ET INFO Observed External IP Lookup Domain (ipleak .net) in TLS SNI

7.0.3 5.0SID: 2072065Rev: 1Enabled3 views

Fileemerging-info.rules

CreatedSeptember 17, 2026

UpdatedSeptember 17, 2026

Classificationmisc-activity

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed External IP Lookup Domain (ipleak .net) in TLS SNI"; flow:established,to_server; tls.sni; content:"ipleak.net"; endswith; fast_pattern; classtype:misc-activity; sid:2072065; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_09_17, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2026_09_17, mitre_tactic_id TA0043, mitre_tactic_name Reconnaissance, mitre_technique_id T1590, mitre_technique_name Gather_Victim_Network_Information;)

Metadata

attack targetClient_Endpoint

created at2026_09_17

deploymentPerimeter

performance impactLow

confidenceHigh

signature severityInformational

updated at2026_09_17

mitre tactic idTA0043

mitre tactic nameReconnaissance

mitre technique idT1590

mitre technique nameGather_Victim_Network_Information

Comments (0)

Please sign in to leave a comment.

No comments yet. Be the first to comment!