Cybersecurity News

Ransomware Groups Turn to Citrix Bleed 2, BYOVD, and Supply Chain Credentials

Threat actors associated with the Anubis ransomware operation have been observed exploiting the Citrix Bleed 2 (CVE-2025-5777) vulnerability to obtain initial …

Citrix

VECT 2.0 Ransomware Irreversibly Destroys Files Over 131KB on Windows, Linux, ESXi

Threat hunters are warning that the cybercriminal operation known as VECT 2.0 acts more like a wiper than a ransomware due to a critical flaw in its encryption…

Linux Windows VMware

China-Linked Storm-1175 Exploits Zero-Days to Rapidly Deploy Medusa Ransomware

A China-based threat actor known for deploying Medusa ransomware has been linked to the weaponization of a combination of zero-day and N-day vulnerabilities to…

Qilin and Warlock Ransomware Use Vulnerable Drivers to Disable 300+ EDR Tools

Threat actors associated with Qilin and Warlock ransomware operations have been observed using the bring your own vulnerable driver (BYOVD) technique to silenc…

Cisco

Interlock Ransomware Exploits Cisco FMC Zero-Day CVE-2026-20131 for Root Access

Amazon Threat Intelligence is warning of an active Interlock ransomware campaign that's exploiting a recently disclosed critical security flaw in Cisco Secure …

AWS Cisco

Warlock Ransomware Breaches SmarterTools Through Unpatched SmarterMail Server

SmarterTools confirmed last week that the Warlock (aka Storm-2603) ransomware gang breached its network by exploiting an unpatched SmarterMail instance.The inc…

New Osiris Ransomware Emerges as New Strain Using POORTRY Driver in BYOVD Attack

Cybersecurity researchers have disclosed details of a new ransomware family called Osiris that targeted a major food service franchisee operator in Southeast A…

Russian Ransomware Gangs Weaponize Open-Source AdaptixC2 for Advanced Attacks

The open-source command-and-control (C2) framework known as AdaptixC2 is being used by a growing number of threat actors, some of whom are related to Russian r…

Microsoft Links Storm-1175 to GoAnywhere Exploit Deploying Medusa Ransomware

Microsoft on Monday attributed a threat actor it tracks as Storm-1175 to the exploitation of a critical security flaw in Fortra GoAnywhere software to facilita…

New HybridPetya Ransomware Bypasses UEFI Secure Boot With CVE-2024-7344 Exploit

Cybersecurity researchers have discovered a new ransomware strain dubbed HybridPetya that resembles the notorious Petya/NotPetya malware, while also incorporat…

ShadowCaptcha Exploits WordPress Sites to Spread Ransomware, Info Stealers, and Crypto Miners

A new large-scale campaign has been observed exploiting over 100 compromised WordPress sites to direct site visitors to fake CAPTCHA verification pages that em…

WordPress

Storm-2603 Exploits SharePoint Flaws to Deploy Warlock Ransomware on Unpatched Systems

Microsoft has revealed that one of the threat actors behind the active exploitation of SharePoint flaws is deploying Warlock ransomware on targeted systems.The…

Microsoft 365

DragonForce Exploits SimpleHelp Flaws to Deploy Ransomware Across Customer Endpoints

The threat actors behind the DragonForce ransomware gained access to an unnamed Managed Service Provider's (MSP) SimpleHelp remote monitoring and management (R…

Play Ransomware Exploited Windows CVE-2025-29824 as Zero-Day to Breach U.S. Organization

Threat actors with links to the Play ransomware family exploited a recently patched security flaw in Microsoft Windows as a zero-day as part of an attack targe…

Windows

ToyMaker Uses LAGTOY to Sell Access to CACTUS Ransomware Gangs for Double Extortion

Cybersecurity researchers have detailed the activities of an initial access broker (IAB) dubbed ToyMaker that has been observed handing over access to double e…

Chinese-Linked Attackers Exploit Check Point Flaw to Deploy ShadowPad and Ransomware

A previously unknown threat activity cluster targeted European organizations, particularly those in the healthcare sector, to deploy PlugX and its successor, S…

China-Linked Attackers Exploit Check Point Flaw to Deploy ShadowPad and Ransomware

A previously unknown threat activity cluster targeted European organizations, particularly those in the healthcare sector, to deploy PlugX and its successor, S…

RansomHub Becomes 2024’s Top Ransomware Group, Hitting 600+ Organizations Globally

The threat actors behind the RansomHub ransomware-as-a-service (RaaS) scheme have been observed leveraging now-patched security flaws in Microsoft Active Direc…

Hackers Exploiting SimpleHelp RMM Flaws for Persistent Access and Ransomware

Threat actors have been observed exploiting recently disclosed security flaws in SimpleHelp's Remote Monitoring and Management (RMM) software as a precursor fo…

Ransomware Targets ESXi Systems via Stealthy SSH Tunnels for C2 Operations

Cybersecurity researchers have found that ransomware attacks targeting ESXi systems are also leveraging the access to repurpose the appliances as a conduit to …

VMware

Python-Based Malware Powers RansomHub Ransomware to Exploit Network Flaws

Cybersecurity researchers have detailed an attack that involved a threat actor utilizing a Python-based backdoor to maintain persistent access to compromised e…

CISA Warns of Critical Jenkins Vulnerability Exploited in Ransomware Attacks

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a critical security flaw impacting Jenkins to its Known Exploited Vulnerabilities (K…

VMware ESXi Flaw Exploited by Ransomware Groups for Admin Access

A recently patched security flaw impacting VMware ESXi hypervisors has been actively exploited by "several" ransomware groups to gain elevated permissions and …

VMware

Scattered Spider Adopts RansomHub and Qilin Ransomware for Cyber Attacks

The infamous cybercrime group known as Scattered Spider has incorporated ransomware strains such as RansomHub and Qilin into its arsenal, Microsoft has reveale…