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WORM_KOOBFACE.F
Overview

Malware type: Worm

Aliases: No Alias Found

In the wild: Yes

Destructive: No

Language: English

Platform: Windows 98, ME, NT, 2000, XP, Server 2003

Encrypted: No

Overall risk rating:


Reported infections:

Damage potential:

Medium

Distribution potential:

Medium

Description: 

To get a one-glance comprehensive view of the behavior of this malware, refer to the Behavior Diagram shown below.

WORM_KOOBFACE.F Behavior Diagram

Malware Overview

This worm may be dropped by other malware. It may be downloaded unknowingly by a user when visiting malicious Web sites.

Upon execution, it drops a copy of itself. It displays a message box to trick users into thinking that it did not execute properly. It accesses the Google Web site to check for an Internet connection.

It creates a registry entry to enable its automatic execution at every system startup. It also drops non-malicious files.

This worm checks if the user has visited the social networking Web site Facebook by searching for cookies with a certain string. If it finds the said string, it adds links to the affected user's profile that points to a copy of this worm. It deletes itself if no cookies that refer to Facebook are found.

For additional information about this threat, see:
Solution
Technical Details

Description created: Aug. 13, 2008 6:33:31 PM GMT -0800

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