alert dns $HOME_NET any -> any any (msg:"ET MALWARE CryptoWall/TeslaCrypt Payment Domain"; dns.query; content:"wallymac.com"; startswith; nocase; endswith; fast_pattern; classtype:trojan-activity; sid:2023332; rev:6; metadata:attack_target Client_Endpoint, created_at 2016_10_07, deployment Perimeter, confidence High, signature_severity Major, tag Ransomware, updated_at 2024_04_13;)