Beware of the death zip and the snowball effect!

42.zip It is a 42.374 byte zip file. It contains 16 zips files which in turn contain another 16 zips and so on up to 6 times. The last 16 zips contain a file of 4,3 Gb each. If we decompress the file 42.zip of 42.374 bytes we would obtain 4.5 Pb of decompressed data.

16 x 4294967295 = 68.719.476.720 (68GB)
16 x 68719476720 = 1.099.511.627.520 (1TB)
16 x 1099511627520 = 17.592.186.040.320 (17TB)
16 x 17592186040320 = 281.474.976.645.120 (281TB)
16 x 281474976645120 = 4.503.599.626.321.920 (4,5PB)

These types of files are called Zips of death or Zips bomb and are often used as a tool to DoS attacks.

Via | www.unforgettable.dk/


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  1.   alex xhembe said

    Hahaha pray!
    As if to test it in the uni,… .. the bad thing is that I think it will take «a little» to decompress hahaha ...

  2.   zlatan24 said

    My mother had some problems with zip files but I advised an instrument that solved all complications in this and possible other situations as well - repair invalid .zip files.