Tag: linux
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DKnife toolkit abuses routers to spy and deliver malware since 2019
DKnife is a Linux toolkit used since 2019 to hijack router traffic and deliver malware in cyber-espionage attacks. Cisco Talos found DKnife, a powerful Linux toolkit that threat actors use to spy on and control network traffic through routers and edge devices. It inspects and alters data in transit and installs malware on PCs, phones,…
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DKnife Linux toolkit hijacks router traffic to spy, deliver malware
A newly discovered toolkit called DKnife has been used since 2019 to hijack traffic at the edge-device level and deliver malware in espionage campaigns. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/dknife-linux-toolkit-hijacks-router-traffic-to-spy-deliver-malware/
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China-Linked DKnife AitM Framework Targets Routers for Traffic Hijacking, Malware Delivery
Cybersecurity researchers have taken the wraps off a gateway-monitoring and adversary-in-the-middle (AitM) framework dubbed DKnife that’s operated by China-nexus threat actors since at least 2019.The framework comprises seven Linux-based implants that are designed to perform deep packet inspection, manipulate traffic, and deliver malware via routers and edge devices. Its primary targets seem to First seen…
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China-Nexus Hackers Target Linux Devices to Redirect Traffic and Deploy Malware
>>DKnife,<< a sophisticated gateway-monitoring and adversary-in-the-middle (AitM) framework that turns Linux-based routers and edge devices into surveillance tools. Active since at least 2019, this campaign employs seven distinct Linux implants to inspect network traffic, hijack legitimate software downloads, and deploy advanced malware. The framework remains active as of January 2026, targeting personal computers, mobile phones,…
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CentOS 9 Security Flaw Enables Privilege Escalation PoC Released
A critical security flaw has been identified in CentOS 9 that allows a local user to escalate their privileges to root. The vulnerability, which stems from a Use-After-Free (UAF) condition in the Linux kernel’s networking subsystem, was awarded first place in the Linux category at the TyphoonPWN 2025 hacking competition. A Proof-of-Concept (PoC) exploit has…
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New APT group breached gov and critical infrastructure orgs in 37 countries
Tags: apt, backdoor, computer, control, espionage, finance, framework, government, group, infrastructure, linux, malware, monitoring, network, software, threat, tool, usa, vulnerabilityA complex toolset of implants: In addition to Cobalt Strike, the group uses various other malware payloads and command-and-control (C2) frameworks, including VShell, Havoc, SparkRat, and Sliver. On compromised web servers, the attackers deploy a variety of web shells, including Behinder, Neo-reGeorg, and Godzilla.On Linux servers the group has been seen deploying a rootkit dubbed…
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New APT group breached gov and critical infrastructure orgs in 37 countries
Tags: apt, backdoor, computer, control, espionage, finance, framework, government, group, infrastructure, linux, malware, monitoring, network, software, threat, tool, usa, vulnerabilityA complex toolset of implants: In addition to Cobalt Strike, the group uses various other malware payloads and command-and-control (C2) frameworks, including VShell, Havoc, SparkRat, and Sliver. On compromised web servers, the attackers deploy a variety of web shells, including Behinder, Neo-reGeorg, and Godzilla.On Linux servers the group has been seen deploying a rootkit dubbed…
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Asia-based government spies quietly broke into critical networks across 37 countries
And their toolkit includes a new, Linux kernel rootkit First seen on theregister.com Jump to article: www.theregister.com/2026/02/05/asia_government_spies_hacked_37_critical_networks/
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Knife Cutting the Edge: Disclosing a China-nexus gateway-monitoring AitM framework
Cisco Talos uncovered “DKnife,” a fully featured gateway-monitoring and adversary-in-the-middle (AitM) framework comprising seven Linux-based implants. First seen on blog.talosintelligence.com Jump to article: blog.talosintelligence.com/knife-cutting-the-edge/
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LockBit 5.0 Unveils Cross-Platform Threats for Windows, Linux ESXi Systems
The inner workings of LockBit 5.0, a sophisticated ransomware variant targeting Windows, Linux, and VMware ESXi systems simultaneously. This latest version represents a significant evolution in the cyber threat landscape, demonstrating how ransomware operators are refining their tools to maximize damage across diverse enterprise environments. LockBit operates on a >>Ransomware-as-a-Service<< (RaaS) model, where a core…
