Rule History

SID: 2035626 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 2 • Mar 28, 2022, 12:00 PM

Message:

ET MALWARE PlugX Related Domain in DNS Lookup (ntpserver .xyz)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE PlugX Related Domain in DNS Lookup (ntpserver .xyz)"; dns.query; content:"ntpserver.xyz"; fast_pattern; nocase; bsize:13; reference:md5,09c120d23f986040af202607db6157f0; reference:url,twitter.com/0xrb/status/1508330395250868229; classtype:domain-c2; sid:2035626; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_03_28, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_28;)

Created:

Mar 28, 2022, 12:00 PM

Updated:

Mar 28, 2022, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 4, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules