Cloudflared Tunnel Execution
Last updated on:
In this page
About the rule
Rule Type
Standard
Rule Description
Detects execution of the "cloudflared" tool to connect back to a tunnel. This was seen used by threat actors to maintain persistence and remote access to compromised networks.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND (COMMANDLINE contains " tunnel " AND COMMANDLINE contains " run ") AND COMMANDLINE contains "-config ,-credentials-contents ,-credentials-file ,-token " select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Janantha Marasinghe, Nasreddine Bencherchali (Nextron Systems)
