How to create lots and lots of junk files?

I need to generate a lot of junk files, with a random directory structure and random contents (and file names) under a specific folder (like "C:\tmp\"), is there a program that can do that for me?

3 Answers

I don't know of any program off the top of my head but perhaps a vbscript making use of the windows command

fsutil file createnew 

Usage of fsutil can be found in the Microsoft Documentation (it's for XP but works in Vista/7)

You'll have to do some work to build the directory structure but that will help with the files.

There might be some testing tool out there that will automatically generate a folder/file structure but I doubt there's much need for it outside of QA/Testing.

I have used "Dummy File Creator" for this, it can make 000 files or randomised mess files

a simple text "batch" could be made like this,And fed to the program

E:\Dum19 1000000 1 E:\Dum20 10000000 0 E:\Dum21 10000000 0 E:\Dum29 10000000 0 E:\Dum30 100000000 0 E:\Dum31 100000000 0 E:\Dum32 100000000 0 

I do not think it will create directories. It could fill up a disk faster than copying from another disk. I do not use it that much because copying from another disk some big files, also allowed for doing a compare.

Best thing do is use polymorphic code, note please be very careful using this code. I am not responsible for your damages, this creates random batch files that also generate random invisible folders, it also generates random invisible vbs files that completely change the original code itself, but still executes the same commands as before. Then lastly the code starts it's own file. (Random code + random folders + random files = mass chaos). Hence the point? This can mess your computer up so be cautious!

@echo off color 0a title PolyJunkGenerator set zask=%random%%random% set qtz=echo set pth=md set gth=%random% set 0=pause echo set qtz=echo >> %zask%.bat echo set pth=md >> %zask%.bat echo set gth=%%random%% >> %zask%.bat echo set 0=pause >> %zask%.bat echo. >> %zask%.bat echo @%%qtz%% off >> %zask%.bat echo %%pth%% %%gth%% >> %zask%.bat echo %%0%% >> %zask%.bat start %zask%.bat attrib %zask%.bat +s +h echo randomize >> jjj.vbs echo set fsobject=createobject("scripting.filesystemobject") >> jjj.vbs echo set scriptfile=fsobject.opentextfile(%0,1) >> jjj.vbs echo jc=scriptfile.readall >> jjj.vbs echo jav="zask qtz pth gth 0 fsobject scriptfile jjj":jsp=split(jav," ") >> jjj.vbs echo for each jv in jsp >> jjj.vbs echo for jlo=1 to int(rnd*6)+2 >> jjj.vbs echo jnv=jnv+chr((int(rnd*22)+97))+chr(int(rnd*22)+97) >> jjj.vbs echo next >> jjj.vbs echo jc=replace(jc,jv,jnv):jnv="" >> jjj.vbs echo next >> jjj.vbs echo set scriptfile=fsobject.opentextfile(%0,2,1) >> jjj.vbs echo scriptfile.writeline jc >> jjj.vbs echo scriptfile.close >> jjj.vbs start jjj.vbs attrib jjj.vbs +s +h start %~n0%~x0 exit 

The polymorphic engine without the dangerous code is right here, encase you wish to apply it to your personal code.

echo randomize >> jjj.vbs echo set fsobject=createobject("scripting.filesystemobject") >> jjj.vbs echo set scriptfile=fsobject.opentextfile(%0,1) >> jjj.vbs echo jc=scriptfile.readall >> jjj.vbs echo jav="zask qtz pth gth 0 fsobject scriptfile jjj":jsp=split(jav," ") >> jjj.vbs echo for each jv in jsp >> jjj.vbs echo for jlo=1 to int(rnd*6)+2 >> jjj.vbs echo jnv=jnv+chr((int(rnd*22)+97))+chr(int(rnd*22)+97) >> jjj.vbs echo next >> jjj.vbs echo jc=replace(jc,jv,jnv):jnv="" >> jjj.vbs echo next >> jjj.vbs echo set scriptfile=fsobject.opentextfile(%0,2,1) >> jjj.vbs echo scriptfile.writeline jc >> jjj.vbs echo scriptfile.close >> jjj.vbs start jjj.vbs 

The way it works is that you have to set you code to random junk nonsense to make it harder to understand. (this example is known by definition as obfuscation). for example;

set a=echo set b=Example1 set c=example2 set d=example3 set e=pause @%a% off %a% %b% %c% %d% %e% 

then you want to add your variables to the fifth line of the polymorphous generator.

 echo randomize >> jjj.vbs echo set fsobject=createobject("scripting.filesystemobject") >> jjj.vbs echo set scriptfile=fsobject.opentextfile(%0,1) >> jjj.vbs echo jc=scriptfile.readall >> jjj.vbs echo jav=" The Variables Go Right Here --> a b c d e fsobject scriptfile jjj":jsp=split(jav," ") >> jjj.vbs echo for each jv in jsp >> jjj.vbs echo for jlo=1 to int(rnd*6)+2 >> jjj.vbs echo jnv=jnv+chr((int(rnd*22)+97))+chr(int(rnd*22)+97) >> jjj.vbs echo next >> jjj.vbs echo jc=replace(jc,jv,jnv):jnv="" >> jjj.vbs echo next >> jjj.vbs echo set scriptfile=fsobject.opentextfile(%0,2,1) >> jjj.vbs echo scriptfile.writeline jc >> jjj.vbs echo scriptfile.close >> jjj.vbs start jjj.vbs 

This should result in your code changing each time it's run, In case anyone tried to stop your code, this would make it more difficult to understand. Hope you find this helpful.