1. Symantec/
  2. Security Response/
  3. Linux.DoS.tfn2k.tfn


Risk Level 1: Very Low

February 16, 2000
February 13, 2007 11:33:34 AM
Also Known As:
Tribal Flood Network 2000
Trojan Horse
Systems Affected:
Linux, UNIX, Windows

TFN and TFN2K are not viruses, but attack tools that can be used to perform a distributed DoS attack. TFN and TFN2K can perform various attacks such as UDP flood attacks (similar to Trinoo), ICMP flood attack (similar to Smurf), and TCP SYN flood attacks.

Antivirus Protection Dates

  • Initial Rapid Release version December 18, 2000
  • Latest Rapid Release version August 8, 2016 revision 023
  • Initial Daily Certified version December 18, 2000
  • Latest Daily Certified version August 9, 2016 revision 001
  • Initial Weekly Certified release date pending
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

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STAR Antimalware Protection Technologies
2016 Internet Security Threat Report, Volume 21
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