Versions (4)
Version DetailsCurrent
Rev: 1 • May 8, 2024, 12:00 PMET WEB_CLIENT Suspected BeEF Related JS Activity (evercookie)
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Suspected BeEF Related JS Activity (evercookie)"; flow:established,to_client; file.data; content:"var|20|ec|20 3d 20|new evercookie|28 29|"; fast_pattern; content:"ec.set|28 22|id|22|"; distance:0; reference:url,beefproject.com/; classtype:attempted-user; sid:2052504; rev:1; metadata:attack_target Client_Endpoint, created_at 2024_05_08, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_05_08, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1189, mitre_technique_name Drive_by_Compromise; target:dest_ip;)
May 8, 2024, 12:00 PM
May 8, 2024, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 11, 2025, 10:35 PM
rules/emerging-web_client.rules