alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP Win32/Spy.Agent.QCL Variant Activity (POST) M2"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/wiki/Hello_orld_(film)"; bsize:23; fast_pattern; http.content_len; byte_test:0,=,0,0,string,dec; http.header_names; content:!"Referer"; reference:md5,8fe3b7be548ab6bba549ddbfdabc90ed; classtype:pup-activity; sid:2033131; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_06_09, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_09;)