Rule History

SID: 2010884 • Source: et/open

Versions (2)

Version DetailsCurrent

Rev: 4 • Jul 30, 2010, 12:00 PM

Message:

ET DELETED .pdf File Possibly Containing Basic Hex Obfuscation

Rule:

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED .pdf File Possibly Containing Basic Hex Obfuscation"; flow:established,from_server; content:"PDF-"; depth:300; pcre:"/PDF-.+[0-9,A-F][0-9,A-F].[0-9,A-F][0-9,A-F].[0-9,A-F][0-9,A-F].[0-9,A-F][0-9,A-F].[0-9,A-F][0-9,A-F].[0-9,A-F][0-9,A-F]/si"; reference:url,isc.sans.org/diary.html?storyid=7903; reference:url,isc.sans.org/diary.html?storyid=7906; classtype:misc-activity; sid:2010884; rev:4; metadata:created_at 2010_07_30, signature_severity Unknown, updated_at 2019_07_26;)

Created:

Jul 30, 2010, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-deleted.rules