alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET INFO SyncroMSP Remote Remote Management Software Install Registration";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/device_api/auth/?shop_api_key="; startswith; fast_pattern;
content:"&installer_version="; distance:0;
classtype:misc-activity;
sid:2042881; rev:1;
metadata:attack_target Client_Endpoint, created_at 2022_12_14, deployment Perimeter, deployment SSLDecrypt, malware_family SyncroMSP, performance_impact Low, confidence High, signature_severity Informational, tag RemoteAccessTool, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_12_14;
)