alert dns $HOME_NET any -> any any (msg:"ET MALWARE SteamStealer DNS Lookup (steamdesktopauthenticator)"; dns.query; content:"steamdesktopauthenticator.com"; nocase; endswith; reference:url,bartblaze.blogspot.co.uk/2018/02/fake-steam-desktop-authenticator-steals.html; classtype:trojan-activity; sid:2025386; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_02_26, deployment Perimeter, malware_family Steam_Stealer, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_19;)