alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO SyncroMSP Remote Remote Management Software Install Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/device_api/device"; bsize:18; fast_pattern; http_content_type; content:"application/json|3b 20|"; startswith; http.request_body; content:"|22|shop_api_key|22|"; content:"|22|customer_name|22|"; distance:0; content:"|22|applications|22|"; distance:0; classtype:misc-activity; sid:2042882; 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;)