alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Possible Obfuscator io JavaScript Obfuscation"; flow:established,to_client; flowbits:isnotset,ET.obfuscator_io_exclusion; http.response_body; content:"|3d 27|abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789|2b 2f 3d 27 3b|var|20|"; fast_pattern; pcre:"/function(\s_0x[0-9a-f]{4})?\(_0x[0-9a-f]{6},_0x[0-9a-f]{6}\){var _0x[0-9a-f]{6}=/Qi"; reference:url,obfuscator.io; classtype:trojan-activity; sid:2038501; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_08_11, deployment Perimeter, confidence Low, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_06, reviewed_at 2023_08_31;)