755443 - Malicious "Lastest Flash PLayer" add-on

Status: RESOLVED FIXED

(Toolkit :: Blocklist Policy Requests, defect)

Description

[MarkH]

Attachment: 20120515_coollocate.zip (password 'infected')

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.46 Safari/536.5

Steps to reproduce:

Downloaded play.xpi from a third-party website.


Actual results:

Loads overlay.js from the add-on
which loads http://mio98/.hk/j.php
which loads http://mio98/.hk/js_f.php

Overlay.js highlights: 
packed JS
stores its config via the Components.interfaces.nsIPrefService
uses a custom encoding/crypt function to obfuscate the C2 URL
generates a random GUID to uniquely ID victims

j.php highlights:
needs to be called with query params ?u=<guid>&v=0.04&r=<random_num>
injects a <script> tag to load http://mio98.hk/js_f.php?v=0.04

js_f.php highlights:
packed JS
steals tokens/cookies for FB session
supports captcha solving
sets cookies "fb_bbip_*", px_<uid>, "fb_oo1_*"
can use our links, photos, and events apps to post spam
injects ads via an iframe (all hosted on iwanktube.com)
steals Yahoo login creds


Expected results:

It should not steal your cookies/tokens for your Facebook session and then post as you, without your consent.

Comment 1

[Jorge Villalobos [:jorgev] (he/him)]

Id: [e-mail]

Comment 2

[Jorge Villalobos [:jorgev] (he/him)]

Blocked: https://addons.mozilla.org/en-US/firefox/blocked/i92