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  3. Trojan.Ransomlock.L


Risk Level 1: Very Low

April 30, 2012
October 26, 2012 2:21:33 PM
Also Known As:
Troj/Inject-XI [Sophos]
Infection Length:
60,000 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
Trojan.Ransomlock.L is a Trojan horse that locks the desktop making the computer unusable. It then asks the user to pay to have it unlocked.

For more information, please see the following resource:

Antivirus Protection Dates

  • Initial Rapid Release version April 28, 2012 revision 007
  • Latest Rapid Release version June 6, 2012 revision 018
  • Initial Daily Certified version April 28, 2012 revision 016
  • Latest Daily Certified version June 6, 2012 revision 020
  • Initial Weekly Certified release date May 2, 2012
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


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


  • Damage Level: Medium
  • Payload: Asks the user to pay to unlock the computer.


  • Distribution Level: Low
Note: On May 14, 2015, modifications will be made to the threat write-ups to streamline the content. The Threat Assessment section will no longer be published as this section is no longer relevant to today's threat landscape. The Risk Level will continue to be the main threat risk assessment indicator.
Writeup By: Santiago Cortes

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