Wiz researchers discovered two Linux vulnerabilities in the Ubuntu kernel that can allow an unprivileged local user to gain elevated privileges. Wiz Research discovered two privilege escalation vulnerabilities, tracked as CVE-2023-2640 and CVE-2023-32629, in the OverlayFS module in the Linux distro Ubuntu. According to the researchers, the flaws impact 40% of the users of the […]
StackRot is s new security vulnerability in the Linux kernel that could be exploited to gain elevated privileges on a target system. A security vulnerability, dubbed StackRot was found impacting Linux versions 6.1 through 6.4. The issue, tracked as CVE-2023-3269, (CVSS score: 7.8), is a privilege escalation issue that resides in the memory management subsystem. An unprivileged […]
Researchers warn of an ongoing Tsunami DDoS botnet campaign targeting inadequately protected Linux SSH servers. Researchers from AhnLab Security Emergency response Center (ASEC) have uncovered an ongoing hacking campaign, aimed at poorly protected Linux SSH servers, to install the Tsunami DDoS botnet (aka Kaiten). The threat actors behind these attacks were also observed installing other […]
Experts noticed that the new Linux ransomware BlackSuit has significant similarities with the Royal ransomware family. Royal ransomware is one of the most notable ransomware families of 2022, it made the headlines in early May 2023 with the attack against the IT systems in Dallas, Texas. The human-operated Royal ransomware first appeared on the threat landscape in September 2022, it has […]
A new Golang remote access trojan (RAT), tracked as GobRAT, is targeting Linux routers in Japan, the JPCERT Coordination Center warns. JPCERT/CC is warning of cyberattacks against Linux routers in Japan that have been infected with a new Golang remote access trojan (RAT) called GobRAT. Threat actors are targeting Linux routers with publicly exposed WEBUI to execute […]
A Linux NetFilter kernel flaw, tracked as CVE-2023-32233, can be exploited by unprivileged local users to escalate their privileges to root. Netfilter is a framework provided by the Linux kernel that allows various networking-related operations to be implemented in the form of customized handlers. Netfilter offers various functions and operations for packet filtering, network address translation, and port translation, which provide the functionality required […]
RTM ransomware-as-a-service (RaaS) started offering locker ransomware that targets Linux, NAS, and ESXi systems. The Uptycs threat research team discovered the first ransomware binary attributed to the RTM ransomware-as-a-service (RaaS) provider. The new variant of the encryptor targets Linux, NAS, and ESXi hosts, it appears to be based on the source code of Babuk ransomware that was […]
China-linked threat actor tracked as Alloy Taurus is using a Linux variant of the PingPull backdoor and a new tool dubbed Sword2033. Researchers from Palo Alto Networks Unit 42 recently observed the China-linked Alloy Taurus group (aka GALLIUM, Softcell) targeting Linux systems with a new variant of PingPull backdoor. While investigating the activity of the group, the […]
Exatrack researchers warn of an unknown China-linked hacking group that has been linked to a new Linux malware, dubbed Mélofée. Cybersecurity researchers from ExaTrack recently discovered a previously undetected malware family, dubbed Mélofée, targeting Linux servers. The researchers linked with high-confidence this malware to China-linked APT groups, in particular the Winnti group. The Mélofée malware includes a […]
New ShellBot DDoS bot malware, aka PerlBot, is targeting poorly managed Linux SSH servers, ASEC researchers warn. AhnLab Security Emergency response Center (ASEC) discovered a new variant of the ShellBot malware that was employed in a campaign that targets poorly managed Linux SSH servers. The ShellBot, also known as PerlBot, is a Perl-based DDoS bot that uses IRC […]