alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING vibe.d Library User-Agent"; flow:established,to_server; http.user_agent; content:"vibe.d/"; fast_pattern; startswith; reference:url,vibed.org; reference:md5,96d98c83daf368066efe3dd41a0dc622; classtype:bad-unknown; sid:2049683; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_12_12, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_12; target:src_ip;)