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Rev: 1 • Apr 5, 2021, 12:00 PMET EXPLOIT_KIT Possible PurpleFox EK Redirect M2
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Possible PurpleFox EK Redirect M2"; flow:established,to_client; http.stat_code; content:"302"; http.location; content:"?key="; fast_pattern; content:"&id="; distance:16; within:4; content:"&gid="; pcre:"/key=[A-F0-9]{16}&id=\d+&gid=[A-F0-9\-]+$/"; file.data; content:"<body>"; content:"<a HREF=|22|http"; distance:0; content:"?key="; within:400; pcre:"/^[A-F0-9]{16}(?:&|&\x3b)id=\d+(?:&|&\x3b)gid=[A-F0-9\-]+\x22>/R"; content:!"<html>"; reference:url,twitter.com/nao_sec/status/1378546891349106692; classtype:exploit-kit; sid:2032480; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_04_05, deployment Perimeter, malware_family PurpleFox, confidence Medium, signature_severity Major, tag Exploit_Kit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_04_05;)Apr 5, 2021, 12:00 PM
Apr 5, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 12, 2025, 9:34 PM
rules/emerging-exploit_kit.rules