Rule History

SID: 2017401 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 8 • Aug 31, 2013, 12:00 PM

Message:

ET WEB_SERVER WebShell Generic eval of str_rot13

Rule:

alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET WEB_SERVER WebShell Generic eval of str_rot13"; flow:established,from_server; file_data; content:"str_rot13"; nocase; fast_pattern; content:"eval"; nocase; pcre:"/^[\r\n\s]*?\x28[\r\n\s]*?str_rot13/Rsi"; classtype:trojan-activity; sid:2017401; rev:8; metadata:created_at 2013_08_31, confidence Medium, signature_severity Major, updated_at 2019_10_08;)

Created:

Aug 31, 2013, 12:00 PM

Updated:

Oct 8, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-web_server.rules