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Rev: 2 • Oct 15, 2014, 12:00 PMET HUNTING SUSPICIOUS SMTP Attachment Inbound PPT attachment with Embedded OLE Object M6
alert smtp $EXTERNAL_NET any -> $SMTP_SERVERS any (msg:"ET HUNTING SUSPICIOUS SMTP Attachment Inbound PPT attachment with Embedded OLE Object M6"; flow:established,to_server; content:"BwdC9lbWJlZGRpbmdzL29sZU9iamVjd"; classtype:misc-activity; sid:2019411; rev:2; metadata:created_at 2014_10_15, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)
Oct 15, 2014, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
Dec 5, 2025, 11:34 PM
rules/emerging-hunting.rules