Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed Xeox RMM Domain (xeox .com in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".xeox.com"; endswith; fast_pattern; reference:url,help.xeox.com/knowledge-base/gSuyNfDH6u79M82utnswf2/firewall-settings-xeox-agent-and-integrations/47T7S9tZJ2L1Z2W5gwuXoW; classtype:misc-activity; sid:2068206; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_03_13, deployment Perimeter, confidence High, signature_severity Informational, tag RMM, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_03_13;)