SIFT Workstation

Why SIFT?

The SIFT Workstation is a collection of free and open-source incident response and forensic tools designed to perform detailed digital forensic examinations in a variety of settings. It can match any current incident response and forensic tool suite. SIFT demonstrates that advanced incident response capabilities and deep-dive digital forensic techniques can be accomplished using cutting-edge open-source tools that are freely available and frequently updated.

Who Created the SIFT?

Rob Lee created the original SIFT Workstation in 2007 to support forensic analysis in the SANS FOR508 class. Over the years, he and a small team have continually updated the SIFT Workstation for use in class, as well as for the wider community as a public resource. With over 125,000 downloads to date, the SIFT Workstation continues to be one of the most popular open-source incident-response and digital forensic offerings available.

Offered as an open source and free project, the SIFT Workstation is used in the following incident response courses at SANS:

"Even if SIFT were to cost tens of thousands of dollars, it would still be a very competitive product," says Alan Paller, director of research at SANS. "At no cost, there is no reason it should not be part of the portfolio in every organization that has skilled incident responders."

"The SIFT Workstation has quickly become my ‘go to’ tool when conducting an exam. The powerful open source forensic tools in the kit on top of the versatile and stable Linux operating system make for quick access to most everything I need to conduct a thorough analysis of a computer system," said Ken Pryor, GCFA, who has run countless cases supporting a variety of forensic and incident response priorities.

Key new SIFT Workstation features include:

Ubuntu LTS 20.04 Base
64-bit base system
Better memory utilization
Auto-DFIR package update and customizations
Latest forensic tools and techniques
VM Appliance ready to tackle forensics
Cross compatibility between Linux and Windows
Option to install/upgrade stand-alone system via SIFT-CLI installer
Expanded Filesystem Support

SIFT Workstation Capabilities

A key tool during incident response, helping incident responders identify and contain advanced threat groups. The SIFT provides robust capabilities for analyzing file systems, network evidence, memory images, and more.

File system support

NTFS (NTFS)
iso9660 (ISO9660 CD)
hfs (HFS+)
raw (Raw Data)
swap (Swap Space)
memory (RAM Data)
fat12 (FAT12)
fat16 (FAT16)
fat32 (FAT32)
ext2 (EXT2)
ext3 (EXT3)
ext4 (EXT4)
ufs1 (UFS1)
ufs2 (UFS2)

Evidence Image Support

raw (Single raw file (dd))
aff (Advanced Forensic Format)
afd (AFF Multiple File)
afm (AFF with external metadata)
afflib (All AFFLIB image formats (including beta ones))
ewf (Expert Witness format (encase))
split raw (Split raw files) via affuse
affuse - mount 001 image/split images to view single raw file and metadata
split ewf (Split E01 files) via mount_ewf.py
mount_ewf.py - mount E01 image/split images to view single raw file and metadata
ewfmount - mount E01 images/split images to view single raw file and metadata
vmdk
vhd/vhdx
qcow

Incident Response Support

F-Response Tool Suite Compatible
Rapid Scripting and Analysis
Threat Intelligence and Indicator of Compromise Support
Threat Hunting and Malware Analysis Capabilities

Software Includes:

Plaso/log2timeline (Timeline Generation Tool)
Rekall Framework (Memory Analysis)
Volatility Framework (Memory Analysis)
3rd Party Volatility Plugins
bulk_extractor
afflib
afflib-tools
ClamAV
dc3dd
imagemounter
libbde
libesedb
libevt
libevtx
libewf
libewf-tools
libewf-python
libfvde
libvshadow
lightgrep
Qemu
regripper and plugins
SleuthKit
Hundreds of additional tools

SIFT Workstation and REMnux Compatibility

REMnux® is a Linux toolkit for reverse-engineering and analyzing malicious software. REMnux provides a curated collection of free tools created by the community. Analysts can use it to investigate malware without having to find, install, and configure the tools. REMnux is used in SANS FOR610: Reverse Engineering Malware.

REMnux can be added into a SIFT Workstation installation. To install REMnux, first install the SIFT Workstation using the instructions found above. Then, follow these instructions to add the REMnux components.

SIFT Workstation How-Tos and Resources

Reporting Issues

Please report all issues, bugs, and feature requests to the GitHub project page, located here:

https://github.com/sans-dfir/sift/issues

SIFT Workstation Testimonials

SIFT workstation is playing an essential role for the Brazilian national prosecution office, especially due to Brazilian government budgetary constraints. Its incident response and forensic capabilities are bundled in a way that allows an investigation to be conducted much faster than it would take if not having the right programs grouped on such a great Linux distribution. The new version, which will be bootable, will be even more helpful. I'd highly recommend SIFT for government agencies or other companies as a first alternative, for acquisition and analysis, from the pricey forensics software available on the market.

- Marcelo Caiado, M.Sc., CISSP, GCFA, EnCE

What I like the best about SIFT is that my forensic analysis is not limited because of only being able to run an incident response or forensic tool on a specific host operating system. With the SIFT VM Appliance, I can create snapshots to avoid cross-contamination of evidence from case to case, and easily manage system and AV updates to the host OS on my forensic workstation. Not to mention, being able to mount forensic images and share them as read-only with my host OS, where I can run other forensic tools to parse data, stream-lining the forensic examination process.

- Brad Garnett www.digitalforensicsource.com