Avril Lavigne worm needn't be so complicated- sophos. (Virus Reports).

Sophos has received a number reports of a new worm called Avril or Livra (W32/Avril-A) circulating in the wild. The worm, which is a tribute to Canadian skater Avril Lavigne, will open Microsoft Explorer on her website, www.avril-lavigne.com on the 7th, 11th and 24th of the month. The worm also takes advantage of a year old vulnerability in Microsoft Outlook, which allows it to forward itself to all email addresses in Outlook regardless of whether the email attachment is opened or not.

Amongst the various subject lines the worm'uses is `Fw: Avril Lavigne--the best'. Once the attachment is run, `the worm attempts to disable the users anti-virus software. It also behaves in the 80's film stereotype of viruses, by taking over,the screen with a series of coloured ellipses.

More information about W32/Avril-A can be found at http://www.sophos.com/virusinfolanalyses/ w32avrila.html