Discovered: January 5, 2007
Updated: January 9, 2007 11:31:15 AM GMT
Type: Worm
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP


W32.Fujacks.E is a worm that spreads by copying itself to network shares protected by weak passwords. It also copies itself to the root drive of all partitions and infects all .exe files found on the local computer. The worm ends some security-related processes and services.


ProtectionVirus Definitions (LiveUpdate™ Daily) January 6, 2007
Virus Definitions (LiveUpdate™ Weekly) January 10, 2007
Virus Definitions (Intelligent Updater) January 6, 2007
Virus Definitions (LiveUpdate™ Plus) January 6, 2007
Threat AssessmentWildWild Level: Low
Number of Infections: 0 - 49
Number of Sites: 0 - 2
Geographical Distribution: Low
Threat Containment: Easy
Removal: Moderate
DamageDamage Level: Medium
Payload: Ends some security-related processes and services.
DistributionDistribution Level: High
Target of Infection: Spreads through network shares protected by weak passwords. It also copies itself to the root drive of all partitions.

Writeup By: Piotr Krysiuk