If you are using these for legitimate security research or testing your own network, it is safest to look for versions on reputable open-source or developer platforms: SourceForge
Some versions of Dumpper v.80.9.exe have been flagged by security vendors as containing Trojans or "Maldoc Downloaders". Always scan downloads using a tool like VirusTotal. download dumpper v809 jumpstart full
Make sure your Wi-Fi is turned on and that you have the latest .NET Framework installed. If you are using these for legitimate security