Rule History

SID: 2002452 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 3 • Jul 30, 2010, 12:00 PM

Message:

ET DELETED SMTP US Secret RD

Rule:

alert tcp $SMTP_SERVERS any -> $EXTERNAL_NET 25 (msg:"ET DELETED SMTP US Secret RD"; flow:to_server,established; content:"Subject|3A|"; pcre:"/(?<!TOP\s|T)(SECRET|S)//[\s\w,/-]*(RESTRICTED\sDATA|RD)[\s\w,/-]*(?=//MR)/ism"; classtype:policy-violation; sid:2002452; rev:3; 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 6, 2025, 4:34 PM

Filename:

rules/emerging-deleted.rules