Telnet - 23

With the credentials we found in the email previously I was able to telnet in.

telnet 10.10.10.98 23 
Trying 10.10.10.98...
Connected to 10.10.10.98.
Escape character is '^]'.
Welcome to Microsoft Telnet Service 

login: security
password: 

*===============================================================
Microsoft Telnet Server.
*===============================================================
C:\Users\security>whoami
access\security