Review: Learning Kali Linux, 2nd Edition 2025-06-16 at 07:32 By Mirko Zorz Kali Linux has long been the go-to operating system for penetration testers and security professionals, and Learning Kali Linux, 2nd Edition by Ric Messier aims to guide readers through its core tools and use cases. This updated edition introduces new material on digital […]
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The Windows Subsystem for Linux goes open source 2025-05-20 at 12:47 By Anamarija Pogorelec Microsoft has officially open-sourced the Windows Subsystem for Linux (WSL), closing the very first issue ever filed on the Microsoft/WSL GitHub repository: “Will this be open source?” WSL allows developers to run unmodified Linux command-line tools, utilities, and applications directly on […]
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Containers are just processes: The illusion of namespace security 2025-05-20 at 08:31 By Help Net Security In the early days of commercial open source, major vendors cast doubt on its security, claiming transparency was a flaw. In fact, that openness fueled strong communities and faster security improvements, making OSS often more secure than proprietary code. […]
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Nobara Linux 42 brings performance boost and better hardware support 2025-05-14 at 12:08 By Help Net Security The Nobara Project has released a new version of its Linux distribution, bringing updated packages, performance improvements, and a few visual tweaks aimed at making life easier for users who want a system that works well out of […]
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Avocado OS: Open-source Linux platform for embedded systems 2025-04-28 at 15:32 By Industry News Peridio, a platform for building and maintaining advanced embedded products, has launched Avocado OS, an open-source embedded Linux distribution made to simplify the way developers build complex embedded systems. Avocado OS focuses on delivering a smooth developer experience while offering security, […]
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Review: The Ultimate Kali Linux Book, Third Edition 2025-04-10 at 07:31 By Mirko Zorz Packed with real-world scenarios, hands-on techniques, and insights into widely used tools, the third edition of the bestselling Ultimate Kali Linux Book offers a practical path to learning penetration testing with Kali Linux. About the author Glen D. Singh, a seasoned […]
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Kunai: Open-source threat hunting tool for Linux 2025-02-19 at 08:19 By Mirko Zorz Kunai is an open-source tool that provides deep and precise event monitoring for Linux environments. “What sets Kunai apart is its ability to go beyond simple event generation. While most security monitoring tools rely on syscalls or kernel function hooking, Kunai takes […]
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Don’t let these open-source cybersecurity tools slip under your radar 2025-01-27 at 07:07 By Help Net Security This article showcases free, open-source cybersecurity tools that help you identify and address vulnerabilities, detect intrusion, protect websites from cyber attacks, monitor and detect suspicious activities across your network. Am I Isolated: Open-source container security benchmark Am I […]
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GUI frontends for GnuPG, the free implementation of the OpenPGP standard 2025-01-24 at 07:20 By Help Net Security GnuPG is a free and comprehensive implementation of the OpenPGP standard. It enables encryption and signing of data and communications, featuring a key management system and support for public key directories. While primarily a command-line tool, GnuPG […]
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Juniper enterprise routers backdoored via “magic packet” malware 2025-01-23 at 20:05 By Zeljka Zorz A stealthy attack campaign turned Juniper enterprise-grade routers into entry points to corporate networks via the “J-magic” backdoor, which is loaded into the devices’ memory and spawns a reverse shell when instructed to do so. “Our telemetry indicates the J-magic campaign […]
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Rsync vulnerabilities allow remote code execution on servers, patch quickly! 2025-01-15 at 16:46 By Zeljka Zorz Six vulnerabilities have been fixed in the newest versions of Rsync (v3.4.0), two of which could be exploited by a malicious client to achieve arbitrary code execution on a machine with a running Rsync server. “The client requires only […]
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Update your OpenWrt router! Security issue made supply chain attack possible 2024-12-09 at 20:51 By Zeljka Zorz A security issue that could have allowed attackers to serve malicious firmware images to users has been fixed by OpenWrt Project, the organization that helms the development of the popular Linux distribution for embedded devices. About OpenWrt OpenWrt […]
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Cybercriminals used a gaming engine to create undetectable malware loader 2024-11-27 at 20:33 By Zeljka Zorz Threat actors are using an ingenious new way for covertly delivering malware to a wide variety of operating systems and platforms: they have created a malware loader that uses Godot Engine, an open-source game engine. The loader – dubbed […]
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ESET researchers analyze first UEFI bootkit for Linux systems 2024-11-27 at 18:18 By Help Net Security ESET Research has discovered the first UEFI bootkit designed for Linux systems, named Bootkitty by its creators. Researchers believe this bootkit is likely an initial proof of concept, and based on ESET telemetry, it has not been deployed in […]
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QScanner: Linux command-line utility for scanning container images, conducting SCA 2024-11-27 at 08:02 By Help Net Security QScanner is a Linux command-line utility tailored for scanning container images and performing Software Composition Analysis (SCA). It is compatible with diverse container orchestration systems, container runtimes, and operating systems. QScanner features Instant console results: Scan for vulnerabilities […]
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Researchers unearth two previously unknown Linux backdoors 2024-11-21 at 12:12 By Help Net Security ESET researchers have identified multiple samples of two previously unknown Linux backdoors: WolfsBane and FireWood. The goal of the backdoors and tools discovered is cyberespionage that targets sensitive data such as system information, user credentials, and specific files and directories. These […]
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Oracle Linux 9 Update 5 brings security updates, OpenJDK 17, .NET 9.0 2024-11-20 at 15:42 By Help Net Security Oracle Linux offers a secure, streamlined platform for deploying and managing applications across on-premises, cloud, and edge environments. Designed for demanding workloads, it includes tools for automation, virtualization, high availability, cloud-native development, Kubernetes, and more. Oracle […]
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AlmaLinux 9.5 released: Security updates, new packages, and more! 2024-11-19 at 11:01 By Help Net Security AlmaLinux is a free, open-source, enterprise-grade Linux distribution. Governed and owned by the community, it offers a production-ready platform with binary compatibility to Red Hat Enterprise Linux. AlmaLinux 9.5, codenamed Teal Serval, is now available. Security updates: The OpenSSL […]
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Beware of phishing emails delivering backdoored Linux VMs! 2024-11-05 at 16:05 By Zeljka Zorz Unknown attackers are trying to trick Windows users into spinning up a custom Linux virtual machine (VM) with a pre-configured backdoor, Securonix researchers have discovered. The campaign The attack began with a phishing email, they believe, but they weren’t able to […]
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OpenPaX: Open-source kernel patch that mitigates memory safety errors 2024-11-01 at 07:03 By Mirko Zorz OpenPaX is an open-source kernel patch that mitigates common memory safety errors, re-hardening systems against application-level memory safety attacks using a simple Linux kernel patch. It’s available under the same GPLv2 license terms as the Linux kernel. “We are pleased […]
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