mirror of
https://github.com/dobin/SuperMega
synced 2026-06-03 01:27:11 +00:00
Dobin
91 lines
2.6 KiB
Python
91 lines
2.6 KiB
Python
import sys
|
|
import pefile
|
|
import pprint
|
|
from keystone import Ks, KS_ARCH_X86, KS_MODE_64
|
|
from capstone import Cs, CS_ARCH_X86, CS_MODE_64
|
|
|
|
|
|
def assemble_and_disassemble_jump(current_address, destination_address):
|
|
print("Make jmp from 0x{:X} to 0x{:X}".format(
|
|
current_address, destination_address
|
|
))
|
|
# Calculate the relative offset
|
|
# For a near jump, the instruction length is typically 5 bytes (E9 xx xx xx xx)
|
|
offset = destination_address - current_address
|
|
|
|
# Assemble the jump instruction using Keystone
|
|
ks = Ks(KS_ARCH_X86, KS_MODE_64)
|
|
encoding, _ = ks.asm(f"call qword ptr ds:[{offset}]")
|
|
machine_code = bytes(encoding)
|
|
|
|
# Disassemble the machine code using Capstone
|
|
cs = Cs(CS_ARCH_X86, CS_MODE_64)
|
|
disassembled = next(cs.disasm(machine_code, current_address))
|
|
|
|
print(f"Machine Code: {' '.join(f'{byte:02x}' for byte in machine_code)}")
|
|
print(f"Disassembled: {disassembled.mnemonic} {disassembled.op_str}")
|
|
return machine_code
|
|
|
|
|
|
def extract_iat(pe):
|
|
iat = {}
|
|
|
|
# If the PE file was loaded using the fast_load=True argument, we will need to parse the data directories:
|
|
#pe.parse_data_directories()
|
|
|
|
# Retrieve the IAT entries from the PE file
|
|
for entry in pe.DIRECTORY_ENTRY_IMPORT:
|
|
for imp in entry.imports:
|
|
dll_name = entry.dll.decode('utf-8')
|
|
imp_name = imp.name.decode('utf-8')
|
|
imp_addr = imp.address
|
|
#pprint.pprint(imp.keys())
|
|
#print(type(imp))
|
|
|
|
#print("{} {} - 0x{:08X}".format(
|
|
# dll_name,
|
|
# imp_name,
|
|
# imp_addr
|
|
#))
|
|
|
|
if not dll_name in iat:
|
|
iat[dll_name] = []
|
|
|
|
iat[dll_name].append({
|
|
"dll_name": dll_name,
|
|
"func_name": imp_name,
|
|
"func_addr": imp_addr
|
|
})
|
|
|
|
return iat
|
|
|
|
|
|
def get_addr_for(iat, func_name):
|
|
for dll_name in iat:
|
|
for entry in iat[dll_name]:
|
|
if entry["func_name"] == func_name:
|
|
return entry["func_addr"]
|
|
return None
|
|
|
|
|
|
def resolve_iat_capabilities(needed_capabilities, inject_exe):
|
|
pe = pefile.PE(inject_exe)
|
|
iat = extract_iat(pe)
|
|
|
|
print("IAT: ")
|
|
for cap in needed_capabilities:
|
|
needed_capabilities[cap] = {
|
|
"id": None,
|
|
"addr": get_addr_for(iat, cap),
|
|
}
|
|
#print(" {}: {}".format(cap, needed_capabilities[cap]))
|
|
|
|
|
|
|
|
def main():
|
|
pe = pefile.PE(sys.argv[1])
|
|
iat = extract_iat(pe)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main() |