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 …

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 …

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 …

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 …

Kaspersky is reporting on a new UFEI rootkit that survives reinstalling the operating system and replacing the hard drive. From an article : The firmware compromises the UEFI, the low-level and highly opaque chain of firmware required to boot up nearly every modern computer. As the software that bridges a …

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 …

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 …

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 …