alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO Adobe PDX in HTTP Flowbit Set"; flow:established,to_client; flowbits:set,ET.pdx.in.http; flowbits:noalert; file.data; content:"%PDX-"; within:5; classtype:not-suspicious; sid:2025985; rev:4; metadata:affected_product Adobe_Reader, created_at 2018_08_10, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_14;)