ET INFO Observed OneNote Template Domain in TLS SNI (onenotegem .com)
Sourceet/open
CreatedFebruary 9, 2023
UpdatedFebruary 9, 2023
Classificationmisc-activity
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Observed OneNote Template Domain in TLS SNI (onenotegem .com)"; flow:established,to_server; tls.sni; dotprefix; content:".onenotegem.com"; endswith; fast_pattern; classtype:misc-activity; sid:2044154; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_02_09, deployment Perimeter, confidence High, signature_severity Informational, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_09;)
Metadata
attack targetClient_Endpoint
created at2023_02_09
deploymentPerimeter
confidenceHigh
signature severityInformational
tagDescription_Generated_By_Proofpoint_Nexus
updated at2023_02_09
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