ET INFO Observed Network Tunneling Service Domain (b5p .us in TLS SNI)
Sourceet/open
CreatedFebruary 26, 2026
UpdatedFebruary 26, 2026
Classificationmisc-activity
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed Network Tunneling Service Domain (b5p .us in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".b5p.us"; endswith; fast_pattern; reference:url,www.pagekite.me; classtype:misc-activity; sid:2067931; rev:1; metadata:affected_product Any, attack_target Client_and_Server, created_at 2026_02_26, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2026_02_26;)
References
Metadata
affected productAny
attack targetClient_and_Server
created at2026_02_26
deploymentPerimeter
performance impactLow
confidenceHigh
signature severityInformational
updated at2026_02_26
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