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Trojan.Ransomlock

Risk Level 1: Very Low

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Discovered: April 15, 2009
Updated: April 15, 2009 4:22:57 PM
Also Known As: Trojan:W32/Agent.AF [F-Secure]
Type: Trojan
Infection Length: 109,568 bytes
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows Vista, Windows XP

Trojan.Ransomlock is a Trojan horse that locks the desktop making the computer unusable.

For more information, please read the following:
SMS Ransomware Threat
The Key(generator) to the SMS Ransomware Threat

Protection

  • Initial Rapid Release version April 15, 2009 revision 016
  • Latest Rapid Release version September 28, 2009 revision 007
  • Initial Daily Certified version April 15, 2009 revision 016
  • Latest Daily Certified version September 28, 2009 revision 022
  • Initial Weekly Certified release date April 15, 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: Easy

Damage

  • Damage Level: Low
  • Payload: Locks the desktop making the system unusable. Also displays a message with Russian text.

Distribution

  • Distribution Level: Low

Writeup By: Andrea Lelli
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