Suspicious Remote Desktop Enablement via Registry fDenyTSConnections and Firewall Rule (via process_creation)
- Product
- windows
- Category
- process_creation
- Author
- HuntRule
- Published
- 2026-07-17
- Updated
- 2026-08-28
ATT&CK techniques
Lateral MovementRecon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects Remote Desktop being switched on by setting fDenyTSConnections to zero or by opening the RDP firewall group through netsh advfirewall, the lateral-access preparation in the ELPACO-team intrusion before RDP movement to backup and file servers. Adversaries enable inbound RDP to pivot with stolen credentials, so these host-hardening reversals outside change control warrant investigation and can be filtered on approved administration hosts.
Reporting behind it
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
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