Rule History

alert dns $HOME_NET any -> any any (msg:"ET INFO Abused File Sharing Service (tempfiles .ninja) in DNS Lookup"; dns.query; dotprefix; content:".tempfiles.ninja"; nocase; endswith; classtype:misc-activity; sid:2055403; rev:2; metadata:attack_target Client_Endpoint, created_at 2024_08_22, deployment Perimeter, deprecation_reason Age, confidence High, signature_severity Informational, tag TA_Abused_Service, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_04_15, reviewed_at 2025_04_15;)