alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE SysJoker Successful Command Execution (POST)";
flow:established,to_server;
urilen:12;
http.method;
content:"POST";
http.uri;
content:"/api/req/res"; fast_pattern;
http.content_type;
content:"application/x-www-form-urlencoded"; bsize:33;
http.request_body;
content:"|7b 22|status|22 3a 22|success|22 7d|"; bsize:20;
reference:url,research.checkpoint.com/2023/israel-hamas-war-spotlight-shaking-the-rust-off-sysjoker;
reference:url,intezer.com/blog/research/wildcard-evolution-of-sysjoker-cyber-threat;
classtype:trojan-activity;
sid:2049300; rev:1;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_11_27, deployment Perimeter, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_27;
)