Cloudflared Tunnels Related DNS Requests
Last updated on:
In this page
About the rule
Rule Type
Standard
Rule Description
Detects DNS requests to Cloudflared tunnels domains. Attackers can abuse that feature to establish a reverse shell or persistence on a machine.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "sa_dns_query" AND QUERY endswith ".v2.argotunnel.com,protocol-v2.argotunnel.com,trycloudflare.com,update.argotunnel.com" select Action1.HOSTNAME,Action1.MESSAGE,Action1.PROCESSNAME,Action1.QUERY,Action1.STATUSCODE,Action1.RESULT
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Nasreddine Bencherchali (Nextron Systems)
