full-disclosure - SV: JPEG GDI+ (MS04-028) Exploit @ http://home.zccn.net/mm2004

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From: kruse at krusesecurity.dk (Peter Kruse)
Subject: SV: JPEG GDI+ (MS04-028) Exploit @ http://home.zccn.net/mm2004

Hi,

>Hex verified its hxxp://home.zccn.net/mm2004/mu/nc.jpg with payload @
>hxxp://home.zccn.net/mm2004/mu/msmsgs.exe infected by netsnake.h
>trojan (http://www.google.com.sg/search?hl=en&q=netsnake.h)

Indeed. The malware, refered to in the jpg-exploit, was hosted as
"msmsgs.exe" (Netsnake-H) and has now been removed, so infection from that
specific URL, is no longer a threat.

Just thought you might like to know.

However, I did manage to grab a copy of the code. This is actually more a
network worm than a traditional backdoor. When executed Netsnake will drop a
copy of itself as psinthk.dll and iexeplore.exe to the local harddisk
(%windows systemfolder%). Netsnake will spread on IRC networks and also
search for workstations and servers protected by weak passwords. This is not
mentioned in the write-up by Sophos.

Regards
Peetr Kruse
http://www.csis.dk