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  3. Trojan.Chikdos.A


Risk Level 1: Very Low

December 16, 2013
April 14, 2014 1:17:01 PM
Also Known As:
Troj/Agent-AGSK [Sophos]
Infection Length:
579,584 bytes
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Vista, Windows XP
Trojan.Chikdos.A is a Trojan horse that allows a remote attacker to use the compromised computer to launch distributed denial-of-service (DDoS) attacks.

Antivirus Protection Dates

  • Initial Rapid Release version December 16, 2013 revision 040
  • Latest Rapid Release version March 29, 2015 revision 003
  • Initial Daily Certified version December 17, 2013 revision 003
  • Latest Daily Certified version March 29, 2015 revision 020
  • Initial Weekly Certified release date December 18, 2013
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 distributed denial of service attacks.


  • 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: Takashi Katsuki

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