Monday, December 6, 2021

The Emergence of FiveSys, a Malicious Signed Rootkit

One product to protect all your devices, without slowing them down.

Bitdefender security researchers have identified a new Microsoft-signed rootkit, named FiveSys, that somehow got through the verification process and ended up in the wild.

Rootkits used to be all the rage more than a decade ago as a form of malware designed to provide attackers access at a low level in infected operating systems. Some changes by Microsoft, starting with Windows Vista, made the propagation of rootkits much more…

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