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Posts Tagged ‘64 bit windows’

SophosLabs has been monitoring a new strain of the infamous ZeroAccess rootkit that has been hitting the internet over the last few weeks.ZeroAccess is a sophisticated kernel-mode rootkit that enslaves victim PCs, adding them to a peer-to-peer botnet from which they receive commands to download other malware. The rootkit has undergone several revisions since its […]

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We have recently come across a new wave of W32.Xpaj.B samples. We first met this complex file infector virus in 2009, and since then the threat has been operating and mounting an ad-clicking scam in order to generate revenue. After a few months of rest, the threat seems to be back.   Figure 1. Increase […]

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What was just a theory not so long ago is now being used in-the-wild by threats such as Backdoor.Hackersdoor and its newer variant Backdoor.Conpee. Back in December we analyzed tdpipe.sys, an infected 64-bit Windows 7 system driver. The infection consisted of an extra import added to the driver’s import table: The import named DiscPart from […]

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