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Five operational threat-hunting leads from recent CISA advisories

Hunt DMZ web shells that precede RDP lateral movement to domain controllers and VMware vCenter.

[1][2][3]

Flag PsExec activity that creates an inbound RDP rule on port 3389, especially `openrdp.bat`.

[4][5]

Watch for VPN access without MFA, especially tied to CVE-2024-40766 or stolen VPN credentials.

[6][7]

Alert on POSTs to `/vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php` and `/.env` requests on exposed sites.

[8][9][10][11]

Review unexpected PsExec use and exposed RDP, since CISA links both to ransomware intrusion paths.

[12][13][14]

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