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  3. Trojan.Cryptodefense


Risk Level 1: Very Low

March 26, 2014
August 6, 2015 3:38:14 PM
Infection Length:
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.Cryptodefense is a Trojan horse that encrypts files on the compromised computer and then prompts the user to purchase a password in order to decrypt them.

Trojan.Cryptowall is a variant of Trojan.Cryptodefense.

For more information, see our blog:
The dawn of ransomwear: How ransomware could move to wearable devices

Antivirus Protection Dates

  • Initial Rapid Release version March 26, 2014 revision 019
  • Latest Rapid Release version November 29, 2015 revision 025
  • Initial Daily Certified version March 26, 2014 revision 024
  • Latest Daily Certified version November 29, 2015 revision 032
  • Initial Weekly Certified release date April 2, 2014
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Mark Anthony Balanza

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