Rule History

SID: 2002994 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 7 • Jul 30, 2010, 12:00 PM

Message:

ET SCAN Rapid IMAP Connections - Possible Brute Force Attack

Rule:

alert tcp $EXTERNAL_NET any -> $HOME_NET 143 (msg:"ET SCAN Rapid IMAP Connections - Possible Brute Force Attack"; flow:to_server; flags:S,12; threshold:type both, track by_src, count 30, seconds 60; classtype:misc-activity; sid:2002994; rev:7; metadata:created_at 2010_07_30, confidence Medium, signature_severity Informational, 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:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-scan.rules