HowTo: use a proxy server with your PS4 to sniff PSN traffic (SKFU Pr0xy)
The following guide covers the very basics of how to install and run a proxy server on your local computer to use with your PS4. This allows you to study how the PS4 communicates with Sony’s servers, for various reasons. A proxy lets you block some of the traffic (which has been useful in the past to let users access Netflix on their PS3 even when they didn’t have PSN access), or replace some of the traffic with connections to your own server (useful for being able to connect to the PSN on a lower firmware), or simply because you’d like to know what type of information your console sends to Sony’s servers.
Charles proxy is probably the most popular proxy around here, but it is commercial software. Thankfully, scene dev SKFU has been creating and updating his own proxy server for windows, and this is the tool I will be showing today.
There’s nothing really complex with installing and running SKFU’s pr0xy server, but many people assume it’s difficult and don’t even give it a try. Hopefully this tutorial will prove them wrong.
1. Download, install and run SKFU Proxy
Download SKFU Pr0xy here. Just get the zip and extract it to a folder of your choice.
double click on SKFUPr0xy.exe to start the skfu proxy interface. It should look like something like this:
SKFU pr0xy in theory detects your computer’s IP address automatically. This is important because you will need to enter this information in the PS4 later on.
Assuming SKFU pr0xy has correctly detected your IP address, all you need to do is click on the “start” button
2. Setup the proxy connection on your PS4
The PS4 Network settings have options to connect through a proxy, there is no dangerous manipulation involved here. Just go to “Settings”, then “Network”
Go to “Set up internet connection”, then select the default option for every step until you reach the “Proxy Server” step. There, select “Use”.
In the “Address” field, input the IP address of your computer as displayed in SKFU proxy. For the port number, use the port number given to you by SKFU pr0xy (8080 by default, which conveniently also happens to be the default given by the PS4)
For the other steps, select the default answer, and you’re done!
To make sure everything works, test your internet connection on the PS4 (last step of the setting). If things go well, the “internet connection test” should work, and you should start seeing some activity in SKFU pr0xy:
3. Profit
You can now navigate on your PS4, on the PSN, etc… to see how the PS4 communicates with the Sony servers. In the screenshot below, I captured the interaction between the PS4 and Sony’s server when checking for a “Firmware update”. This told me the PS4 firmware update information can be found at http://fus01.ps4.update.playstation.net/update/ps4/list/us/ps4-updatelist.xml. This is of course not groundbreaking information, but that’s the basics.
SKFU Pr0xy offers additional tools to filter some requests, replace some requests with others, etc… it lets you manipulate the queries sent by your PS4 to the Sony network, as well as the replies from the servers themselves. Enjoy 🙂
Troubleshooting
If your PS4 doesn’t find SKFU pr0xy: make sure they are connected on the same network (I personally prefer to plug both the PS4 and the computer through LAN in these conditions, rather than Wifi), and that your router does not block communications through the used port (8080 in that case)
this may be the beginning of a great(?) hack 🙂
This is actually a very common procedure :p.
nothing of PsViTa Exploit???? T_T
Nice guide, thank you.
Wololo, I have some few question about the SKFU Pr0xy. First, can it also work on psvita? Second, if it can, will the vita’s firmware be forced to update to the latest version?
1. Yes
2. Sort of, if you’re one FW behind you can prevent the update for a while, but eventually you’re asked to update again. (Example: You used to be able to get on the PSN using 2.61, while the latest is 3.00, but that was recently “fixed”)
Thank you very much, titegtnodI. However, I still have three questions.
1.Can I download games on PSN through SKFU Pr0xy?
2.Can this program also work on 3ds?
3.If can, will SKFU Pr0xy block the firmware update?
It was originally called PS Vita proxy or Vita Proxy, but as it works on anything, it was changed to SKFU Proxy.
Hello.
This method still works for PS Vita 2.60/2.61?
(For Vita 3.00 no longer works, just to test), thanks.
This method will always work as long as your device supports a proxy.
While there may be a bit of interesting items to gleam, for the most part this is pretty useless, unless you can get a legit cert/key and for the SSL address so you can see the encrypted traffic. Even then, what are the chances that Sony decided to bake the SSL fingerprint of their SSL provider and maybe even their key into the firmware? (Google Chrome does this)
thanks. now im never going to browse confidently with chrome ever again! how dare you warn of potential security threats.. but really. that sounds like a dumb thing to do.
Never browse the Internet confidently, on anything, not ever. Keep in mind though, SSL is better than nothing.
will this also solve my problem of getting NAT type 3?
It’s unlikely.
Can i download ps4 games to pc then make the ps4 download from the pc copy rather than psn?
Can i download ps4 games to pc ,then use proxy to transfer into ps4 later
Can i download to pc and redirect psn link from ps4 to pc just like in ps3 with proxy?
Hello there, I’d like to use the same application to log on PSN o my vita 2.61fw, which method must I follow?, thanks.
wololo , “Because there is no way to sniff SSL on PS3/4 without hacking the certificates, and guess what ? 99% of the PS4 traffic is using SSL.
Thanks Werelds for the explanations you did above, that’s basically what I think about SKFU.”
that’s true?
Well amazed at how many people are yet discovering proxies.
You can also use Squid by the way, if not on Windows.
This topic reminds me I have to try and sniff my PS3 in hopes to sync my trophies (and just that) without getting banned from PSN.
I have been able to sniff a psn downnload link from my ps4 and copy the link to IDM.
NOw I have the psn game downloaded on my pc, but how do I transfer it back to the ps4 like we used to do with the ps3proxy??
Naija guy?
now put the pkg in the right folder and start d download again,email me for a chat,ive not got ps4 yet but you could run some tests,crafteck at gmail. com
i have downloaded the game in pc and now i want transfer the .pkg file into my ps4 …..how to do that ?
reply fast ?
got a ps4,im sc***,my internet isnt good,was hoping to use proxy server,resogun was like 450 mb,i downloaded with proxy and transfered 2 ps4 but couldnt launch it,i bought fifa 14 but each time i try to download it,it comes up as 4 gb instead of 9gb….helllppp…im hoping theres a proxy server that can help out
now using skfu proxy,seems the download of fifa which is meant 2 be 9gb is broken into 3,4.xxgb,4.xxgb and 345 mb…will try downloading in parts and try feeding files back 2 ps4,really wish sum1 could help
Hi I have a question about the proxy,
Can I use this to see ip addresses of people I’m connected to?
Thanks!
On my ps4, i put the adress and it goes again to proxy server…. 🙁 What i have to do?
i have downloaded the game in pc and now i want transfer the .pkg file into my ps4 …..how to do that ?
reply fast ?
well use the “Playstation 4 Updater” app on your smartphone
Is there anyway this program can be used to redirect quieres and such while playing call of duty games in order to force host? or to boot other players? or to flood data of XP to somehow get max prestige?
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are there howto’s or tutorials or hacks developed for skfu proxy3 yet ?
or howto use the proxy with a webkitpsvita1.2.exe ? for latest if possible or just 3.18 (3.20 tv) mode.
i liked the logging proxy better tho skfu,
u think u could add a page to it called log.
that like ps3 proxy server gui lets u copy the replacement url or link ?
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