Rule History

SID: 2033724 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Aug 13, 2021, 12:00 PM

Message:

ET MALWARE APT-C-48 Related CnC Domain in DNS Lookup (ntc-pk .sytes .net)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE APT-C-48 Related CnC Domain in DNS Lookup (ntc-pk .sytes .net)"; dns.query; content:"ntc-pk.sytes.net"; nocase; bsize:16; reference:url,mp.weixin.qq.com/s/dMFyLxsErYUZX7BQyBL9YQ; reference:md5,dc7044f273b0a161279ddce8c5dff0a7; classtype:domain-c2; sid:2033724; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_08_13, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_13;)

Created:

Aug 13, 2021, 12:00 PM

Updated:

Aug 13, 2021, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 9, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules