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  3. Trojan.Exprez.B


Risk Level 1: Very Low

June 12, 2012
November 16, 2012 11:53:56 AM
Trojan, Virus
Infection Length:
Systems Affected:
Windows 2000, Windows 7, Windows Vista, Windows XP
Trojan.Exprez.B is a Trojan horse that infects .exe, .doc, and .docx files on the compromised computer.

Antivirus Protection Dates

  • Initial Rapid Release version June 12, 2012 revision 023
  • Latest Rapid Release version July 24, 2013 revision 034
  • Initial Daily Certified version June 12, 2012 revision 035
  • Latest Daily Certified version July 25, 2013 revision 003
  • Initial Weekly Certified release date June 20, 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: Low
  • Modifies Files: Infects .exe, .doc, and .docx files.


  • 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: Branko Spasojevic

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