1. Symantec/
  2. Security Response/
  3. W32.HLLW.Tang@mm


Risk Level 2: Low

February 17, 2003
February 13, 2007 11:43:10 AM
Also Known As:
W32/Gant@MM [McAfee], I-Worm.Tanger [KAV]
Worm, Virus
Systems Affected:

W32.HLLW.Tang@mm is a mass mailing worm that attempts to disguise itself as a file, which Windows does not recognize. The worm uses the icon of an unregistered file type to perform this.

W32.HLLW.Tang@mm emails itself to all the contacts in the Windows Address Book. It also attempts to spread itself through the file-sharing networks, IRC, Microsoft Word Documents, Microsoft Excel Spreadsheets and across mapped drives.

The worm is written in Microsoft Visual Basic (VB) and is compressed with UPX. The VB run-time libraries must be installed for the worm to be executed.

Antivirus Protection Dates

  • Initial Rapid Release version February 18, 2003
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version February 18, 2003
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date February 19, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Robert X Wang

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