ET PHISHING Observed DeviceCode Phishing Domain (microsoft .customers-365 .com in TLS SNI)
Sourceet/open
Fileemerging-phishing.rules
CreatedMay 4, 2026
UpdatedMay 4, 2026
Classificationsocial-engineering
alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET PHISHING Observed DeviceCode Phishing Domain (microsoft .customers-365 .com in TLS SNI)"; classtype:social-engineering; sid:2069120; rev:1; metadata:attack_target Client_Endpoint, created_at 2026_05_04, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_05_04;)
Detection details are hidden.
Metadata
attack targetClient_Endpoint
created at2026_05_04
deploymentPerimeter
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2026_05_04
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