Computer virus companies spent yesterday scampering to develop defensesfor the newest strain of the MyDoom virus, dubbed MyDoom.O. By midmorning yesterday, thousands of e-mail inboxes were filling up withMyDoom.O subject lines — and even specifically forged e-mail header information– designed to encourage opening.
This latest MyDoom worm variant of the original MyDoom family was spreading more quicklythan its MyDoom cousins because of human gullibility, according to computersecurity experts.
“This one is much more successful in looking like a bounced or returnede-mail message,” Charles Kaplan, managed security services informationsecurity officer at VeriSign, told TechNewsWorld.
MyDoom.O is much more clever in imitating the kind of notificationmessages computer users are used to getting when their messages arereturned as undeliverable.