alert http1 $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT NuclearPack - JAR Naming Algorithm"; flow:established,to_client; http.header; content:"-Disposition|3a 20|inline"; nocase; content:".jar"; pcre:"/=[.\"]\w{8}\.jar$/mi"; file.data; content:"PK"; fast_pattern; startswith; classtype:exploit-kit; sid:2014913; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2012_06_16, deployment Perimeter, malware_family Nuclear, signature_severity Critical, tag Exploit_Kit, tag Nuclear, updated_at 2024_05_06;)