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Windows Anti-Forensics

Written by DFM Team


Windows Anti-Forensics

The art of data hiding (also known as steganography) is basically storing data in a place where it is not supposed to go. There are numerous techniques to conceal data in different digital file types like Text documents, images, audio and video files. The underlying file system that is used to host operating system files also can be exploited to conceal secret data and other executable files.

Current operating system file structures give us vast possibilities to conceal our data and make it harder to detect. Unfortunately, anyone with malicious intent can also use these techniques to attack our systems.

In this article, we investigate advanced data concealment technique inside Windows NTFS file system. We begin by looking at how the ADS feature of NTFS file system can be exploited to conceal secret data stealthy inside it. This is followed by an investigation into how we might exploit the ADS stream feature to conceal malware and launch deadly attacks against target Windows® machines.

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Meet the Authors

Scott C. Zimmerman

Scott C. Zimmerman is a CISSP qualified Information Security consultant and presenter

 

Coming up in the Next issue of Digital Forensics Magazine

Coming up in Issue 34 on sale from February 2018:


Device Forensics in the Internet of Things

As more businesses and consumers adopt IoT devices, privacy violations and cyber-attacks by malicious actors will become commonplace due to the insecure IoT infrastructure. Read More »

Data Destruction In Current Hard Disks & Data Destruction Techniques

Data destruction is a process traditionally applied using physical techniques, aiming at the completely destruction of the hard disk, however, there is an increasing interest in the use of logical techniques for data destruction, that allow reusing the physical device. Read More »

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Faster Searching For Known Illegal Content

Cryptographic (“MD5”) hash searching for known illegal material is one of the most thorough methods of digital forensic investigation. However, the technique is hampered by the ever-increasing size of media being examined, and the size of the hash list being searched. Read More »

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