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Posts Tagged ‘payload’

The winter of 2013 seems to be “zero-day” season. Right after my colleague Haifei Li analyzed the powerful Flash zero day last week, Adobe sent a security alert for another zero-day attack targeting the latest (and earlier) versions of Adobe Reader. Unlike Internet Explorer zero-day exploits that we have seen in the past, this Reader […]

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Could distributed denial of service (DDoS) malware be evolving to defeat anti-DDoS security measures like CloudFlare? We do not usually see a lot of innovative denial-of-service malware in our day-to-day work. What we do see usually boils down to the basic flooding techniques: TCP Syn, UDP and ping floods, and sometimes HTTP-oriented floods. Of course, […]

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The family added to the February release of the Malicious Software Removal Tool is Win32/Sirefef. Win32/Sirefef is a highly prevalent complex multi-component family which continues to evolve. The payload for current variants may include such actions as modifying browser search engine results, generating pay-per-click revenue and performing Bitcoin mining on an affected computer.   The first detection […]

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