Rule History

SID: 2020816 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 5 • Mar 31, 2015, 12:00 PM

Message:

ET MALWARE Volatile Cedar DNS Lookup (explorerdotnt.info)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Volatile Cedar DNS Lookup (explorerdotnt.info)"; dns.query; content:"explorerdotnt.info"; depth:18; nocase; endswith; fast_pattern; reference:url,checkpoint.com/downloads/volatile-cedar-technical-report.pdf; classtype:trojan-activity; sid:2020816; rev:5; metadata:created_at 2015_03_31, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_17;)

Created:

Mar 31, 2015, 12:00 PM

Updated:

Sep 17, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Nov 18, 2025, 10:34 PM

Filename:

rules/emerging-malware.rules