Rule History

SID: 2044624 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 1 • Mar 15, 2023, 12:00 PM

Message:

ET HUNTING HTA Download with PowerShell User-Agent

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING HTA Download with PowerShell User-Agent"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".hta"; endswith; http.user_agent; content:"WindowsPowerShell/"; fast_pattern; classtype:misc-activity; sid:2044624; rev:1; metadata:created_at 2023_03_15, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_15;)

Created:

Mar 15, 2023, 12:00 PM

Updated:

Mar 15, 2023, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Aug 25, 2025, 9:35 PM

Filename:

rules/emerging-hunting.rules