)
|
|
{
|
|
std::cout << err << std::endl;
|
|
return -1;
|
|
}
|
|
|
|
if (parser.exists("help"))
|
|
{
|
|
parser.print_help();
|
|
return 0;
|
|
}
|
|
|
|
const auto module_base =
|
|
reinterpret_cast<std::uintptr_t>(
|
|
LoadLibraryExA(parser.get<std::string>("bin").c_str(),
|
|
NULL, DONT_RESOLVE_DLL_REFERENCES));
|
|
|
|
const auto vm_entry_ptr =
|
|
module_base + std::strtoull(
|
|
parser.get<std::string>("vmentry").c_str(), nullptr, 16);
|
|
|
|
const auto image_base =
|
|
xtils::um_t::get_instance()->image_base(
|
|
parser.get<std::string>("bin").c_str());
|
|
|
|
zydis_routine_t vm_entry;
|
|
std::printf("> vm entry start = 0x%p\n", vm_entry_ptr);
|
|
|
|
if (!vm::util::flatten(vm_entry, vm_entry_ptr))
|
|
{
|
|
std::printf("> failed to flatten vm entry...\n");
|
|
return -1;
|
|
}
|
|
|
|
vm::util::deobfuscate(vm_entry);
|
|
std::printf("> flattened vm entry...\n");
|
|
std::printf("> deobfuscated vm entry...\n");
|
|
std::printf("==================================================================================\n");
|
|
vm::util::print(vm_entry);
|
|
|
|
const auto vm_handler_table =
|
|
vm::handler::table::get(vm_entry);
|
|
|
|
if (!vm_handler_table)
|
|
{
|
|
std::printf("> failed to locate vm handler table...\n");
|
|
return -1;
|
|
}
|
|
|
|
std::printf("==================================================================================\n");
|
|
std::printf("> located vm handler table... at = 0x%p, rva = 0x%p\n", vm_handler_table,
|
|
(reinterpret_cast<std::uintptr_t>(vm_handler_table) - module_base) + image_base);
|
|
|
|
zydis_decoded_instr_t vm_handler_transform;
|
|
if (!vm::handler::table::get_transform(vm_entry, &vm_handler_transform))
|
|
{
|
|
std::printf("[!] failed to locate vm handler table entry transformation...\n");
|
|
return -1;
|
|
}
|
|
|
|
std::printf("> vm handler table entries decrypted with = ");
|
|
vm::util::print(vm_handler_transform);
|
|
|
|
vm_handler_transform.mnemonic = vm::transform::inverse[vm_handler_transform.mnemonic];
|
|
std::printf("> vm handler table entries encrypted with = ");
|
|
vm::util::print(vm_handler_transform);
|
|
|
|
std::printf("==================================================================================\n");
|
|
std::vector<zydis_decoded_instr_t> vinstr_rva_decrypt_instrs;
|
|
if (!vm::instrs::get_rva_decrypt(vm_entry, vinstr_rva_decrypt_instrs))
|
|
{
|
|
std::printf("[!] failed to get virtual instruction rva decrypt transformations...\n");
|
|
return -1;
|
|
}
|
|
|
|
std::printf("> virtual instruction rva decryption instructions:\n");
|
|
for (auto& transform : vinstr_rva_decrypt_instrs)
|
|
{
|
|
std::printf("\t");
|
|
vm::util::print(transform);
|
|
}
|
|
|
|
std::vector<vm::handler::handler_t> vm_handlers;
|
|
if (!vm::handler::get_all(module_base, image_base, vm_entry, vm_handler_table, vm_handlers))
|
|
{
|
|
std::printf("> failed to get all vm handler meta data...\n");
|
|
return -1;
|
|
}
|
|
|
|
if (parser.exists("showhandlers"))
|
|
{
|
|
for (auto idx = 0u; idx < vm_handlers.size(); ++idx)
|
|
{
|
|
auto vm_handler = vm_handlers[idx];
|
|
std::printf("==========[vm handler %s, idx = %d, imm size = %d]========\n",
|
|
vm_handler.profile ? vm_handler.profile->name : "UNKNOWN", idx,
|
|
vm_handler.imm_size);
|
|
|
|
std::printf("================[vm handler instructions]==============\n");
|
|
vm::util::print(vm_handler.instrs);
|
|
|
|
if (vm_handler.imm_size)
|
|
{
|
|
std::printf("=================[vm handler transforms]===============\n");
|
|
for (const auto& [transform_type, transform] : vm_handler.transforms)
|
|
vm::util::print(transform);
|
|
}
|
|
|
|
std::printf("=======================================================\n\n");
|
|
}
|
|
}
|
|
std::printf("> finished...\n");
|
|
} |