Rule History

SID: 2027056 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 3 • Mar 6, 2019, 12:00 PM

Message:

ET MALWARE Sidewinder CnC DNS Query

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Sidewinder CnC DNS Query"; dns.query; content:"cdn-load.net"; nocase; endswith; reference:url,s.tencent.com/research/report/659.html; classtype:command-and-control; sid:2027056; rev:3; metadata:attack_target Client_and_Server, created_at 2019_03_06, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag APT, tag Sidewinder, updated_at 2020_09_16;)

Created:

Mar 6, 2019, 12:00 PM

Updated:

Sep 16, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-malware.rules