Rule History

SID: 2016680 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 7 • Mar 27, 2013, 12:00 PM

Message:

ET WEB_SERVER WebShell Generic - net user

Rule:

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET WEB_SERVER WebShell Generic - net user"; flow:established,to_server; http.method; content:"POST"; http.request_body; content:"net"; nocase; content:!"work"; within:4; nocase; content:"user"; nocase; within:11; content:!"-agent"; nocase; within:6; pcre:"/net(?:%(?:25)?20|\s)+user/i"; classtype:bad-unknown; sid:2016680; rev:7; metadata:created_at 2013_03_27, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_06_01;)

Created:

Mar 27, 2013, 12:00 PM

Updated:

Jun 1, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 30, 2025, 9:36 PM

Filename:

rules/emerging-web_server.rules