Norton.com > Viruses & Risks > Backdoor.Matsnu.B

Backdoor.Matsnu.B

Risk Level 1: Very Low

Discovered:
April 17, 2013
Updated:
June 6, 2013 11:52:14 AM
Also Known As:
Trojan.Ransomlock.P [Symantec]
Type:
Trojan
Infection Length:
Between 31,923 bytes and 164,864 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
Backdoor.Matsnu.B is a Trojan horse that opens a back door on the compromised computer.

Note: Virus definitions dated April 17, 2013 or earlier may detect this threat as Trojan.Ransomlock.P.

Antivirus Protection Dates

  • Initial Rapid Release version April 17, 2013 revision 038
  • Latest Rapid Release version June 24, 2014 revision 006
  • Initial Daily Certified version April 18, 2013 revision 005
  • Latest Daily Certified version August 23, 2013 revision 017
  • Initial Weekly Certified release date April 24, 2013
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: High
  • Payload: Opens a back door on the compromised computer.
  • Deletes Files: May delete the contents of the hard drive.

Distribution

  • Distribution Level: Low
Writeup By: Masaki Suenaga

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