SRL Archive - RuneScape News and General

The files jagex puts on your computer


almost

2008-05-25 15:45:45

I've been trying to figure out the uses for these lately and found some interesting things.
For those who don't know, they are the files stored in the .jagex_cache_32 folder on your computer.
Here is a tut about them-
http://www.villavu.com/forum/showthread.php?t=30959

Normally you can't edit them and can't even view them while RuneScape is running, but I got around this by selecting notepad as the default application to open .dat files with.
Now I am allowed to edit and save these files as what I want even while RS is up using notepad.

I made a script to detect when the files change, so I could see when Jagex updates them. (Below)
The only times it seems it can be updated automatically are when you first start to load a world and when you log in on a character.
But it doesn't update every time…
I can only get the random.dat file to change after I have first changed it myself.
It seems to detect that it was edited and then it gets changed back to 24 random characters.
Also if you change it to more than 24 characters and try to load a world, it will be cleared and have nothing in it.
Then when you log in on an account it will be updated to the normal 24 random characters.
So maybe the length of what is in it is how they know it has been changed?
I edited the random.dat to have 24 characters, and found that it STAYS!
They don't change it back when you load worlds/ log in.
You can just put in aaaaaaaaaaaaaaaaaaaaaaaa and it will stay.

There are a few other files Jagex stores on your computer too, but they don't seem to be as important as random.dat.
I cleared out all the other files and can't seem to find a way for them to be updated again.
They just stay blank.

The characters generated into random.dat don't seem to follow any pattern at all no matter what i do.
What world, when, what character i use, nothing makes any kind of pattern…

My hope with this is maybe you could take the files from one computer that has always been played legit on and put what is in those into the files of your computer that you auto on and be recognized as a "clean player".
Maybe this is why i seem to get more randoms on my autoer computer than any other computer, and especially WHILE autoing.

So here is the script i made.
If you'd like to help me you can run this and send me what it gives you.
I'd like to find out when the other files get updated, or how to update them.
Also i think i've seen people that get their random.dat filled with a different amount of characters than 24.
If this happens i'd like to know about that too.
I also wonder if everyone has the same files saved.
Here is what i have-

Under the main folder-
.jagex_cache_32 -> main_file_cache.dat2, main_file_cache.idx255, and random.dat

Folder inside main folder-
Loginapplet -> cache-1965029828, cache–444661539, main_file_cache.dat2, and main_file_cache.idx255.

hylian_loach

2008-05-26 06:36:55


Normally you can't edit them and can't even view them while RuneScape is running, but I got around this by selecting notepad as the default application to open .dat files with.
Now I am allowed to edit and save these files as what I want even while RS is up using notepad.
You can use Notepad++ and it alerts you when the files have been changed.

I haven't done research on it, but maybe the random sequence of letters is a unique ID which is an identifier for your computer. So jagex can tell when the exact same computer is on - even though it may be a dynamic IP

That would be rather scary, considering if you used a Proxy, they could still identify that it was the exact same machine.

But I hope that's not true. Besides, if jagex was somehow collecting data about our computer and identifying us, I can sense a possible lawsuit.

almost

2008-05-26 11:38:13

Could be but i doubt it because the code thing completely changes every time it is updated.
It seems to be pretty random.

So does ANYONE feel like helping me?…

Harry

2008-05-26 11:51:17

Lol, so you want a list of my files in JagexCache? kk…

Folders:
RSMap
Runescape

Files in main directory:
Random.dat

Files in RSMap
main_file_cache.dat0
main_file_cache.idx0
main_file_cache.idx1

files in Runescape
main_file_cache.idx9
main_file_cache.idx23
main_file_cache.idx10
main_file_cache.idx24
main_file_cache.idx25
main_file_cache.idx22
main_file_cache.idx17
main_file_cache.idx21
main_file_cache.idx255
main_file_cache.idx2
main_file_cache.idx19
main_file_cache.idx18
main_file_cache.idx20
main_file_cache.idx16
^^ All 1kb in size… Now I am starting to think the Random.dat is just a distraction from the real trackers - those above files.
main_file_cache.idx15
main_file_cache.idx11
main_file_cache.idx14
main_file_cache.idx6
main_file_cache.idx3
main_file_cache.idx13
main_file_cache.idx12
main_file_cache.idx8
main_file_cache.idx1
main_file_cache.idx5
main_file_cache.idx0
main_file_cache.idx4
^^ All the above are <30 kb in size.
main_file_cache.idx7 - 202 kb
main_file_cache.dat0 - 327 kb
main_file_cache.dat2 - 53,093 kb.

Happy now? :p


Edit: I used to have a loginapplet folder - but I deleted it a while ago, and it was not needed for anything except for tracking you I think.

almost

2008-05-26 19:27:31

That's it thanks.
But now i really wonder a lot of stuff.
Like why you have so many and i don't.
Confusing.