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W32.Yimfoca

Risk Level 1: Very Low

Discovered:
May 2, 2010
Updated:
April 23, 2012 4:38:25 AM
Also Known As:
Troj/PushBot-U [Sophos]
Type:
Worm
Infection Length:
Varies
Systems Affected:
Windows 2000, Windows 7, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP
W32.Yimfoca is a worm that spreads by sending links through Yahoo! Messenger and displays surveys when popular websites are visited.

For more information, please see the following resources:
Blog entries on W32.Yimfoca

Antivirus Protection Dates

  • Initial Rapid Release version May 1, 2010 revision 034
  • Latest Rapid Release version June 5, 2014 revision 022
  • Initial Daily Certified version May 2, 2010 revision 005
  • Latest Daily Certified version June 5, 2014 revision 032
  • Initial Weekly Certified release date May 5, 2010
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

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

Damage

  • Damage Level: Low
  • Payload: May download additional malware

Distribution

  • Distribution Level: Low
  • Ports: TCP port 2345
  • Target of Infection: Users of Yahoo! Messenger.
Writeup By: Mircea Ciubotariu

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