Showing only posts tagged rootkits. Show all posts.

Secure Boot-neutering PKfail debacle is more prevalent than anyone knew

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Enlarge (credit: Getty Images) A supply chain failure that compromises Secure Boot protections on computing devices from across the device-making industry extends to a much larger number of models than previously known, including those used in ATMs, point-of-sale terminals, and voting machines. The debacle was the result of non-production …

Secure Boot is completely broken on 200+ models from 5 big device makers

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Enlarge (credit: sasha85ru | Getty Imates) In 2012, an industry-wide coalition of hardware and software makers adopted Secure Boot to protect against a long-looming security threat. The threat was the specter of malware that could infect the BIOS, the firmware that loaded the operating system each time a computer booted …

Stealthy Linux rootkit found in the wild after going undetected for 2 years

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Enlarge Stealthy and multifunctional Linux malware that has been infecting telecommunications companies went largely unnoticed for two years until being documented for the first time by researchers on Thursday. Researchers from security firm Group-IB have named the remote access trojan “Krasue,” after a nocturnal spirit depicted in Southeast Asian …

Vulnerabilities in Supermicro BMCs could allow for unkillable server rootkits

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Enlarge (credit: Getty Images) If your organization uses servers that are equipped with baseboard management controllers from Supermicro, it’s time, once again, to patch seven high-severity vulnerabilities that attackers could exploit to gain control of them. And sorry, but the fixes must be installed manually. Typically abbreviated as …

Microsoft signing keys keep getting hijacked, to the delight of Chinese threat actors

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Enlarge (credit: Getty Images) In July, security researchers revealed a sobering discovery: hundreds of pieces of malware used by multiple hacker groups to infect Windows devices had been digitally signed and validated as safe by Microsoft itself. On Tuesday, a different set of researchers made a similarly solemn announcement …

Millions of PC motherboards were sold with a firmware backdoor

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Enlarge (credit: BeeBright/Getty Images) Hiding malicious programs in a computer’s UEFI firmware, the deep-seated code that tells a PC how to load its operating system, has become an insidious trick in the toolkit of stealthy hackers. But when a motherboard manufacturer installs its own hidden backdoor in …

New ultra-stealthy Linux backdoor isn’t your everyday malware discovery

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Enlarge (credit: Getty Images / iStock ) Researchers have unearthed a discovery that doesn’t occur all that often in the realm of malware: a mature, never-before-seen Linux backdoor that uses novel evasion techniques to conceal its presence on infected servers, in some cases even with a forensic investigation. On Thursday …

Twelve-Year-Old Linux Vulnerability Discovered and Patched

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It’s a privilege escalation vulnerability : Linux users on Tuesday got a major dose of bad news — a 12-year-old vulnerability in a system tool called Polkit gives attackers unfettered root privileges on machines running most major distributions of the open source operating system. Previously called PolicyKit, Polkit manages system-wide …

Microsoft digitally signs malicious rootkit driver

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Enlarge Microsoft gave its digital imprimatur to a rootkit that decrypted encrypted communications and sent them to attacker-controlled servers, the company and outside researchers said. The blunder allowed the malware to be installed on Windows machines without users receiving a security warning or needing to take additional steps. For …