Rule History

SID: 2034541 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Nov 23, 2021, 12:00 PM

Message:

ET MALWARE Cobalt Strike CnC Domain in DNS Lookup (zuppohealth .com)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Cobalt Strike CnC Domain in DNS Lookup (zuppohealth .com)"; dns.query; content:"zuppohealth.com"; nocase; bsize:15; reference:url,github.com/pan-unit42/tweets/blob/master/2021-11-22-IOCs-for-Contact-Forms-campaign-activity.txt; reference:url,twitter.com/Unit42_Intel/status/1463178309160906753; classtype:domain-c2; sid:2034541; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_11_23, deployment Perimeter, malware_family Cobalt_Strike, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_11_23;)

Created:

Nov 23, 2021, 12:00 PM

Updated:

Nov 23, 2021, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 8, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules