Versions (2)
Version DetailsCurrent
Rev: 1 • Aug 20, 2025, 12:00 PMET INFO Observed DNS Query to Abused File Sharing Service (nullarmorupload .xyz)
alert dns $HOME_NET any -> any any (msg:"ET INFO Observed DNS Query to Abused File Sharing Service (nullarmorupload .xyz)"; dns.query; dotprefix; content:".nullarmorupload.xyz"; nocase; endswith; reference:md5,d39848a04361b13b0d3c56a84cf5cfd4; classtype:misc-activity; sid:2064061; rev:1; metadata:attack_target Client_Endpoint, created_at 2025_08_20, deployment Perimeter, confidence High, signature_severity Informational, tag FileSharing, tag TA_Abused_Online_Service, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_08_20;)
Aug 20, 2025, 12:00 PM
Aug 20, 2025, 12:00 PM
Aug 20, 2025, 9:35 PM
Aug 21, 2025, 9:36 PM
rules/emerging-info.rules