Suspicious FRP Proxy Download via wget to Temporary Directory (via process_creation)

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1090Proxy
- T1105Ingress Tool Transfer
Exfiltration
Impact

What it detects

This rule detects wget fetching the FRP fast reverse proxy binary into a temporary directory after Ivanti EPMM exploitation for tunneling and SOCKS proxying. Attackers staged frpc under hidden /tmp paths to establish covert network access. Downloading frpc to /tmp is a strong lateral movement and C2 indicator.

Reporting behind it

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Suspicious FRP Proxy Download via wget to Temporary Directory (via process_creation)

Pivot detection · T1105 · 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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