ET FILE_SHARING Observed DNS Query to File Sharing Domain (filelu .cloud)
Sourceet/open
Fileemerging-file_sharing.rules
CreatedSeptember 2, 2026
UpdatedSeptember 3, 2026
Classificationmisc-activity
alert dns $HOME_NET any -> any any (msg:"ET FILE_SHARING Observed DNS Query to File Sharing Domain (filelu .cloud)"; dns.query; dotprefix; content:".filelu.cloud"; nocase; endswith; classtype:misc-activity; sid:2071888; rev:2; metadata:attack_target Client_Endpoint, created_at 2026_09_02, deployment Perimeter, former_category INFO, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2026_09_03;)
Metadata
attack targetClient_Endpoint
created at2026_09_02
deploymentPerimeter
former categoryINFO
confidenceHigh
signature severityInformational
tagDescription_Generated_By_Proofpoint_Nexus
updated at2026_09_03
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