Possible NetHealth Implant C2 Beacon URI Pattern

ATT&CK techniques

C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1071.001Web Protocols
- T1105Ingress Tool Transfer
Exfiltration
Impact

What it detects

This rule detects outbound HTTP requests matching the structured C2 beacon paths used by the Rapid Breach implant, including the resutato.com tap.php stager and the st.php beacon carrying computer and user name query parameters. These fixed URI patterns indicate command-and-control communication with the attacker infrastructure.

Reporting behind it

Related detections9 linkedT1105 — drag to rearrange

Malicious Curl Download From C2 CAPTCHA Path via Process Creation

Malicious C2 Download Embedding Host Reconnaissance in URL

Suspicious File Upload via curl Multipart Form

Possible GCleaner Loader C2 Check-in via cpa ping php Endpoint via proxy

TAG-144 Payload Staging via MyCustomAgent User-Agent (via proxy)

LightSpy macOS Implant PID File Creation in Users Shared

Possible Remcos C2 Connection from eilowutil Process

Suspicious Remote HTA Payload Execution via MSHTA

Possible PurpleFox MSHTA to Msiexec Remote MSI Chain

Possible NetHealth Implant C2 Beacon URI Pattern

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.

Full detection rule

Unlock this rule to view and copy it

The detection logic is included with a plan. Everything else — context, mappings and implementation details — stays free on this page.

Sign in for 3 free unlocks

Signing in gives you 3 unlocks to spend on any rule in the library. No card, and they do not expire.

Also included

Unlocked rules convert on this page — to Splunk SPL or Splunk — Raw Index SPL or Microsoft Sentinel KQL or Microsoft Sentinel ASIM ASIM KQL or Microsoft Defender XDR KQL or Elastic Security KQL or Elastic Security Lucene or Elastic Security ES|QL or CrowdStrike Falcon CQL or SentinelOne PowerQuery or Palo Alto Cortex XDR XQL or Carbon Black Cloud Platform Search or Carbon Black EDR Process Search or Google Security Operations UDM Search or IBM QRadar AQL or Sumo Logic Cloud SIEM Rules expression or Rapid7 InsightIDR LEQL or Graylog Search or OpenSearch Lucene or OpenSearch PPL PPL or Grafana Loki LogQL or SQLite SQL or Zircolite SQLite — with the log-source profile the engine picked, the field map it used, and everything it could not express. Converting a rule you have unlocked costs no further credit.

See it run on a free rule →Convert your own rule →