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W32.Extrat.B

Risk Level 1: Very Low

Discovered:
February 10, 2014
Updated:
February 12, 2014 1:12:14 PM
Type:
Worm
Infection Length:
689529
Systems Affected:
Windows 98, Windows 95, Windows XP, Windows Server 2008, Windows 7, Windows Me, Windows Vista, Windows NT, Windows Server 2003, Windows 2000
CVE References:
CVE-2012-0158
W32.Extrat.B is a worm that spreads by copying itself to removable drives and P2P networks.

Antivirus Protection Dates

  • Initial Rapid Release version February 10, 2014 revision 036
  • Latest Rapid Release version February 12, 2014 revision 008
  • Initial Daily Certified version February 11, 2014 revision 003
  • Latest Daily Certified version February 19, 2014 revision 033
  • Initial Weekly Certified release date February 12, 2014
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: Medium
  • Payload: Opens a back door. Steals information.

Distribution

  • Distribution Level: Medium
  • Shared Drives: Spreads through removable drives.
Writeup By: Nolan Kent

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