Browser that can see what files are published on the Winny network "Nyzilla"

File sharing software "WinnyBrowser that allows you to see what files are published on the network "Nyzilla"Has been released. This is a security researcher who had previously observed the Winny network ·Hiroki TakagiWhat Mr. created. Since it is not a file sharing software, there is no upload function and download function, it is simply a browser to browse what kind of files are published by one site (PC running Winny) on the network.

Details are as below.
Winny site browser "Nyzilla" - Download

First, download the installer from the site and start it.


Click "Next"


Click "Next"


Confirm the installation destination and click "Next".


Please confirm to which folder of the start menu you want to add and click "Next".


Confirm whether to create shortcut on the desktop. Click "Next".


Confirm the installation settings and click "Next".


Installation is complete. Click "Finish".


Depending on the setting, such an icon appears on the desktop.


When launching the software, the splash screen is displayed first.


The basic screen of "Nyzilla" looks something like this. By specifying the browsing site in the form like "winnytp: //○○○.com: 7743 /", you can browse the file published by that site.


This is a progress graph. "Positive" is the one judged to be possessed by the site, "Negative" is the one judged to be the file that the site does not have. In Winny, random keys are distributed irrespective of the user's intention, and even if you do not have any files, you may possess keys. Nyzilla judges such a key as "negative" and can exclude it from display.


In "other site", the link destination address to other Winny site that was sent to the browsed site is displayed as a list. It seems that it is also possible to display another site from here in a new window.


"Connection status".


It looks like Mr. Takagi actually browsed a site. Although this site seems to have a lot of mp3 (music file), in fact all ".exe" is attached at the end, you can see that it is a site spreading virus.


"If you use Nyzilla, you can grasp the actual state of file distribution in Winny without using Winny," Takagi talks about overseas file sharing software to make you aware of what you are publishing Since Winny is not so, Winny users explain the purpose of releasing the software that you can be aware of what kind of file you are publishing by using Nyzilla.

Hiroki Takagi @ home diary - Nyzilla 1.0 release