fileGPS - A Tool That Help You To Guess How Your Shell Was Renamed After The Server-Side Script Of The File Uploader Saved It

When you upload a shell on a web-server using a file upload functionality, usually the file get renamed in various ways in order to prevent direct access to the file, RCE and file overwrite.
fileGPS is a tool that uses various techniques to find the new filename, after the server-side script renamed and saved it.
Some of the techniques used by fileGPS are:
  • Various hash of the filename
  • Various timestamps tricks
  • Filename + PHP time() up to 5 minutes before the start of the script
  • So many more

  • Easy to use
  • Multithreaded
  • HTTP(s) Proxy support
  • User agent randomization
  • Over 100.000 filenames combinations

On BlackArch Linux:
pacman -S filegps
On other distros:
git clone https://github.com/0blio/filegps

How to write a module
Writing a module is fairly simple and allows you to implement your custom ways of generating filename combinations.
Below is a template for your modules:
#!/usr/bin/env python
# -*- coding: utf-8 -*-

Module name: test
Coded by: Your name / nickname
Version: X.X

This module destroy the world.
output = []

# Do some computations here

output = ["filename1.php", "filename2.asp", "filename3.jar"]
The variables url and filename are automatically imported from the core script, so you can call them in your module.
Once you finished to write your module, you have to save it in Modules/, and it will be automatically imported once the main script is started.
You can use the module shame as a template for your modules.

Contribute to the project
Do you want to help? Here's some ways you can do it:
  • Suggest a feature
  • Write a module
  • Report a bug

Email: [email protected]

Special thanks
Special thanks to Panfilo Salutari for sharing with me ideas about the project.
Thanks to Claudio Sala for the logo.

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