goMS17-010 detects if host(s) is vulnerable to SMB exploit(MS17-010), which is used by NSA hacking tools leaked by Shadow Brokers. If it's vulnerable, then checks if the target machine is running the Double Pulsar SMB backdoor. Inspired by this Metasploit module, but doesn't depend on MSF or any framework, just run ms17-010.go or ms17-010.py with option(s). Go version is preferred as it's very fast (credit goroutine for that! ) when scanning a network. The release is built from go code.
-i, detect single host
-n, scan a whole network in CIDR Notation, for example, 192.168.1.1/24
-h, show help
Here is an Android app to check this too. Enable WannaCry Scan toggle in the Settings, the app would scan your network, if any machine is vulnerable, a red warning icon will show.