alert dns $HOME_NET any -> any any (msg:"ET MALWARE TorrentLocker DNS Lookup (bigcrashcar.net)"; dns.query; content:"bigcrashcar.net"; depth:15; nocase; endswith; fast_pattern; reference:url,welivesecurity.com/wp-content/uploads/2014/12/torrent_locker.pdf; classtype:trojan-activity; sid:2023142; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_08_31, deployment Perimeter, malware_family Ransomware, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2020_09_17;)