Rule History

SID: 2002489 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 4 • Jul 30, 2010, 12:00 PM

Message:

ET DELETED SMTP Transaction History

Rule:

alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET DELETED SMTP Transaction History"; flow:to_server,established; content:"Subject|3A|"; pcre:"/\Wtransaction\shistor(y|ies)\W/ism"; classtype:policy-violation; sid:2002489; rev:4; metadata:created_at 2010_07_30, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)

Created:

Jul 30, 2010, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Oct 10, 2025, 8:34 PM

Filename:

rules/emerging-deleted.rules