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 Forums >>  Debuggers  >>  Pydbg load() issue

Topic created on: December 16, 2013 08:45 CST by phreak .

Hi all,

I am creating small script for file fuzzing but pydbg load() function not able to load the application with sample file and got hang at dbg.run() function. So please help me out.

Thanks in Advance.

  netw0rm     December 24, 2013 23:33.03 CST
hi

test this sample code :
def detect_overflow(dbg):
if dbg.dbg.u.Exception.dwFirstChance:
return DBG_EXCEPTION_NOT_HANDLED
print "Access Violation Happened!"


def startdbg():

dbg = pydbg()
dbg.load("target.exe")
dbg.set_callback(EXCEPTION_ACCESS_VIOLATION, detect_overflow)
dbg.run()
if __name__ == '__main__':
startdbg()

  phreak     December 25, 2013 14:50.13 CST
Thanks netw0rm for reply.

dbg = pydbg()
dbg.load("target.exe",sample_file)

I am using above code in my fuzzer but the issue is target application get started by the debugger but the sample_file is not load.

Thanks

  netw0rm     December 26, 2013 01:04.02 CST
hi phreak , you must enter your path samplee file with \\  , see a sample in follow :

dbg.load("C:\\Program Files\\r2 Studios\\Xion\\Xion.exe","C:\\Documents and Settings\\netw0rm\\Desktop\\lol.m3u")

  phreak     December 27, 2013 02:33.10 CST
Thanks netw0rm its working !!!!

  phreak     December 27, 2013 11:30.53 CST
Hi netw0rm,

I modified my fuzzer for fuzzing mp3 file and  target appliaction get loaded with sample file now but the file not started in media player ( I have to manually click on play button for start). Please any solution.

Thanks in Advance.

  netw0rm     December 28, 2013 23:58.03 CST
i must see your code or example phreak , plz send your to with private message

  phreak     December 29, 2013 09:53.07 CST
Sure thanks

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