Rule History

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed Lazarus Group Domain (job4writers .com) in TLS SNI"; flow:established,to_server; tls.sni; bsize:15; content:"job4writers.com"; fast_pattern; reference:url,www.verfassungsschutz.de/SharedDocs/publikationen/DE/cyberabwehr/2024-02-19-joint-cyber-security-advisory-englisch.pdf?__blob=publicationFile&v=2; classtype:trojan-activity; sid:2051018; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2024_02_21, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_02_21;)