Pierluigi Paganini
April 28, 2025
Researchers created a PoC rootkit called Curing that uses Linuxâs io_uring feature to evade traditional system call monitoring. Armo researchers have demonstrated a proof-of-concept (PoC) rootkit named Curing that relies on Linux asynchronous I/O mechanism io_uring to bypass traditional system call monitoring. “Curing is a POC of a rootkit that uses io_uring to perform different tasks without using any syscalls, […]
Pierluigi Paganini
April 10, 2025
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Linux Kernel flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Linux Kernel flaws, respectively tracked as CVE-2024-53197 and CVE-2024-53150, to its Known Exploited Vulnerabilities (KEV) catalog. The vulnerability CVE-2024-53197 (CVSS score of 7.8) resides in the Linux kernel’s ALSA USB-audio driver affecting Extigy […]
Pierluigi Paganini
March 17, 2025
A researcher released a free decryptor for Linux Akira ransomware, using GPU power to recover keys through brute force. Security researcher Yohanes Nugroho created a free decryptor for Linux Akira ransomware, using GPUs to brute force the decryption keys. Initially estimating a week, the project took three weeks and cost $1,200 in GPU resources due […]
Pierluigi Paganini
February 05, 2025
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Linux kernel vulnerability to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a Linux kernel vulnerability, tracked as CVE-2024-53104, to its Known Exploited Vulnerabilities (KEV) catalog. The February 2025 Android security updates addressed 48 vulnerabilities, the zero-day flaw CVE-2024-53104 which is actively exploited in attacks […]
Pierluigi Paganini
December 03, 2024
The ‘Bootkitty’ Linux UEFI bootkit exploits the LogoFAIL flaws (CVE-2023-40238) to target systems using vulnerable firmware. Cybersecurity researchers from ESET recently discovered the first UEFI bootkit designed to target Linux systems, called by its authors Bootkitty. The bootkit allows attackers to disable the kernelâs signature verification feature and to preload two as yet unknown ELF […]
Pierluigi Paganini
November 27, 2024
ESET discovered the first Unified Extensible Firmware Interface (UEFI) bootkit specifically designed for Linux systems, named Bootkitty. Cybersecurity researchers from ESET discovered the first UEFI bootkit designed to target Linux systems, called by its authors Bootkitty. The bootkit allows attackers to disable the kernelâs signature verification feature and to preload two as yet unknown ELF […]
Pierluigi Paganini
November 23, 2024
China-linked APT Gelsemium has been observed using a new Linux backdoor dubbed WolfsBane in attacks targeting East and Southeast Asia. China-linked APT Gelsemium has deployed a previously unknown Linux backdoor, WolfsBane, in attacks targeting East and Southeast Asia, according to ESET. Victims include entities in Taiwan, the Philippines, and Singapore, as seen in VirusTotal samples from […]
Pierluigi Paganini
November 21, 2024
Decade-old flaws in the needrestart package in Ubuntu Server could allow local attackers to gain root privileges without user interaction. The Qualys Threat Research Unit (TRU) discovered five Local Privilege Escalation (LPE) decade-old security vulnerabilities in the needrestart package that could allow a local attacker to gain root privileges without requiring user interaction. The needrestart […]
Pierluigi Paganini
October 15, 2024
North Korea-linked actors deploy a new Linux variant of FASTCash malware to target financial systems, researcher HaxRob revealed. The cybersecurity researcher HaxRob analyzed a new variant of the FASTCash “payment switch” malware which targets Linux systems. The variant discovered by the researcher was previously unknown and targets Ubuntu 22.04 LTS distributions. In November 2018, Symantec […]
Pierluigi Paganini
October 04, 2024
perfctl malware targets misconfigured Linux servers to deploy cryptocurrency miners and proxyjacking software in an ongoing campaign. Aqua Nautilus researchers shed light on a Linux malware, dubbed perfctl malware, that over the past 3-4 years targeted misconfigured Linux servers. The malicious code was used to drop cryptocurrency miners and proxyjacking software. Perfctl is an elusive […]
