alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT DRIVEBY Generic - 8Char.JAR Naming Algorithm"; flow:established,to_client; http.header; content:"-Disposition|3a 20|inline"; nocase; content:".jar"; fast_pattern; pcre:"/[=\"]\w{8}\.jar/i"; file.data; content:"PK"; within:2; classtype:exploit-kit; sid:2015695; rev:6; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2012_09_11, deployment Perimeter, confidence Medium, signature_severity Major, tag DriveBy, updated_at 2020_09_17;)