Files
SuperMega/model.py
T

99 lines
2.1 KiB
Python

from typing import Dict
import pehelper
import pefile
from enum import Enum
class AllocStyle(Enum):
RWX = 1
RW_X = 2
REUSE = 3
class ExecStyle(Enum):
CALL = 1,
JMP = 2,
FIBER = 3,
class CopyStyle(Enum):
SIMPLE = 1
class DataRefStyle(Enum):
APPEND = 1
#class InjectStyle(Enum):
class SourceStyle(Enum):
peb_walk = 1
iat_reuse = 2
class Capability():
def __init__(self, name):
self.name = name
self.id: bytes = b""
self.addr: int = 0
def __str__(self):
return "0x{:X}: {} ({})".format(
self.addr,
self.name,
self.id
)
class ExeCapabilities():
def __init__(self, capabilities):
self.capabilities: Dict[str, Capability] = {}
self.image_base = 0
self.text_virtaddr = 0
for cap in capabilities:
self.capabilities[cap] = Capability(cap)
def parse_from_exe(self, filepath):
pe = pefile.PE(filepath)
# image base
self.image_base = pe.OPTIONAL_HEADER.ImageBase
# .text virtual address
for section in pe.sections:
if section.Name.decode().rstrip('\x00') == '.text':
self.text_virtaddr = section.VirtualAddress
# iat
iat = pehelper.extract_iat(pe)
for _, cap in self.capabilities.items():
cap.addr = pehelper.get_addr_for(iat, cap.name)
def get(self, func_name):
if not func_name in self.capabilities:
return None
if self.capabilities[func_name].addr == 0:
return None
return self.capabilities[func_name]
def get_all(self) -> Dict[str, Capability]:
return self.capabilities
def has_all(self):
needs = [ 'GetEnvironmentVariableW', 'VirtualAlloc']
for need in needs:
if not need in self.capabilities:
return False
if self.capabilities[need].addr == 0:
return False
return True
def print(self):
print("--( Capabilities: ")
for _, cap in self.capabilities.items():
print(" " + str(cap))