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← Cortex XDR detectionsCortex XDR · Indicator

Traffic to known malicious IP 209.127.19.241

XQLmediumconfidence 86/100generated 2026-10-18

Connection to an IP tracked by skopnix as operation-c-major infrastructure.

Correlation
set the rule's MITRE tactic to command-and-control and technique to T1071
Linked actors
Operation C-Major
False positives
Scoped to one indicator with skopnix confidence 86/100 from 2 independent sources; checked against RFC1918/reserved space, CDN / cloud / scanner ranges and top-site lists (MISP warninglists), GreyNoise when enriched, and skopnix's benign-infrastructure list. Re-validate against last_seen before blocking: infrastructure is re-assigned.

XQL query

skopnix-cortex-ioc-ip-209-127-19-241-04b92906.xqldownload .xql ↓
preset = network_story
| filter action_remote_ip in ("209.127.19.241")
| fields agent_hostname, action_local_ip, action_remote_ip, action_remote_port, action_app_id, _time
| sort desc _time

How to deploy on Cortex XDR

  1. 1.Paste the XQL into Incident Response > Investigation > Query Builder > XQL Search.
  2. 2.To alert, save it as a Correlation Rule and set the MITRE tactic and technique printed with the rule.
  3. 3.Schedule it on the interval you hunt at; keep the fields stage for the alert's columns.

Check · CVE rules read PAN-OS URL logs (panw_ngfw_url_raw), which need the NGFW integration and, for HTTPS, decryption.

References