Malicious Payload Download From copy.fail Exploit Host on Linux (via process_creation)
- Product
- linux
- Category
- process_creation
- Author
- HuntRule
- Published
- 2026-10-21
- Updated
- 2026-10-21
ATT&CK techniques
Priv Esc → C2Recon
Resource Dev
Initial Access
Execution
Persistence
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
Exfiltration
Impact
What it detects
This rule detects curl or wget retrieving content from the copy.fail exploit host used in CVE-2026-31431 Copy Fail attacks. The downloaded exploit is followed by su-based privilege escalation to root on the compromised Linux system.
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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Also included
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