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Over the past few months, the number of worms that target or propagate via Microsoft Outlook (including Outlook Express) have increased dramatically. Several of these worms have payloads that may have already been activated. It's critically important that you install and run some type of antiviral software and regularly update it.If you're using Outlook, this becomes even more important.
Below is a list of the most current worms that either propagate via Outlook or affect Outlook users directly. Links to additional information are also provided:
W32.Mypics.Worm - New and particularly nasty. Propagates only via Outlook and formats the hard drive. Payload delivery scheduled for any time in 2000. http://www.symantec.com/avcenter/venc/data/w32.mypics.worm.html
Worm.ExploreZip(pack) - Propagates by attacking all MAPI-capable email programs on Windows systems (including Outlook), then destroys all files containing any of the following extensions: .h, .c, .cpp, .asm, .doc, .xls, .ppt http://www.symantec.com/avcenter/venc/data/worm.explorezip.pack.html
VBS.BubbleBoy (see BubbleBoy Virus article in this issue) Propagates only via Outlook. http://www.symantec.com/avcenter/venc/data/vbs.bubbleboy.html
W97M.Pri.Q/W97M.Prilissa.A Propagates only via Outlook and attacks Word documents. http://www.symantec.com/avcenter/venc/data/w97m.prilissa.a.html
W97M.Melissa.U (Gen1) Propagates via Outlook only. http://www.symantec.com/avcenter/venc/data/w97m.melissa.u.gen1.html
W97M.Melissa.AA Propagates via Outlook only. http://www.symantec.com/avcenter/venc/data/w97m.melissa.aa.html