> For the complete documentation index, see [llms.txt](https://cajac.gitbook.io/ctf-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cajac.gitbook.io/ctf-notes/misc/steganography/steghide.md).

# Steghide

## Display information

Display information on a stego-file

```bash
┌──(kali㉿kali)-[~]
└─$ steghide info Extinction.jpg       
"Extinction.jpg":
  format: jpeg
  capacity: 1.3 KB
Try to get information about embedded data ? (y/n) y
Enter passphrase: 
  embedded file "Final_message.txt":
    size: 79.0 Byte
    encrypted: rijndael-128, cbc
    compressed: yes
```

## Extract embedded data

Extract embedded data from stego-file (`-sf`)

```bash
steghide extract -sf stegosteg.jpg 
```

Extract embedded data and supplying the password as a parameter (`-p`)

```bash
steghide extract -sf cute-alien.jpg -p Area51
```

## Usage information

<details>

<summary>steghide --help</summary>

```bash
┌──(kali㉿kali)-[~]
└─$ steghide --help
steghide version 0.5.1

the first argument must be one of the following:
 embed, --embed          embed data
 extract, --extract      extract data
 info, --info            display information about a cover- or stego-file
   info <filename>       display information about <filename>
 encinfo, --encinfo      display a list of supported encryption algorithms
 version, --version      display version information
 license, --license      display steghide's license
 help, --help            display this usage information

embedding options:
 -ef, --embedfile        select file to be embedded
   -ef <filename>        embed the file <filename>
 -cf, --coverfile        select cover-file
   -cf <filename>        embed into the file <filename>
 -p, --passphrase        specify passphrase
   -p <passphrase>       use <passphrase> to embed data
 -sf, --stegofile        select stego file
   -sf <filename>        write result to <filename> instead of cover-file
 -e, --encryption        select encryption parameters
   -e <a>[<m>]|<m>[<a>]  specify an encryption algorithm and/or mode
   -e none               do not encrypt data before embedding
 -z, --compress          compress data before embedding (default)
   -z <l>                 using level <l> (1 best speed...9 best compression)
 -Z, --dontcompress      do not compress data before embedding
 -K, --nochecksum        do not embed crc32 checksum of embedded data
 -N, --dontembedname     do not embed the name of the original file
 -f, --force             overwrite existing files
 -q, --quiet             suppress information messages
 -v, --verbose           display detailed information

extracting options:
 -sf, --stegofile        select stego file
   -sf <filename>        extract data from <filename>
 -p, --passphrase        specify passphrase
   -p <passphrase>       use <passphrase> to extract data
 -xf, --extractfile      select file name for extracted data
   -xf <filename>        write the extracted data to <filename>
 -f, --force             overwrite existing files
 -q, --quiet             suppress information messages
 -v, --verbose           display detailed information

options for the info command:
 -p, --passphrase        specify passphrase
   -p <passphrase>       use <passphrase> to get info about embedded data

To embed emb.txt in cvr.jpg: steghide embed -cf cvr.jpg -ef emb.txt
To extract embedded data from stg.jpg: steghide extract -sf stg.jpg

```

</details>

## Resources

steghide - Homepage: <https://steghide.sourceforge.net/>

steghide - Kali Tools: <https://www.kali.org/tools/steghide/>