ET INFO Observed FingerprintJS Domain (openfpcdn .io in TLS SNI)
Sourceet/open
CreatedNovember 17, 2023
UpdatedNovember 17, 2023
Classificationmisc-activity
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed FingerprintJS Domain (openfpcdn .io in TLS SNI)"; flow:established,to_server; tls.sni; dotprefix; content:".openfpcdn.io"; endswith; fast_pattern; threshold:type limit,seconds 300,count 1,track by_src; reference:url,github.com/fingerprintjs/cdn; classtype:misc-activity; sid:2049251; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_11_17, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_17;)
References
Metadata
attack targetClient_Endpoint
created at2023_11_17
deploymentPerimeter
confidenceHigh
signature severityInformational
tagDescription_Generated_By_Proofpoint_Nexus
updated at2023_11_17
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