alert dns $HOME_NET any -> any any (msg:"ET MALWARE APT28 CnC Domain DNS Lookup"; dns.query; content:"systembeforeniceparent.com"; nocase; endswith; classtype:targeted-activity; sid:2027411; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_05_31, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag APT28, updated_at 2020_09_17;)