alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Possible IoT_reaper ELF Binary Request M1 (set)"; flow:established,to_server; urilen:3; flowbits:set,ET.iotreaper; flowbits:noalert; http.method; content:"GET"; http.uri; content:"/sa"; fast_pattern; reference:url,blog.netlab.360.com/iot_reaper-a-rappid-spreading-new-iot-botnet-en/; classtype:trojan-activity; sid:2024924; rev:3; metadata:attack_target IoT, created_at 2017_10_25, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_13;)