Rule History

SID: 2017365 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 14 • Aug 21, 2013, 12:00 PM

Message:

ET HUNTING SUSPICIOUS UA (iexplore)

Rule:

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING SUSPICIOUS UA (iexplore)"; flow:established,to_server; http.user_agent; content:"iexplore"; depth:8; fast_pattern; nocase; http.host; content:!"su.pctools.com"; content:!".advent.com"; reference:md5,b0e8ce16c42dee20d2c1dfb1b87b3afc; classtype:bad-unknown; sid:2017365; rev:14; metadata:attack_target Client_Endpoint, created_at 2013_08_21, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence Low, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_09_12; target:src_ip;)

Created:

Aug 21, 2013, 12:00 PM

Updated:

Sep 12, 2023, 12:00 PM

DB Created:

Aug 21, 2013, 12:00 PM

DB Updated:

Dec 1, 2025, 11:34 PM

Filename:

rules/emerging-hunting.rules