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Chrome Flaws Enable Arbitrary Code Execution and System Crashes
Google has released a new Stable Channel update for Chrome (version 144.0.7559.132/.133) on February 3, 2026, addressing two high”‘severity vulnerabilities that could allow attackers to execute arbitrary code or cause system crashes. The update is rolling out gradually for Windows, macOS, and Linux users. According to Google’s security advisory, both vulnerabilities were discovered recently and could be exploited…
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Open-Source-Alternative zu WSUS für Windows, Linux und macOS – Nach dem WSUS-Ende wird OPSI zur kostenlosen Alternative
First seen on security-insider.de Jump to article: www.security-insider.de/opsi-wsus-alternative-open-source-a-d6d2a3f7544135385bfbec3a62fe7bae/
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ShadowHS: New Stealthy Fileless Linux Malware Spreads Automatically
A sophisticated fileless Linux malware framework, ShadowHS, that represents a significant evolution in post-exploitation tooling. Unlike traditional malware binaries, ShadowHS operates entirely in memory and demonstrates advanced operator-driven capabilities designed specifically for long-term persistence in defended enterprise environments. ShadowHS is not a standalone malware binary but rather a heavily modified variant of the hackshell utility…
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AutoPentestX Introduced as Automated Penetration Testing Toolkit for Linux Systems
AutoPentestX, an open-source automated penetration testing framework designed to streamline vulnerability assessment and security testing workflows on Linux systems. The toolkit consolidates multiple security testing capabilities into a unified platform for ethical hacking and security auditing operations. Developed by security researcher Gowtham-Darkseid, AutoPentestX automates the execution of common penetration testing procedures through modular architecture and…
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IIS Under Siege: UAT-8099 Deploys Region-Locked >>BadIIS<< Linux Variants
Tags: linuxThe post IIS Under Siege: UAT-8099 Deploys Region-Locked >>BadIIS<< Linux Variants appeared first on Daily CyberSecurity. First seen on securityonline.info Jump to article: securityonline.info/iis-under-siege-uat-8099-deploys-region-locked-badiis-linux-variants/
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Startup Amutable plotting Linux security overhaul to counter hacking threats
Tags: attack, backdoor, ceo, cloud, computer, computing, container, cve, cybercrime, data, exploit, fortinet, hacking, infrastructure, kubernetes, linux, microsoft, open-source, skills, software, startup, supply-chain, technology, threat, tool, training, vpn, vulnerabilitysystemd, he has alongside him two other ex-Microsoft employees, Chris Kühl as CEO, and Christian Brauner as CTO.A clue to Amutable’s plans lies in the announcement’s emphasis on some of its founders’ backgrounds in Kubernetes, runc, LXC, Incus, and containerd, all connected in different ways to the Linux container stack. Computing is full of security…
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AIs Are Getting Better at Finding and Exploiting Security Vulnerabilities
Tags: ai, attack, best-practice, breach, cve, cyber, data, exploit, kali, linux, network, open-source, tool, update, vulnerabilityFrom an Anthropic blog post: In a recent evaluation of AI models’ cyber capabilities, current Claude models can now succeed at multistage attacks on networks with dozens of hosts using only standard, open-source tools, instead of the custom tools needed by previous generations. This illustrates how barriers to the use of AI in relatively autonomous…
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NVIDIA GPU Driver Vulnerability Opens Door to Elevated Privileges
NVIDIA has released critical security updates for its GPU Display Drivers after discovering multiple high-severity vulnerabilities that could allow attackers to execute malicious code and escalate privileges on affected systems. The security bulletin, published on January 27, 2026, addresses five distinct vulnerabilities affecting Windows, Linux, and virtualization platforms, with CVSS scores reaching 7.8. Use-After-Free and…
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Systemd daddy quits Microsoft to prove Linux can be trusted
Lennart Poettering’s Amutable aims to bring ‘cryptographically verifiable integrity’ to the other OS First seen on theregister.com Jump to article: www.theregister.com/2026/01/29/lennart_poettering_quits_microsoft/
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Cyble Research Discovers ShadowHS, an In-Memory Linux Framework for Long-Term Access
Cyble Research & Intelligence Labs (CRIL) has uncovered a post-exploitation Linux framework called ShadowHS, designed for stealthy, in-memory operations. Unlike traditional malware, ShadowHS leverages a fileless architecture and a weaponized version of hackshell, enabling attackers to maintain long-term, operator-controlled access to compromised Linux systems. First seen on thecyberexpress.com Jump to article: thecyberexpress.com/shadowhs-fileless-linux-exploitation-framework/
