From: Marco Monicelli (marco.monicelli@marcegaglia.com)
Date: Thu Oct 27 2005 - 03:01:57 EDT
Dear Alex,
that is not really a simple trojan.... it's a Windows Rootkit and its name
is Hackdefender. You can gather many usefull information about it on
www.rootkits.com. It's a smart rootkit which uses a technique based on
changing words inside the rootkit's files in order to fool AV. And I must
admit it does the job pretty good but it's now too famous around so AV
should be now updated to recognize it or at least a standard version (it
can be customized to become undetected).
For your fun and knowledge, here's a link to a AVI file which shows you how
it beats the AV defences.
http://rapidshare.de/files/6816080/hxdef_defeating_modern_detectors.rar.html
Cheers
Yog-Sotho
After installing October's MS Malicious Software Removal tool, a
couple of server, one behing a Sonicwall TZ170 firewall have shown he
presence of Win32/Hackdef.E and Win32/Hackdef.T. The MS tools they
have been removed.
Has anyone had any experience with that trojan in terms of detecting
payload etc? Is there a security scanner to check for that specific
vulnerability?
Thanks
Alex
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