Suspicious Execution From Hidden fonts-unix Directory in tmp on Linux

ATT&CK techniques

Initial Access → C2

Recon
Resource Dev
Initial Access
- T1195.002Compromise Software Supply Chain
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1105Ingress Tool Transfer
Exfiltration
Impact

What it detects

This rule detects process execution from the hidden /tmp/.fonts-unix directory on Linux. The AdaptixC2 agent delivered through a malicious npm supply-chain package staged its Linux payload in this location to blend in with legitimate font-socket directories. Executing a binary from a world-writable hidden temp path is a strong indicator of malware staging and persistence on Unix hosts.

Reporting behind it

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Suspicious Execution From Hidden fonts-unix Directory in tmp on Linux

Pivot detection · T1105 · 9 related

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