Unit 42 researchers have identified significant overlaps between Microsoft’s reported ToolShell exploit chain targeting SharePoint vulnerabilities and a tracked activity cluster dubbed CL-CRI-1040. This cluster, active since at least March 2025, deploys a custom malware suite named Project AK47, comprising multi-protocol backdoors, ransomware, and DLL side-loading loaders. Microsoft’s analysis attributes the activity to Storm-2603, a […]
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