Information about the virus is incomplete, but unlike other recent ones, this one seems very detectable. With incoming mail messages containing the virus:
the subject will be one of these:
Re:
Movies
Re:
Sample
Re:
Document
Re:
Here is that sample
The attachment will be one of these:
Movie_0074.mpeg.pif
Document003.pif
Untitled1.pif
Sample.pif
There does not appear to be a message body.
The sender may be big@boss.com, but this could vary.
If you receive an E-mail message with any of the subjects above, or
containing any of the attachments above, DELETE it at
once. If possible, do not even open it for inspection.
Just
highlight it with one click and DELETE it. Whatever you do, DO NOT
open the attachment!
McAfee and Norton anti-virus software users should be protected against this new viral worm if they download/update their virus definitions files to the latest definitions. It is suggested that you do this IMMEDIATELY.
Further detailed information about this virus may be found at:
http://vil.mcafee.com/dispVirus.asp?virus_k=99950
or
http://www.symantec.com/avcenter/venc/data/w32.sobig.a@mm.html