alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Netbounce Related Activity (Program Wrapper)"; flow:established,to_client; http.stat_code; content:"200"; http.content_type; content:"application/json"; bsize:16; file.data; content:"|5c 5c|Trackingfolder084|5c 5c|start.txt|22 0a|"; fast_pattern; reference:url,www.fortinet.com/blog/threat-research/netbounce-threat-actor-tries-bold-approach-to-evade-detection; reference:md5,1daccddd902156737587a2041224b46b; classtype:trojan-activity; sid:2032222; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_03_19, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_03_19;)