I'm following Gray Hat Python book and have copied their code for the process snapshots using PyDBG. When I run the script I get no errors and expected output however my program is not actually reverting to the snapshot. When I go in debug it seems like values are in the snapshot variables as if it is storing snapshot info but I don't really know enough to say for sure.
Here is code:
from pydbg import *
from pydbg.defines import *
import threading
import time
import sys
class snapshotter(object):
def __init__(self,exe_path):
self.exe_path = exe_path
self.pid = None
self.dbg = None
self.running = True
pydbg_thread = threading.Thread(target=self.start_debugger)
pydbg_thread.setDaemon(0)
pydbg_thread.start()
while self.pid == None:
time.sleep(1)
monitor_thread = threading.Thread(target=self.monitor_debugger)
monitor_thread.setDaemon(0)
monitor_thread.start()
def monitor_debugger(self):
while self.running == True:
input = raw_input("Enter: 'snap','restore' or 'quit'")
input = input.lower().strip()
if input == "quit":
print "[*] Exiting the snapshotter."
self.running = False
self.dbg.terminate_process()
elif input == "snap":
print "[*] Suspending all threads."
self.dbg.suspend_all_threads()
print "[*] Obtaining snapshot."
self.dbg.process_snapshot()
print "[*] Resuming operation."
self.dbg.resume_all_threads()
elif input == "restore":
print "[*] Suspending all threads."
self.dbg.suspend_all_threads()
print "[*] Restoring snapshot."
self.dbg.process_restore()
print "[*] Resuming operation."
self.dbg.resume_all_threads()
def start_debugger(self):
self.dbg = pydbg()
pid = self.dbg.load(self.exe_path)
self.pid = self.dbg.pid
self.dbg.run()
exe_path = "C:\\WINDOWS\\System32\\calc.exe"
snapshotter(exe_path)