Vmprotect: Unpacker X64dbg

// Step 8: OEP finder after unpacking completes find_oep: // Look for typical entry point patterns find base_address, #6A??68????????E8????????# // Push pattern cmp $result, 0 je not_found log "[!] Potential OEP candidate at: {@result}" oep_address = $result bp oep_address

def find_vm_entry(self): """Locate virtual machine entry point""" # VM handlers often have characteristic instruction sequences patterns = [ b'\x55\x8B\xEC\x83\xEC', # Standard prologue b'\xFF\x25', # Indirect JMP b'\xE8\x00\x00\x00\x00' # CALL $+5 ] return self.scan_memory(patterns) vmprotect unpacker x64dbg

// Step 1: Identify target sections msg "Starting VMProtect analysis..." base_address = mod.base() section_start = base_address + 0x1000 // Step 8: OEP finder after unpacking completes

skip_iat: // Step 6: Memory dump section detection var sections = mod.sections() log "[*] Analyzing sections..." #6A??68????????E8????????# // Push pattern cmp $result

continue_execution: run

// Step 7: Locate OEP after unpacking bp VirtualProtect erun // Execute until VirtualProtect is hit

def extract_unpacked(self): """Dump unpacked sections to memory""" # After unpacking, dump memory regions import struct # Map memory sections and write to file pass