The concept of building a fraudulent ecosystem by abusing legitimate services only is nothing new, and as we’ve already seen numerous times throughout the year, malicious attackers are actively embracing it. Bebo, the popular social networking site is currently under attack from spammers that are automatically registering thousands of bogus accounts advertising fake online pharmacies, with the campaign owners receiving revenue through an affiliate based program. The automated registration process is made possible through breaking Bebo’s CAPTCHA in a combination with using bogus email registered in the very same fashion. This isn’t the first time Bebo has been targeted by spammers, and definitely not the last.
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Source: Zero Day Blog