Threat Description

Cervivec

Details

Aliases:Cervivec, I-Worm/Cervivec
Category:Malware
Type:Worm
Platform:W32

Summary



Cervivec is a mass-mailer worm written in Delphi. The code body is over 600 kilobytes in size. It collects e-mail addresses from the user's ICQ contact database.



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



The worm installs itself to the Windows System directory as "ntkrnl.exe" and adds a value to the registry to

"Software\Microsoft\Windows\CurrentVersion\Run\Kernel Loader"

to make sure that it will be started when the machine starts up.

It sends e-mail messages in different languages:

"Cau posilam ti cerviky tak se na to podivej (virus to neni)"
 "Cau posielam ti cerviky tak sa na to pozri (virus to neni)"
 "Hallo, Ich habe ein guter Witz-Wurm so sieh! (kein virus)"
 "Hi, I have some cool joke - worms so have a look at it (no virus)"
 "J'ai une bonne blague ca s'appelle verre de terre alors jette un coup d'oeil (il n'y a pas de virusi)"
 "Czesc, mam swietnz dowci te mando los gusanilloes. Pues mirarlos (no es un virus)"
 "Hola te mando los gusanilloes. Puesmirarlos (no es un virus)"


Detection


F-Secure Anti-Virus with the latest updates can detect this worm.



Technical Details: Gergely Erdelyi; F-Secure Corp.; March 22nd, 2002


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