Rule History

SID: 2039157 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 2 • Oct 11, 2022, 12:00 PM

Message:

ET MALWARE Observed DNS Query to Cobalt Strike Domain 2022-10-11 (pigahinilu .com)

Rule:

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to Cobalt Strike Domain 2022-10-11 (pigahinilu .com)"; dns.query; content:"pigahinilu.com"; nocase; bsize:14; reference:url,twitter.com/Unit42_Intel/status/1579876998276558862; classtype:trojan-activity; sid:2039157; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_10_11, deployment Perimeter, malware_family Cobalt_Strike, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_15;)

Created:

Oct 11, 2022, 12:00 PM

Updated:

Mar 15, 2023, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Aug 29, 2025, 8:34 PM

Filename:

rules/emerging-malware.rules