alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (
msg:"ET WEB_SPECIFIC_APPS Microhard Systems 3G/4G Cellular Ethernet and Serial Gateway - Startup Script";
flow:established,to_server;
http.uri;
content:"/system-startup.sh"; fast_pattern;
http.request_body;
content:"/etc/init.d";
content:"#!/bin/sh";
reference:url,exploit-db.com/exploits/45036/;
classtype:attempted-user;
sid:2025857; rev:2;
metadata:attack_target Server, created_at 2018_07_17, deployment Datacenter, performance_impact Low, signature_severity Major, updated_at 2020_08_25;
)