Threat Description

Sober.X

Details

Aliases:Sober.X, Email-Worm.Win32.Sober.x, W32/Sober.X@mm
Category: Malware
Type:
Platform: W32

Summary



The Sober.X worm was found on November 15th, 2005. This Sober variant is similar to Sober.T, that appeared yesterday:

http://www.f-secure.com/v-descs/sober_t.shtml

Like the previous variants, this one sends itself inside a ZIP archive as an attachment in e-mail messages with English or German texts. We also received several different droppers for this worm variant. They were apparently created by the worm author manually. They are all detected as 'Sober.x'.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



Technical Details



This Sober variant sends a bit different e-mail messages:

Subject:

Wichtig: Meine neue Mail Adresse!

Body:

hi du,,, ike bin et
 Musste mir leider ne neue Mail-Addy machen. Meine alte wird
 nur noch zu gemuellt mit Spam.
 Habe dir auch gleich die Datei mitgeliefert die du immer
 haben wolltest. Ist aber ziemlich per....
 Ok, man sieht sich

Attachment name starts with:

Mail-Datei

---- OR ----

Subject:

Your eMail Password

Body:

Thanks for your registration! Your registration will not be
 complete until you re-confirm it. Please read the following
 agreement. If you accept it, click the Accept to complete
 your registration!

Attachment:

Accept_e-Text.zip

Writeup:



Detection


Sober.X worm is detected with the following F-Secure Anti-Virus updates:
Database: 2005-11-15_04



Description Created: Alexey Podrezov; November 15th, 2005


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