Malicious Remote Script Piped to Shell via Curl (via process_creation)
- Product
- linux
- Category
- process_creation
- Author
- HuntRule
- Published
- 2026-09-19
- Updated
- 2026-09-19
ATT&CK techniques
Execution → C2Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
Exfiltration
Impact
What it detects
This rule detects curl fetching a remote script and piping it directly into a shell interpreter, a common Linux and container compromise technique. Observed in the Elastic Security Labs TeamPCP container attack scenario where curl -fsSL of proxy.sh piped to bash bootstraps the intrusion and downloads further tooling.
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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