Rule History

SID: 2033355 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Jul 16, 2021, 12:00 PM

Message:

ET INFO Windows Powershell User-Agent Usage

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Windows Powershell User-Agent Usage"; flow:established,to_server; http.user_agent; content:"Mozilla/"; startswith; content:") WindowsPowerShell/"; distance:0; fast_pattern; classtype:not-suspicious; sid:2033355; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_07_16, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_16;)

Created:

Jul 16, 2021, 12:00 PM

Updated:

Jul 16, 2021, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 10, 2025, 9:34 PM

Filename:

rules/emerging-info.rules