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  3. Trojan.Osipad


Risk Level 1: Very Low

January 5, 2014
January 14, 2014 9:26:04 AM
Systems Affected:
Windows 7, Windows 8, Windows Vista, Windows XP
Trojan.Osipad is a Trojan horse that hijacks the Web browser on the compromised computer to perform click fraud and display advertisements.

Antivirus Protection Dates

  • Initial Rapid Release version January 6, 2014 revision 002
  • Latest Rapid Release version February 14, 2015 revision 004
  • Initial Daily Certified version January 6, 2014 revision 008
  • Latest Daily Certified version February 15, 2015 revision 001
  • Initial Weekly Certified release date January 8, 2014
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: Performs click fraud and displays popup advertisements.
  • Deletes Files: Deletes web browser cache 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: Nemo Chen

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