alert dns $HOME_NET any -> any any (msg:"ET MALWARE Turla SHIRIME DNS Lookup"; dns.query; content:"tnsc.webredirect.org"; depth:20; nocase; endswith; fast_pattern; reference:url,www.fireeye.com/blog/threat-research/2017/05/eps-processing-zero-days.html; classtype:targeted-activity; sid:2024286; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_05_09, deployment Perimeter, malware_family Turla, malware_family SHIRIME, performance_impact Low, confidence Medium, signature_severity Major, tag APT, tag 0day, updated_at 2020_09_17;)