alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS SFML User-Agent (libsfml-network)"; flow:established,to_server; http.user_agent; content:"libsfml-network/"; depth:16; fast_pattern; reference:url,github.com/SFML; classtype:trojan-activity; sid:2026914; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_02_14, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, updated_at 2020_08_27;)