Noony.A exploits user weakness

PandaLabs has discovered a new type of worm, dubbed Noony.A, that preys on users' penchant for freebies and uses an unconventional means to spread.
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Opt-in for infection
The "opt-out" link contained in many spam messages has long been used as a ploy to confirm whether recipients' email addresses are valid. Now, instead of simply 'opting in' for more spam, it may point to a booby-trapped website.
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