Versions (2)
Version DetailsCurrent
Rev: 2 • Apr 22, 2022, 12:00 PMET MALWARE Observed DNS Query to Certishell Domain (msrousinov .cz)
alert dns $HOME_NET any -> any any (msg:"ET MALWARE Observed DNS Query to Certishell Domain (msrousinov .cz)"; dns.query; content:"msrousinov.cz"; nocase; bsize:13; reference:url,decoded.avast.io/danielbenes/warez-users-fell-for-certishell/; classtype:trojan-activity; sid:2036324; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_04_22, deployment Perimeter, deprecation_reason Age, malware_family Certishell, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_08_21, reviewed_at 2023_08_21;)
Apr 22, 2022, 12:00 PM
Aug 21, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
May 30, 2025, 12:04 AM
rules/emerging-malware.rules