739441 - Malicious "Social Network Tools" add-on

Status: RESOLVED FIXED

(Toolkit :: Blocklist Policy Requests, defect)

Description

[MarkH]

Attachment: 20120326_niceoutlook.zip (password 'infected')

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.83 Safari/535.11

Steps to reproduce:

Downloaded plugin from http://niceoutlook.net/pp/profile.xpi


Actual results:


Uses http://verybigdays.net/connect.php as an update URL to download the
remote JS and configuration as a JSON blob and stores it in HTML5 local
storage.

This injects inline, base64 encoded JS, a hidden div tag, a hidden iframe,
and a hidden img tracker tag.  The JS and div tag interact to create a
hidden overlay in the top left-hand corner of the webpages viewed by the
user.

The hidden layer is a series of nested tables, with embedded images and
links that are overlaid on the Facebook logo and user menu, clickjacking
the user's actions on Facebook.


Expected results:

It shouldn't inject a hidden layer on top of the web pages used by the viewer to hijack their actions.

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/i78