Here&#x27;s a fascinating thought.<p>It should be possible to write an archive file that decompresses to a slightly different archive file. Say, the original archive file plus a zero byte. (Things get hairy because of the checksum in most archive file formats, but it still should be possible.)<p>Then a malicious party writes an archive file that decompresses to <i>two</i> slightly different archive files. And sets it up so that, say, 128 levels in iff you follow a specific path in said tree you get to the actual malicious content. You can&#x27;t get to it unless you follow the specific path, and you can&#x27;t find it unless you do substantially more than just naively decompressing files (as you won&#x27;t be able to decompress 2<i></i>129-1 files).