linux | Breaking Cybersecurity News | The Hacker News

This week's cyber world is like a big spy movie. Hackers are breaking into other hackers' setups, sneaky malware is hiding in popular software, and AI-powered scams are tricking even the smartest of us. On the other side, the good guys are busting secret online markets and kicking out shady chat rooms, while big companies rush to fix new security holes before attackers can jump in. Want to know who's hacking who, how they're doing it, and what's being done to fight back? Stick around—this recap has the scoop. ⚡ Threat of the Week Turla Hackers Hijack Pakistan Hackers' Infrastructure — Imagine one hacker group sneaking into another hacker group 's secret hideout and using their stuff to carry out their own missions. That's basically what the Russia-linked Turla group has been doing since December 2022. They broke into the servers of a Pakistani hacking team called Storm-0156 and used those servers to spy on government and military targets in Afghanistan and India. By doing th...

Ever wonder what happens in the digital world every time you blink? Here's something wild - hackers launch about 2,200 attacks every single day, which means someone's trying to break into a system somewhere every 39 seconds. And get this - while we're all worried about regular hackers, there are now AI systems out there that can craft phishing emails so convincingly, that even cybersecurity experts have trouble spotting them. What's even crazier? Some of the latest malware is like a digital chameleon - it literally watches how you try to catch it and changes its behavior to slip right past your defenses. Pretty mind-bending stuff, right? This week's roundup is packed with eye-opening developments that'll make you see your laptop in a whole new light. ⚡ Threat of the Week T-Mobile Spots Hackers Trying to Break In: U.S. telecom service provider T-Mobile caught some suspicious activity on their network recently - basically, someone was trying to sneak into th...

Vulnerability Management (VM) has long been a cornerstone of organizational cybersecurity. Nearly as old as the discipline of cybersecurity itself, it aims to help organizations identify and address potential security issues before they become serious problems. Yet, in recent years, the limitations of this approach have become increasingly evident.  At its core, Vulnerability Management processes remain essential for identifying and addressing weaknesses. But as time marches on and attack avenues evolve, this approach is beginning to show its age. In a recent report, How to Grow Vulnerability Management into Exposure Management (Gartner, How to Grow Vulnerability Management Into Exposure Management, 8 November 2024, Mitchell Schneider Et Al.), we believe Gartner® addresses this point precisely and demonstrates how organizations can – and must – shift from a vulnerability-centric strategy to a broader Exposure Management (EM) framework. We feel it's more than a worthwhile read an...

Cybersecurity researchers have shed light on what has been described as the first Unified Extensible Firmware Interface (UEFI) bootkit designed for Linux systems. Dubbed Bootkitty by its creators who go by the name BlackCat, the bootkit is assessed to be a proof-of-concept (PoC) and there is no evidence that it has been put to use in real-world attacks. Also tracked as IranuKit , it was uploaded to the VirusTotal platform on November 5, 2024. "The bootkit's main goal is to disable the kernel's signature verification feature and to preload two as yet unknown ELF binaries via the Linux init process (which is the first process executed by the Linux kernel during system startup)," ESET researchers Martin Smolár and Peter Strýček said . The development is significant as it heralds a shift in the cyber threat landscape where UEFI bootkits are no longer confined to Windows systems alone . It's worth noting that Bootkitty is signed by a self-signed certificate, a...

The China-aligned advanced persistent threat (APT) actor known as Gelsemium has been observed using a new Linux backdoor dubbed WolfsBane as part of cyber attacks likely targeting East and Southeast Asia. That's according to findings from cybersecurity firm ESET based on multiple Linux samples uploaded to the VirusTotal platform from Taiwan, the Philippines, and Singapore in March 2023. WolfsBane has been assessed to be a Linux version of the threat actor's Gelsevirine backdoor, a Windows malware put to use as far back as 2014. Also discovered by the company is another previously undocumented implant named FireWood that's connected to a different malware toolset known as Project Wood . FireWood has been attributed to Gelsemium with low confidence, given the possibility that it could be shared by multiple China-linked hacking crews. "The goal of the backdoors and tools discovered is cyber espionage targeting sensitive data such as system information, user crede...

Multiple decade-old security vulnerabilities have been disclosed in the needrestart package installed by default in Ubuntu Server (since version 21.04) that could allow a local attacker to gain root privileges without requiring user interaction. The Qualys Threat Research Unit (TRU), which identified and reported the flaws early last month, said they are trivial to exploit, necessitating that users move quickly to apply the fixes. The vulnerabilities are believed to have existed since the introduction of interpreter support in needrestart 0.8 , which was released on April 27, 2014. "These needrestart exploits allow Local Privilege Escalation (LPE) which means that a local attacker is able to gain root privileges," Ubuntu said in an advisory, noting they have been addressed in version 3.8. "The vulnerabilities affect Debian, Ubuntu, and other Linux distributions." Needrestart is a utility that scans a system to determine the services that need to be restarted a...

