Threat Description



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


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

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'.


Automatic action

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


More information on scanning and removal options available in your F-Secure product can be found in the Help Center.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

Contact Support

For further assistance, F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.

Technical Details

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


Wichtig: Meine neue Mail Adresse!  


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:


---- OR ----


Your eMail Password  


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!  



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

Description Details: Alexey Podrezov; November 15th, 2005


Suspect a file or URL was wrongly detected? Submit a sample to our Labs for analysis

Submit Now

Give And Get Advice

Give advice. Get advice. Share the knowledge on our free discussion forum.

Learn More