Suspicious curl POST Exfiltration of Archive from tmp Staging Folder via process_creation

ATT&CK techniques

Collection → Exfiltration

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
- T1560Archive Collected Data
C2
Exfiltration
- T1041Exfiltration Over C2 Channel
Impact

What it detects

This rule detects curl invoked with an HTTP POST that uploads a file staged under the /tmp directory. A macOS infostealer collected stolen data into a /tmp staging folder and used curl to POST the resulting archive to its C2, so a curl POST referencing a /tmp file indicates active exfiltration of harvested data.

Reporting behind it

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Suspicious curl POST Exfiltration of Archive from tmp Staging Folder via process_creation

Pivot detection · T1041 · 9 related

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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