Rule History

SID: 2010228 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 8 • Jul 30, 2010, 12:00 PM

Message:

ET DELETED Suspicious Microsoft Windows NT 6.1 User-Agent Detected

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET DELETED Suspicious Microsoft Windows NT 6.1 User-Agent Detected"; flow:established,to_server; content:"User-Agent|3a 20|Mozilla/4.0 (compatible|3b| "; nocase; http_header; content:"|3b 20|Windows NT 6.1|3b 20|"; http_header; threshold:type limit, track by_src, seconds 60, count 1; reference:url,www.microsoft.com/windows/windows-7/default.aspx; classtype:policy-violation; sid:2010228; rev:8; metadata:created_at 2010_07_30, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_23;)

Created:

Jul 30, 2010, 12:00 PM

Updated:

Jun 23, 2021, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Nov 11, 2025, 10:34 PM

Filename:

rules/emerging-deleted.rules