56100.rar Apr 2026

The challenge involves a recursive "Russian Doll" style of nested archives where each layer requires a different extraction or decoding technique to proceed to the next. Challenge Write-up: "Deep"

As you progress, the file extensions may be misleading or missing. You must use the file command in Linux to identify the true format. : file [filename] Common Formats Encountered : Zip/RAR/Tar : Standard archives. Gzip/Bzip2 : Compressed files. XZ : High-compression format. 3. Handling Password Protection 56100.rar

: If the content looks like random alphanumeric characters ending in = , use base64 -d . The challenge involves a recursive "Russian Doll" style

: If the file is p@ssword.zip , the password is often p@ssword . 4. Decoding and Hex Analysis Some layers may not be archives but encoded text files. : file [filename] Common Formats Encountered : Zip/RAR/Tar

: cat flag.txt to retrieve the flag string (e.g., HTB{d33p_1nt0_th3_v01d} ).

: Because this challenge is repetitive, many participants use a bash script or Python script to loop the file identification and extraction commands until the flag is reached.

At various layers, you will encounter password-protected archives.