hw: amd: Instruction raise #VC exception at exit

A vulnerability was found in AMD SEV-SNP, where a malicious hypervisor can potentially break confidentiality and integrity of SEV-SNP on Linux guests by injecting interrupts. An attacker can inject interrupt 0x80, which is used by Linux for legacy 32-bit system calls, and arbitrarily change the...

Linux Systems Under Attack By New RedXOR Malware

Researchers have discovered a new backdoor targeting Linux systems, which they link back to the Winnti threat group. The backdoor is called RedXOR – in part because its network data-encoding scheme is based on the XOR encryption algorithm, and in part because its samples were found on an old...

Researchers Unveil New Linux Malware Linked to Chinese Hackers

Cybersecurity researchers on Wednesday shed light on a new sophisticated backdoor targeting Linux endpoints and servers that's believed to be the work of Chinese nation-state actors. Dubbed "RedXOR" by Intezer, the backdoor masquerades as a polkit daemon, with similarities found between the malwa...