TDL4 bootkit reinstates 64-bit infection capability «Microsoft released security update KB2506014 on April 12 to address a vulnerability which allowed unsigned drivers to be loaded by 64-bit Windows. The TDSS/Alureon rootkit family, where TDL4 is a part of, was one of the more advanced rootkits that abused this vulnerability to load the rootkit during Windows boot up. TDL4 is also known as the Google Redirect Virus.
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