UAT-10027 campaign hits U.S. education and healthcare with stealthy Dohdoor backdoor

UAT-10027 campaign is targeting U.S. education and healthcare sectors to deploy a new Dohdoor backdoor. Cisco Talos has identified a new threat cluster, tracked as UAT-10027, targeting U.S. education and healthcare organizations since at least December 2025 to deploy a previously unseen backdoor named Dohdoor. Initial access likely occurs through phishing, triggering a PowerShell script […]

February 26, 2026
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Lazarus APT group deployed Medusa Ransomware against Middle East target

North Korea’s Lazarus Group used Medusa ransomware in an attack on an unnamed Middle East organization, researchers report. The North Korea-linked Lazarus APT Group, also known as Diamond Sleet and Pompilus, has been spotted deploying Medusa ransomware against an unnamed organization in the Middle East, according a new report from the Symantec and Carbon Black […]

February 25, 2026
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