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YouTube Messaging used to spread Trojan (Jan 09, 2009)

by Security News

SonicWALL UTM Research team observed a new Trojan being spammed starting today Friday, January 09, 2009 via YouTube messaging service. The YouTube message contains a link that claims to be a Video file but points to a new Renos Trojan.

The Trojan is packed with UPX and it performs following activity:

  • Deletes the original copy of the file
  • Downloads malicious files from following URLs:
    • xxxx://89.149.206.82/balamutra.php
    • xxxx://89.149.207.114/cfg/(REMOVED)/video20879.cfg
    • xxxx://94.247.2.117/cfg/(REMOVED)/video20879.cfg
    • xxxx://69.46.16.99/lr/11.php?(REMOVED)
    • xxxx://69.46.16.99/lr/11.php?(REMOVED)
    • xxxx://94.247.2.112/fanta/(REMOVED)
    • xxxx://69.46.16.99/lr/12.php?(REMOVED)
  • Sends POST requests to following URLs:
    • xxxx://89.149.236.200/(REMOVED)/t.gif
    • xxxx://74.50.99.129/1.php

The YouTube message looks like following:


The Trojan is also known as Trojan-Downloader.Win32.Renos , TrojanDownloader:Win32/Renos.gen!BB , and TR/Crypt.XPACK.Gen

SonicWALL Gateway AntiVirus provides protection against this malware via GAV: Renos_21 (Trojan) signature.

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The SonicWall Capture Labs Threat Research Team gathers, analyzes and vets cross-vector threat information from the SonicWall Capture Threat network, consisting of global devices and resources, including more than 1 million security sensors in nearly 200 countries and territories. The research team identifies, analyzes, and mitigates critical vulnerabilities and malware daily through in-depth research, which drives protection for all SonicWall customers. In addition to safeguarding networks globally, the research team supports the larger threat intelligence community by releasing weekly deep technical analyses of the most critical threats to small businesses, providing critical knowledge that defenders need to protect their networks.