Latest Crawler masscan user agents:

User Agent PlatformDevice
Mozilla/5.0 (compatible; masscanner/0.1) UnknownUnknown
masscan/1.3 (https://github.com/robertdavidgraham/masscan) UnknownUnknown
masscan/1.3 UnknownUnknown
masscan/1.0 (https://github.com/robertdavidgraham/masscan) UnknownUnknown
Masscan/1.0 UnknownUnknown
ivre-masscan/1.3 https://ivre.rocks/ UnknownUnknown
ivre-masscan/1.3 https://github.com/robertdavidgraham/ UnknownUnknown