alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE TrickBot Related Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; bsize:20; content:"/r/tomkruzback.bazar"; fast_pattern; http.host; content:"dns."; http.user_agent; content:"curl/"; startswith; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; content:!"|0d 0a|accept"; reference:md5,ad938b03f3719bf14f1e14c90a73ff2b; classtype:trojan-activity; sid:2033660; rev:4; metadata:attack_target Client_Endpoint, created_at 2021_07_16, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_20;)