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  3. Trojan.Xrupter

Trojan.Xrupter

Risk Level 1: Very Low

Discovered:
March 22, 2009
Updated:
March 22, 2009 10:12:28 AM
Also Known As:
Ransom-F [McAfee], Troj/Fakecor-A [Sophos], W32/Fixer [F-Secure]
Type:
Trojan
Infection Length:
139,264 and 94,208 bytes
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Vista, Windows XP
Trojan.Xrupter is a Trojan horse that encrypts files on the compromised computer.

For more information, please read the following:
An Offer Too Good to Refuse, Courtesy of Vundo

Antivirus Protection Dates

  • Initial Rapid Release version March 22, 2009 revision 001
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version March 22, 2009 revision 005
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date March 25, 2009
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: Moderate

Damage

  • Damage Level: Medium
  • Payload: Downloads a program on to the compromised computer.
  • Modifies Files: Encrypts certain files on the compromised computer.

Distribution

  • Distribution Level: Low
Writeup By: Takayoshi Nakayama

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