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W32.Extrat

Risk Level 2: Low

Discovered:
November 12, 2012
Updated:
November 12, 2012 10:05:37 PM
Type:
Trojan, Worm
Infection Length:
21,504 Bytes
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.Extrat is a worm that spreads by copying itself to removable drives and P2P networks. It also opens a back door and steals information from the compromised computer.

Antivirus Protection Dates

  • Initial Rapid Release version November 12, 2012 revision 009
  • Latest Rapid Release version May 24, 2013 revision 006
  • Initial Daily Certified version November 12, 2012 revision 021
  • Latest Daily Certified version May 24, 2013 revision 009
  • Initial Weekly Certified release date November 14, 2012
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.
  • Releases Confidential Info: Steals information, records keystrokes, and accesses webcam.

Distribution

  • Distribution Level: Medium
  • Shared Drives: Spreads through removable drives and P2P networks.
Writeup By: Paul Mangan
Technical Details

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