Security News

StripedFly malware framework infects 1 million Windows, Linux hosts
2023-10-26 14:47

A sophisticated cross-platform malware platform named StripedFly flew under the radar of cybersecurity researchers for five years, infecting over a million Windows and Linux systems during that time. Kaspersky discovered the true nature of the malicious framework last year, finding evidence of its activity starting in 2017, with the malware wrongly classified as just a Monero cryptocurrency miner.

BlackCat ransomware uses new ‘Munchkin’ Linux VM in stealthy attacks
2023-10-19 21:40

The introduction of Munchkin to BlackCat's already extensive and advanced arsenal makes the RaaS more attractive to cybercriminals seeking to become ransomware affiliates. After compromising a device, the threat actors install VirtualBox and create a new virtual machine using the Munchkin ISO. This Munchkin virtual machine includes a suite of scripts and utilities that allow the threat actors to dump passwords, spread laterally on the network, build a BlackCat 'Sphynx' encryptor payload, and execute programs on network computers.

Qubitstrike attacks rootkit Jupyter Linux servers to steal credentials
2023-10-18 10:00

Hackers are scanning for internet-exposed Jupyter Notebooks to breach servers and deploy a cocktail of malware consisting of a Linux rootkit, crypto miners, and password-stealing scripts. In a new campaign called 'Qubitstrike,' the threat actors download malicious payloads to hijack a Linux server for cryptomining and to steal credentials for cloud services, such as AWS and Google Cloud.

ShellBot Uses Hex IPs to Evade Detection in Attacks on Linux SSH Servers
2023-10-12 11:27

The threat actors behind ShellBot are leveraging IP addresses transformed into its hexadecimal notation to infiltrate poorly managed Linux SSH servers and deploy the DDoS malware. "The overall...

Researcher bags two-for-one deal on Linux bugs while probing GNOME component
2023-10-10 16:01

Cue files - which store the metadata that defines the layout of music on a CD. Given that it's often used alongside the FLAC audio format, open source audio players like Audacious are dependent on the library. The tracker-miners application initializes automatically when a file is either added or modified in a subdirectory of the home directory.

libcue Library Flaw Opens GNOME Linux Systems Vulnerable to RCE Attacks
2023-10-10 06:50

A new security flaw has been disclosed in the libcue library impacting GNOME Linux systems that could be exploited to achieve remote code execution (RCE) on affected hosts. Tracked as...

GNOME Linux systems exposed to RCE attacks via file downloads
2023-10-09 20:24

A memory corruption vulnerability in the open-source libcue library can let attackers execute arbitrary code on Linux systems running the GNOME desktop environment. Libcue, a library designed for parsing cue sheet files, is integrated into the Tracker Miners file metadata indexer, which is included by default in the latest GNOME versions.

Exploits released for Linux flaw giving root on major distros
2023-10-05 19:44

Proof-of-concept exploits have already surfaced online for a high-severity flaw in GNU C Library's dynamic loader, allowing local attackers to gain root privileges on major Linux distributions. One of these PoC exploits, confirmed as working by vulnerability and exploit expert Will Dormann, was released by independent security researcher Peter Geissler earlier today.

“Looney Tunables” bug allows root access on Linux distros (CVE-2023-4911)
2023-10-05 13:06

A vulnerability in the GNU C Library can be exploited by attackers to gain root privileges on many popular Linux distributions, according to Qualys researchers. Dubbed "Looney Tunables", CVE-2023-4911 is a buffer overflow vulnerability in the dynamic loader's processing of the GLIBC TUNABLES environment variable.

Make-me-root 'Looney Tunables' security hole on Linux needs your attention
2023-10-04 21:27

The flaw, dubbed Looney Tunables, arises from the GNU C Library's dynamic loader mishandling of the GLIBC TUNABLES environmental variable. Because GNU C Library, commonly known as glibc, is found in most Linux systems, this is something of an issue.