alert dns $HOME_NET any -> any any (msg:"ET MALWARE Turla DNS Lookup (vision2030 .cf)"; dns.query; content:"vision2030.cf"; nocase; endswith; reference:url,www.symantec.com/blogs/threat-intelligence/waterbug-espionage-governments; classtype:targeted-activity; sid:2027502; rev:3; metadata:attack_target Client_Endpoint, created_at 2019_06_20, deployment Perimeter, malware_family Turla, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_17;)