alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to Buer - DomainInfo Domain"; flow:established,to_server; dns.query; content:"officewestunionbank.com"; bsize:23; reference:md5,0731679c5f99e8ee65d8b29a3cabfc6b; classtype:domain-c2; sid:2032893; rev:3; metadata:attack_target Client_Endpoint, created_at 2021_04_30, deployment Perimeter, deprecation_reason Age, malware_family Buer, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_01_04, reviewed_at 2024_01_04;)