Rule History

SID: 2019410 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 2 • Oct 15, 2014, 12:00 PM

Message:

ET HUNTING SUSPICIOUS SMTP Attachment Inbound PPT attachment with Embedded OLE Object M5

Rule:

alert smtp $EXTERNAL_NET any -> $SMTP_SERVERS any (msg:"ET HUNTING SUSPICIOUS SMTP Attachment Inbound PPT attachment with Embedded OLE Object M5"; flow:established,to_server; content:"cHQvZW1iZWRkaW5ncy9vbGVPYmplY3"; classtype:misc-activity; sid:2019410; rev:2; metadata:created_at 2014_10_15, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)

Created:

Oct 15, 2014, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Dec 4, 2025, 10:34 PM

Filename:

rules/emerging-hunting.rules