alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
msg:"ET WEB_SERVER Insomnia Shell HTTP Request";
flow:to_server,established;
http.method;
content:"POST";
http.uri;
content:".aspx";
http.request_body;
content:"txtRemoteHost="; fast_pattern;
content:"txtRemotePort="; distance:0;
content:"txtBindPort="; distance:0;
content:"txtPipeName="; distance:0;
reference:url,www.insomniasec.com/releases;
classtype:trojan-activity;
sid:2019899; rev:3;
metadata:created_at 2014_12_09, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_05_14;
)