A new worm - W32.Mimail.A@mm


A new worm - W32.Mimail.A@mm (English Version Only)

Nov 04, 2003

Communnilink has received many reports of this worm from the wild.

Description
W32.Mimail.A@mm is a worm that spreads by email and steals information from a user's machine. The email has the following characteristics:

Subject Attachment Details
W32.Mimail.A@mm your account [random string] message.zip [Click for details]
W32.Mimail.C@mm Re[2]: our private photos [random string of letters] photos.zip [Click for details]
W32.Mimail.D@mm don't be late! [random string of letters] readnow.zip [Click for details]
W32.Mimail.E@mm don't be late! [random string of letters] readnow.zip [Click for details]

Once the attachment was extracted and run by recipient, the worm will create following files in Windows directory:

NETWATCH.exe - a copy of the worm.
exe.tmp - a temporary copy of the worm.
zip.tmp - a temporary copy of mail attachment ( ex: Photos.zip ).
eml.tmp - list of e-mail address found on infected machine.

And creates a startup key for in System Registry:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\ Run "NetWatch32" = C:\WINNT\NETWATCH.EXE

Solution

New virus definition is available from anti-virus vendors to detect and remove this virus.

If you do not install any anti-virus program, you can download the following removal tools to clean it.

Mcafee
http://vil.nai.com/vil/stinger/

Symantec
http://securityresponse.symantec.com/avcenter/venc/data/w32.mimail.removal.tool.html

Related Link(s)

For more information, please refer to the following websites.

Information from Computer Associates
Information from F-Secure
Information from McAfee
Information from Sophos
Information from Symantec
Information from Trend Micro




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