Cybersecurity researchers have shed light on a Linux variant of a relatively new ransomware strain called Helldown, suggesting that the threat actors are broadening their attack focus. "Helldown deploys Windows ransomware derived from the LockBit 3.0 code," Sekoia said in a report shared with The Hacker News. "Given the recent development of ransomware targeting ESX, it appears that the group could be evolving its current operations to target virtualized infrastructures via VMware." Helldown was first publicly documented by Halcyon in mid-August 2024, describing it as an "aggressive ransomware group" that infiltrates target networks by exploiting security vulnerabilities. Some of the prominent sectors targeted by the cybercrime group include IT services, telecommunications, manufacturing, and healthcare. Like other ransomware crews, Helldown is known for leveraging data leak sites to pressure victims into paying ransoms by threatening to publish s...

Cybersecurity researchers have flagged a new malware campaign that infects Windows systems with a Linux virtual instance containing a backdoor capable of establishing remote access to the compromised hosts. The "intriguing" campaign, codenamed CRON#TRAP , starts with a malicious Windows shortcut (LNK) file likely distributed in the form of a ZIP archive via a phishing email. "What makes the CRON#TRAP campaign particularly concerning is that the emulated Linux instance comes pre-configured with a backdoor that automatically connects to an attacker-controlled command-and-control (C2) server," Securonix researchers Den Iuzvyk and Tim Peck said in an analysis. "This setup allows the attacker to maintain a stealthy presence on the victim's machine, staging further malicious activity within a concealed environment, making detection challenging for traditional antivirus solutions." The phishing messages purport to be an "OneAmerica survey" th...

North Korean threat actors have been observed using a Linux variant of a known malware family called FASTCash to steal funds as part of a financially-motivated campaign. The malware is "installed on payment switches within compromised networks that handle card transactions for the means of facilitating the unauthorized withdrawal of cash from ATMs," a security researcher who goes by HaxRob said . FASTCash was first documented by the U.S. government in October 2018 as used by adversaries linked to North Korea in connection with an ATM cashout scheme targeting banks in Africa and Asia since at least late 2016. "FASTCash schemes remotely compromise payment switch application servers within banks to facilitate fraudulent transactions," the agencies noted at the time. "In one incident in 2017, HIDDEN COBRA actors enabled cash to be simultaneously withdrawn from ATMs located in over 30 different countries. In another incident in 2018, HIDDEN COBRA actors enab...

A suspected nation-state adversary has been observed weaponizing three security flaws in Ivanti Cloud Service Appliance (CSA) a zero-day to perform a series of malicious actions. That's according to findings from Fortinet FortiGuard Labs, which said the vulnerabilities were abused to gain unauthenticated access to the CSA, enumerate users configured in the appliance, and attempt to access the credentials of those users. "The advanced adversaries were observed exploiting and chaining zero-day vulnerabilities to establish beachhead access in the victim's network," security researchers Faisal Abdul Malik Qureshi, John Simmons, Jared Betts, Luca Pugliese, Trent Healy, Ken Evans, and Robert Reyes said . The flaws in question are listed below - CVE-2024-8190 (CVSS score: 7.2) - A command injection flaw in the resource /gsb/DateTimeTab.php CVE-2024-8963 (CVSS score: 9.4) - A path traversal vulnerability on the resource /client/index.php CVE-2024-9380 (CVSS score:...

Misconfigured and vulnerable Linux servers are the target of an ongoing campaign that delivers a stealthy malware dubbed perfctl with the primary aim of running a cryptocurrency miner and proxyjacking software. "Perfctl is particularly elusive and persistent, employing several sophisticated techniques," Aqua security researchers Assaf Morag and Idan Revivo said in a report shared with The Hacker News. "When a new user logs into the server, it immediately stops all 'noisy' activities, lying dormant until the server is idle again. After execution, it deletes its binary and continues to run quietly in the background as a service." It's worth noting that some aspects of the campaign were disclosed last month by Cado Security, which detailed an activity cluster that targets internet-exposed Selenium Grid instances with both cryptocurrency mining and proxyjacking software. Specifically, the fileless perfctl malware has been found to exploit a security ...

A new set of security vulnerabilities has been disclosed in the OpenPrinting Common Unix Printing System ( CUPS ) on Linux systems that could permit remote command execution under certain conditions. "A remote unauthenticated attacker can silently replace existing printers' (or install new ones) IPP urls with a malicious one, resulting in arbitrary command execution (on the computer) when a print job is started (from that computer)," security researcher Simone Margaritelli said . CUPS is a standards-based, open-source printing system for Linux and other Unix-like operating systems, including ArchLinux, Debian, Fedora, Red Hat Enterprise Linux (RHEL), ChromeOS, FreeBSD, NetBSD, OpenBSD, openSUSE, and SUSE Linux. The list of vulnerabilities is as follows - CVE-2024-47176 - cups-browsed <= 2.0.1 binds on UDP INADDR_ANY:631 trusting any packet from any source to trigger a Get-Printer-Attributes IPP request to an attacker-controlled URL CVE-2024-47076 - libcupsfil...