Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING PerSwaysion JavaScript Response M2"; flow:established,to_client; file.data; content:"var _0x"; startswith; content:"|3d 5b 22|"; distance:4; within:3; content:"|3b|var|20 5f|0x"; distance:0; content:"|3d|function|28|"; within:14; content:"|5b 78 3d 2b 78 5d 3b 76 6f 69 64 20 30 3d 3d 3d 5f 30 78|"; distance:18; within:19; fast_pattern; content:"|2e|replace|28 2f 3d 2b 24 2f 2c 22 22 29|"; distance:86; within:18; content:"return|20|decodeURIComponent|28|"; distance:0; classtype:credential-theft; sid:2033053; rev:2; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2021_05_28, deployment Perimeter, confidence Medium, signature_severity Major, tag Phishing, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_05_28, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1566, mitre_technique_name Phishing;)