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Discovered: January 24, 2002
Updated: February 13, 2007 11:51:42 AM
Type: Worm

HLLP.Heybro@mm is a DOS file prepender that prepends itself to files in the \Windows folder that have the .exe extension.

It drops the Energy.VBS file which, when executed, emails itself to the first 100 recipients in the Microsoft Outlook address book on the computer. The email has the following characteristics:

Subject: FWD: Stuff
Rulez :)
-----Original Message-----
> Hi,\
> Thanks for your attendance, here's it.\
> Please let me know if you like it.
> C ya

Attachment: The file name of the attachment varies.

Antivirus Protection Dates

  • Initial Rapid Release version January 25, 2002
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version January 25, 2002
  • Latest Daily Certified version September 28, 2010 revision 036

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.