Persistant 'zombie' attacks target systems protected by corporate editions of Symantec antivirus

Once again, it really pays to keep your virus protection updated. A new worm, which seems to be a spybot variant, works on a flaw found in older versions of Symantec antivirus for corporations. While personal editions of the software are not affected, any corporation running an older version of Symantec Norton will be vulnerable to the worm. The worm turns whatever it infects into a "zombie" PC, which only serves to copy and send the virus. Symantec had a fix for the problem on May 25th, but not all users downloaded it. Symantec is re-evaluating it's patch/virus definition distribution method.