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Open Directory Exposure Leaks BYOB Framework Across Windows, Linux, and macOS
An exposed command-and-control server hosting a complete deployment of the BYOB (Build Your Own Botnet) framework, a sophisticated post-exploitation tool targeting Windows, Linux, and macOS systems. The discovery, made through Hunt.io’s AttackCapture tooling, reveals an active campaign that has operated for approximately ten months with multi-platform remote access capabilities and integrated cryptocurrency mining operations. The…
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Einblicke in VoidLink: C2-kompilierte Kernel-Rootkits und Tarnmechanismen
Eine neu analysierte Schadsoftware namens VoidLink zeigt, wie stark sich Linux-basierte Angriffe in Richtung Cloud- und Container-Infrastrukturen weiterentwickeln. First seen on it-daily.net Jump to article: www.it-daily.net/it-sicherheit/cybercrime/voidlink-rootkits-tarnmechanismen
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Succession: Linux kernel community gets continuity plan for post-Linus era
Tags: linuxConclave doc outlines path to eternal releases First seen on theregister.com Jump to article: www.theregister.com/2026/01/27/linux_continuity_plan/
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APT Attacks Target Indian Government Using SHEETCREEP, FIREPOWER, and MAILCREEP – Part 2
Tags: access, ai, api, apt, attack, backdoor, backup, cloud, control, credentials, data, dns, email, exploit, github, google, government, group, india, infection, infrastructure, Internet, linux, malicious, malware, microsoft, monitoring, network, phishing, powershell, programming, service, tactics, threat, tool, update, windowsThis is Part 2 of our two-part technical analysis on the Gopher Strike and Sheet Attack campaigns. For details on the Gopher Strike campaign, go to Part 1.IntroductionIn September 2025, Zscaler ThreatLabz uncovered three additional backdoors, SHEETCREEP, FIREPOWER, and MAILCREEP, used to power the Sheet Attack campaign. In Part 2 of this series, ThreatLabz will…
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U.S. CISA adds Microsoft Office, GNU InetUtils, SmarterTools SmarterMail, and Linux Kernel flaws to its Known Exploited Vulnerabilities catalog
Tags: cisa, cybersecurity, exploit, flaw, infrastructure, kev, linux, microsoft, office, vulnerabilityU.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Microsoft Office, GNU InetUtils, SmarterTools SmarterMail, and Linux Kernel flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Microsoft Office, GNU InetUtils, SmarterTools SmarterMail, and Linux Kernel flaws to its Known Exploited Vulnerabilities (KEV) catalog. Below are the flaws added to the catalog:…
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Sysdig entdeckt C2-kompilierte Kernel-Rootkits und neue Tarnmechanismen im LinuxFramework Voidlink
Sysdig hat Voidlink, ein in China entwickeltes Linux-Malware-Framework zur gezielten Attacke auf Cloud-Umgebungen, untersucht. Vorausgegangen war dieser technisch tiefgehenden Analyse die Aufdeckung von Voidlink durch Check Point Research am 13. Januar 2026. In der eigenen Analyse war es Sysdig möglich, Loader-Kette, Rootkit-Interna und Kontrollmechanismen detailliert unter die Lupe zu nehmen und zu dekonstruieren inklusive […]…
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Sysdig zeigt neue Erkenntnisse zur Linux-Malware VoidLink
Eine neue Analyse von Sysdig zeigt auf, wie die C2-Server der Linux-Malware Kernel-Module erstellt, die der Kernel-Version des Ziels entsprechen. Damit umgeht sie ein zentrales Portabilitätsproblem klassischer LKM-Rootkits First seen on infopoint-security.de Jump to article: www.infopoint-security.de/sysdig-zeigt-neue-erkenntnisse-zur-linux-malware-voidlink/a43463/
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Emmabuntüs DE 6: A newbie-friendly Linux to help those in need
Tags: linuxA distro aimed at helping people, reducing e-waste and helping a charity, too First seen on theregister.com Jump to article: www.theregister.com/2026/01/25/emmabuntus_6_charitable_linux/
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Brax Open Slate: Modulares Dual-Boot-Tablet mit Android und Linux
Brax entwickelt ein neues modulares, auf Privacy fokussiertes Mobilgerät – nach dem Smartphone Brax3 kommt das Tablet Open Slate. First seen on golem.de Jump to article: www.golem.de/news/brax-open-slate-modulares-dual-boot-tablet-mit-android-und-linux-2601-204599.html
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AIs are Getting Better at Finding and Exploiting Internet Vulnerabilities
Really interesting blog post from Anthropic: In a recent evaluation of AI models’ cyber capabilities, current Claude models can now succeed at multistage attacks on networks with dozens of hosts using only standard, open-source tools, instead of the custom tools needed by previous generations. This illustrates how barriers to the use of AI in relatively…