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A Go-based command-and-control (C2) framework originally marketed within Chinese-speaking offensive security communities has been quietly expanding its reach, drawing growing attention from threat actors seeking flexible and cost-effective alternatives to expensive commercial tools. Known as Vshell, the tool has evolved well beyond its early roots as a basic remote access tool (RAT) and now poses […]
The post Vshell Gains Traction Among Threat Actors as an Alternative to Cobalt Strike appeared first on Cyber Security News.
A newly discovered malware campaign has been quietly targeting educational institutions and healthcare organizations across the United States since at least December 2025. The threat, tracked under the actor designation “UAT-10027,” deploys a previously unknown backdoor called “Dohdoor,” which uses an advanced combination of stealth techniques and multi-stage delivery to gain persistent access into victim […]
The post New Dohdoor Malware Attacking Schools and Health Care Sectors in U.S. via Multi-Stage Attack Chain appeared first on Cyber Security News.