Suspicious Data Exfiltration via Finger LOLBIN

ATT&CK techniques

Exfiltration

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
- T1048Exfiltration Over Alternative Protocol
Impact

What it detects

This rule detects execution of finger.exe, a rarely used legacy binary abused as a living-off-the-land channel for data exfiltration and remote content retrieval. It was catalogued among data-exfiltration LOLBIN binaries. Any finger.exe execution in modern environments is anomalous and warrants review.

Reporting behind it

Related detections9 linkedT1048 — drag to rearrange

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Windows DNS Queries to git-tanstack.com and filev2.getsession.org

Windows Process Execution: Restic Backup Tool Command-Line Indicators

Windows: WinSCP Execution from Non-Standard Directory

Suspicious Data Exfiltration via Finger LOLBIN

Pivot detection · T1048 · 9 related

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