Rule History

alert dns $HOME_NET any -> any any (msg:"ET MALWARE Malicious Domain Observed in DNS Lookup (jslibc .com)"; dns.query; dotprefix; content:".jslibc.com"; nocase; endswith; reference:url,x.com/malwrhunterteam/status/1826882222323794335; classtype:trojan-activity; sid:2055446; rev:2; metadata:attack_target Client_Endpoint, created_at 2024_08_23, deployment Perimeter, deprecation_reason Age, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_04_15, reviewed_at 2025_04_15;)