Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to Certishell Domain (ms .rousinov .cz)"; dns.query; content:"ms.rousinov.cz"; nocase; bsize:14; reference:url,decoded.avast.io/danielbenes/warez-users-fell-for-certishell/; classtype:trojan-activity; sid:2036331; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_04_22, deployment Perimeter, malware_family Certishell, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_09_12, reviewed_at 2024_09_12;)