W32.Bugbear.B
W32.Bugbear.B is a new variant of W32.Bugbear Worm. Its a mass mailing worm
that attempts to email itself to all the email address found in your address
book and files with following extensions .ODS , .MMF, .NCH, .MBX, .EML,
.TBB, .DBX, INBOX and sends an email message with itself as attachment to
all the email addresses.
The email comes with attachment having double extensions.
The worm uses the 'Incorrect MIME Header Vulnerability' which can cause
IE to execute E-mail attachment on an unpatched systems to auto-execute
the worm when reading or previewing an infected message.
On execution it infects most of the popular and commonly used *.exe and
applications. It spreads on local drive as well as in network shared folders.
This worm also drops a backdoor and a Trojan.
Please update your copy using the update provided on 5th June.
If you receive any email with attachments having double extensions then just
DO NOT OPEN OR EXECUTE THE ATTACHMENT.
Delete those mails.
