Tool by BL4CK to bypass VNC authentication. This is now patched in the latest VNC version, but I do come across quite a few tests running vulnerable versions such as 4.1.1.

You can download the VNC bypass tool by BL4CK below.

http://www.commonexploits.com/downloads/BL4CK-vncviewer-authbypass.zip

MD5: 130702b01ae05baa2741d52aef630ba9