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Rev: 4 • Sep 21, 2021, 12:00 PMET PHISHING PerSwaysion Phishkit Javascript - Observed Repetitive Custom CSS Components
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET PHISHING PerSwaysion Phishkit Javascript - Observed Repetitive Custom CSS Components"; flow:established,to_client; http.stat_code; content:"200"; file.data; content:"themes/css/"; fast_pattern; pcre:"/^[a-f0-9]{42}\.css\x27\x29\.then\x28(?:.{1,1000}themes\/css\/[a-f0-9]{42}\.css\x27\x29\.then\x28){5,}/Rsi"; reference:url,blog.group-ib.com/perswaysion; classtype:credential-theft; sid:2034001; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_09_21, deployment Perimeter, performance_impact Moderate, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_10_05;)
Sep 21, 2021, 12:00 PM
Oct 5, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 8, 2025, 9:34 PM
rules/emerging-phishing.rules