This app scans local WiFi network and recognizes systems with EternalBlue vulnerable SMBv1 protocol. Such systems can get infected with ransomware, such as WannaCry and NotPetya, unless they are updated with the latest security updates or SMBv1 is disabled.
EternalBlue exploit is known from recent ransomware attacks hitting hospitals, banks and thousands companies.
Vulnerability is recognized with the same SMB communication sequence that the exploit uses but no harm is done to systems. The application doesn't contain any malificious code. It implements SMBv1 protocol on top of TCP and reacts to a SMB response which indicates vulnerability.
Intended for users who wish to monitor the networks they own or have permission to. The developer of this app cannot be held responsible for how this app is being used. The app comes with no guarantees.