Rule History

SID: 2021691 • Source: et/open

Versions (5)

Version DetailsCurrent

Rev: 5 • Aug 19, 2015, 12:00 PM

Message:

ET MALWARE Likely Linux/Tsunami DDoS Attack Participation (s-p-o-o-f-e-d.h-o-s-t.name)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Likely Linux/Tsunami DDoS Attack Participation (s-p-o-o-f-e-d.h-o-s-t.name)"; threshold:type limit,track by_src,count 3,seconds 60; dns.query; content:"s-p-o-o-f-e-d.h-o-s-t.name"; depth:26; fast_pattern; nocase; endswith; reference:md5,c01991d55133d0057c9b721bb141a5d9; classtype:trojan-activity; sid:2021691; rev:5; metadata:created_at 2015_08_19, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_17;)

Created:

Aug 19, 2015, 12:00 PM

Updated:

Sep 17, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Oct 13, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules