Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed TA417 Domain (availitond .com) in TLS SNI"; flow:established,to_server; tls.sni; dotprefix; content:".availitond.com"; endswith; fast_pattern; reference:url,www.trendmicro.com/en_us/research/24/e/earth-hundun-2.html; classtype:domain-c2; sid:2052669; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2024_05_16, deployment Perimeter, malware_family WATERBEAR, malware_family DEUTERBEAR, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_10_04, reviewed_at 2024_10_04;)