# Steganography

## Introduction

Steganography is the practice of concealing a message within another message or a physical object. In computing/electronic contexts, a computer file, message, image, or video is concealed within another file, message, image, or video.

## Timestomp

Timestomp is a **utility co-authored** by developers James C. Foster and Vincent Liu. The software's goal is to allow for the deletion or modification of timestamp-related information in files. The "Timestomp MACE Change Proof" screenshot is a final shot of the operating system's interpretation of the modified timestamp.

{% embed url="<https://www.offensive-security.com/metasploit-unleashed/timestomp>" %}

```
timestomp seceret.txt. -m "02/11/2021 08:06:04"
    • -m → Modify Values
    • -a → Accessed
    • -c → Created
```

## Hiding Files using New Technology File System(NTFS) Streams

{% embed url="<https://www.howtogeek.com/howto/windows-vista/stupid-geek-tricks-hide-data-in-a-secret-text-file-compartment>" %}

## Snow

Snow is a free steganography tool to hide messages in text using white spaces. It takes a file from you and then hides the specified message after encrypting it using a password that you specify. You can hide any message in any text file and then simply retrieve it in an easy way. After hiding sensitive information in a text file, you can send that to any user via email or file-sharing services and then don’t worry about if someone steals the information as the message is encrypted.

#### Encryption

```
snow -C -m "Secret Text Goes Here!" -p "magic" readme.txt readme2.txt
    • -m → Set your message
    • -p → Set your password
```

#### Decryption

```
./snow -C -p "magic" output.txt
```

{% embed url="<https://www.ilovefreesoftware.com/01/windows/free-steganography-tool-to-hide-message-in-text-using-white-spaces.html>" %}

## OpenStego

OpenStego provides two main functionalities:

* **Data Hiding:** It can hide any data within a cover file (e.g. images).
* **Watermarking (beta):** Watermarking files (e.g. images) with an invisible signature. It can be used to detect unauthorized file copying.

{% embed url="<https://www.openstego.com>" %}