This uses digital images as malware carriers where attackers first encrypt the message, hide it in a wide palette of the cover image. Sleep patched malware is not detected by sandbox as it is benign and takes time to be detected. Sandboxes are sued to detect these corrupt files but hackers have invented ways like sleep patching to bypass these. Once the target downloads the file, the malware is introduced in the computer that allows the hacker or attacker to access the device. The attacker identifies the least significant bits of information in the carrier file and substitutes it with the secret message, in most cases, malicious code. Some of the techniques used are: A) Least Significant bit Steganography techniques used help in concealing the message to the best possible extent to ensure that it is revealed only at the destination. It is widely used in Microsoft Word documents.
Steganography uses code#
Using a widely available cover source like a book or newspaper and using a code comprising of a combination of numbers, letters, or line number.Hiding information in plain text by adding white space and tabs to the end of the lines of documents.Most people can read documents and therefore there are several ways in which this can be achieved. This involves focusing on altering the characteristics of documents. In this, a video file will be embedded with supplementary data that will hide the secret message. Implanting a secret message in audio is most difficult as the human brain has a wide range of auditory capacity. The most common are: A) Steganography in Imagesĭigital images are used widely and since they are available in various formats the algorithm used differs completely. There are different types of steganography. In this way the secret message is hidden. When a file or image is created, some bytes in the file or image are not necessary and can be replaced with a message without destroying the original message. There are different ways to hide a message. It works by replacing some parts of useless or unused data in usual computer files ( for eg: text, HTML, audio, or graphics) with bits of invisible and different information. The art and science of masking information by embedding messages within something that may seem harmless. What is steganography and how it works is the question most people would ask. Steganography definition elaborates how it hides data and does not involve scrambling or using a key or code. It differs from cryptography which is a science that enables privacy.
The message can be concealed through any medium. A form of covert communication, the main purpose of steganography is concealing and deceiving. The message could be a message or script within a document file or a picture file.
It is just a process of embedding a secret piece of text within a text, picture, or audio. If one needs to define steganography, it can be simply said as a practice of hiding secret messages within or over something that is no secret. It has been a time-honored practice and only gained technical prominence in the last decade. The history of steganography dates back to 1500 when Johannes Trithemius used the term in his book Steganographia. It will be decoded only at the destination. Well in the world of cybersecurity, steganography is the technique of hiding secret data within a non-secret, ordinary file or message to avoid being detected.
Who would not forget writing secret messages in invisible ink or hiding coded messages within a piece of data or information? Can you imagine if you had the ability and power to conceal and hide information within plain sight? Well, is it even possible? Steganography is nothing but the process of hiding information, audio messages, video clips, or images into another piece of information, video clip, audio clip, or image.
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