alert dns $HOME_NET any -> any any (msg:"ET MALWARE FIN8 ShellTea CnC in DNS Query"; dns.query; content:"nduropasture.net"; nocase; endswith; reference:url,atr-blog.gigamon.com/2019/07/23/abadbabe-8badf00d:-discovering-badhatch-and-a-detailed-look-at-fin8's-tooling/; classtype:command-and-control; sid:2027750; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2019_07_23, deployment Perimeter, confidence High, signature_severity Major, updated_at 2020_09_17;)