The Zip of death

This is a exploit of the compression algorithms to make a small zip that will extract into extream amounts their are more ways and better ones than this one but i will only show how to make a simple 1k = 1m ratio.

1) Make a.txt file

2) Open and type the null character (alt + 255)

3) Press ctrl + a then ctrl + v a couple times to make some null bytes

4) If u have a hexeditor make the hex 00 for about 50 kilobytes.

5) Now make several copies of a.txt and name accordinly

6) Open cmd.exe

7) Type copy /b *.txt b.txt

8) Now every copy is made into a super copy and repeat

9) Once you have a nice empty big text file like 1gb. Put it in a zip archive.
Because of the simple construction of the file, 1gb of null bytes…..!

The zip is only 1 mb in size and can really annoy freinds.
For added fun hex edit the zip and you will see a bunch of hex 5555

Just add some more and the file will expand amazingly