Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT Possible PurpleFox EK Framework URI Struct Flash Request"; flow:established,to_server; urilen:>60; http.method; content:"GET"; http.uri; pcre:"/^\/(?!(?:[a-z]{16}|[0-9]{16}))[a-zA-Z0-9]{16}\/[a-z.-]+\/[a-f0-9]{40}\/[a-z.-]+\/[a-z0-9]+\.swf$/"; http.host; content:"rawcdn.githack.com"; fast_pattern; classtype:exploit-kit; sid:2028980; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_11_14, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_21;)