Cybercriminals deployed an Adobe Flash Player zero-day exploit embedded in online ads for close to two months in an attack that targeted US users with a ransomware payload. The use-after-free vulnerability, CVE 2015-0313, was patched by Adobe on Feb. 2, and the day after, the attack campaign came to a screeching halt, according to researchers at Malwarebytes, which traced the zero-day’s lifecycle after their systems detected the attacks in December of last year. The attackers injected the malware-ridden ads on the websites of Dailymotion, Huffington Post, answers.com, New York Daily News, HowToGeek.com, tagged.com, as well as a handful of other sites.
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