Posted inCybersecurity News
Storm-2603 Exploits SharePoint Flaws to Deliver Dual Ransomware via DNS-Controlled Backdoor
A sophisticated and likely China-based threat actor, tracked as Storm-2603, has emerged at the forefront of recent cyberattacks exploiting critical Microsoft SharePoint Server vulnerabilities. Leveraging flaws identified as CVE-2025-49706 and CVE-2025-49704 (collectively known as the ToolShell exploits), Storm-2603 has orchestrated a wave of attacks deploying both Warlock (a.k.a. X2anylock) and LockBit Black ransomware.









