Rule History

SID: 2010788 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 6 • Jul 30, 2010, 12:00 PM

Message:

ET MALWARE Knockbot Proxy Response From Controller (empty command)

Rule:

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Knockbot Proxy Response From Controller (empty command)"; flow:established,from_server; content:"|0d 0a 0d 0a|command|7c|"; nocase; reference:url,www.malwaredomainlist.com/mdl.php?search=knock.php; classtype:trojan-activity; sid:2010788; rev:6; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_19;)

Created:

Jul 30, 2010, 12:00 PM

Updated:

Aug 19, 2020, 12:00 PM

DB Created:

Jul 30, 2010, 12:00 PM

DB Updated:

Oct 8, 2025, 9:38 PM

Filename:

rules/emerging-malware.rules