alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING RedditSharp UA in POST (POST)"; flow:established,to_server; http.method; content:"POST"; http.user_agent; content:"with|20|RedditSharp|20|by"; fast_pattern; http.header_names; content:!"Referer"; classtype:bad-unknown; sid:2042883; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_12_14, deployment Perimeter, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_14;)