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  3. SymbOS.Zeusmitmo.B


Risk Level 1: Very Low

February 23, 2011
February 24, 2011 7:14:26 AM
Infection Length:
Systems Affected:
Symbian OS
SymbOS.Zeusmitmo.B is a Trojan horse that runs on Symbian Series 60 2nd Edition mobile devices. It opens a back door that allows a remote attacker to steal information from SMS messages received on the compromised device.

Antivirus Protection Dates

  • Initial Rapid Release version February 23, 2011 revision 036
  • Latest Rapid Release version February 19, 2013 revision 016
  • Initial Daily Certified version February 24, 2011 revision 003
  • Latest Daily Certified version February 24, 2011 revision 003
  • Initial Weekly Certified release date March 2, 2011
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: Low
  • Payload: Opens a back door
  • Releases Confidential Info: Steals information from received SMS messages


  • 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: Kaoru Hayashi

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