Malicious CrowdStrike Falcon RTR Abuse Downloading From fleetdeck.io by UNC3944 (via process_creation)

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1105Ingress Tool Transfer
- T1219Remote Access Tools
Exfiltration
Impact

What it detects

This rule detects curl commands reaching the remote management tooling endpoints fleetdeck.io or the external IP echo service icanhazip.com, which UNC3944 executed through abused CrowdStrike Falcon Real Time Response runscript access to stage remote access software. Attacker abuse of a trusted EDR RTR channel to deploy tooling is a strong indicator of hands-on-keyboard intrusion.

Reporting behind it

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Malicious CrowdStrike Falcon RTR Abuse Downloading From fleetdeck.io by UNC3944 (via process_creation)

Pivot detection · T1105 · 9 related

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