alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE WSHRAT CnC Checkin";
flow:established,to_server;
flowbits:set,ET.WSHRAT.1;
http.method;
content:"POST";
http.user_agent;
content:"WSHRAT|7c|"; depth:7; fast_pattern;
content:"|20|-|20|"; distance:0;
classtype:command-and-control;
sid:2027447; rev:2;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_06_10, malware_family WSHRAT, performance_impact Low, confidence High, signature_severity Major, tag RAT, updated_at 2020_08_31;
)