W32.Yalove.F

Name W32.Yalove.F
Type Worm
Affected Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Vista, Windows XP
Risk Level 1: Very Low
Discovered January 28, 2008
Update January 29, 2008 1:17:50 AM
Length 27,136 bytes
Virus Info W32.Yalove.F is a worm that spreads through Yahoo! Instant Messenger and by copying itself to all drives. The worm may attempt to download remote files on the compromised computer and disable Windows Task Manager and Registry tools.

Threat Assessment

Wild

  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Moderate
  • Removal: Easy

Damage

  • Damage Level: Low
  • Payload: Spreads through Yahoo! Instant Messenger and by copying itself to all drives.
  • Degrades Performance: Attempts to download remote files on the compromised computer which may degrade performance.
  • Compromises Security Settings: Disables Windows Task Manager and Registry tools.

Distribution

  • Distribution Level: Low
  • Shared Drives: Copies itself to all drives.
  • Target of Infection: Yahoo! Instant messenger and all drives on the compromised computer.
Writeup By: Andrea Lelli and Hyun Choi
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