joshuark writes: Dan Goodin of Ars Technica reports that security researchers have found that rootkits for Unified Extensible Firmware Interface (UEFI) are not rare, and difficult to detect. Kaspersky researchers profiled CosmicStrand, the security firm’s name for a sophisticated UEFI rootkit that the company detected and obtained through its antivirus software. They state: “The most striking aspect of this report is that this UEFI implant seems to have been used in the wild since the end of 2016 — long before UEFI attacks started being publicly described.” The researchers warned that “the multiple rootkits discovered so far evidence a blind spot in our industry that needs to be addressed sooner rather than later.”

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