1. Symantec/
  2. Security Response/
  3. W32.HLLW.Tufas


Risk Level 1: Very Low

October 11, 2002
February 13, 2007 11:46:20 AM
Trojan Horse, Worm
Systems Affected:

W32.HLLW.Tufas is a worm that spreads itself through IRC. It also has backdoor capabilities that can give a hacker access to your computer. The threat is written in the Borland Delphi programming language and compressed with UPX. The size is about 627,712 Bytes in length after it is decompressed.

Antivirus Protection Dates

  • Initial Rapid Release version October 11, 2002
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version October 11, 2002
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date October 16, 2002
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Yana Liu

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