Update your Norton AntiVirus manually.
http://searchsecurity.techtarget.com/originalContent/0,289142,sid14_gci945056,00.htmlhttp://story.news.yahoo.com/news?tmpl=story&cid=1804&ncid=738&e=6&u=/washpost/20040119/tc_washpost/a29926_2004jan19 "Bagle-A" is circulating in the wild infecting thousand of computers around the globe. It was first discovered yesterday and it is scheduled to self-destruct on January 28. "Bagle" or "Beagle" arrives as an attachment to an e-mail with the subject line "Hi" and "test : ) in the body text. The worm is activated when the user clicks on the attached file. Click here for more information.
The attached file is an executable attachment. When activated, the worm installs a program on the recipient computer that allows the worm to be e-mailed on to other users in the system's local address book. Users who suspect their computers may be infected with the virus should look for a file called bbeagle.exe in their Windows System directory. The file disguises itself with Microsoft familiar calculator icon.
The worm also attempts to install a backdoor or Trojan on infected machine listening for activity on port 6777.