Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Dark Halo/SUNBURST Related DNS Lookup to globalnetworkissues .com"; dns.query; dotprefix; content:".globalnetworkissues.com"; nocase; endswith; reference:url,www.volexity.com/blog/2020/12/14/dark-halo-leverages-solarwinds-compromise-to-breach-organizations/; classtype:trojan-activity; sid:2031392; rev:1; metadata:attack_target Client_Endpoint, created_at 2020_12_15, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_12_15;)