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; content:"/r/tomkruzback.bazar"; fast_pattern; bsize:20; http.host; content:"dns."; http.user_agent; content:"curl/"; startswith; http.header_names; content:!"Referer"; content:!"Accept"; reference:md5,ad938b03f3719bf14f1e14c90a73ff2b; classtype:trojan-activity; sid:2033660; rev:2; 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 2021_08_04;)