kali Web
https://www.kali.org/
Kali Linux — penetration-testing OS
How to use it
Download the ISO or VM image, boot it in VirtualBox/VMware or bare metal, and launch pre-installed tools from the menu. The /tools page documents every bundled tool.
Open resource →
kali Web
https://www.kali.org/tools/
Kali Linux — penetration-testing OS
How to use it
Download the ISO or VM image, boot it in VirtualBox/VMware or bare metal, and launch pre-installed tools from the menu. The /tools page documents every bundled tool.
parrotsec Web
https://www.parrotsec.org/
Parrot OS
How to use it
Security/privacy Linux distro — lighter alternative to Kali with similar toolset.
blackarch Web
https://blackarch.org/
BlackArch
How to use it
Arch-based distro with 2800+ security tools for advanced users.
tails Web
https://tails.net/
Tails amnesic OS
How to use it
Boot from USB for anonymous, leave-no-trace sessions routed through Tor.
qubes-os Web
https://www.qubes-os.org/
Qubes OS
How to use it
Security-by-isolation OS: compartmentalize work into separate VMs to contain compromise.
securityonionsolutions Web
https://securityonionsolutions.com/
Security Onion
How to use it
Free network-security-monitoring distro bundling Zeek, Suricata and Elastic — deploy a VM to monitor network traffic end-to-end.
remnux Web
https://remnux.org/
REMnux malware-analysis distro
How to use it
Ubuntu-based toolkit preloaded with malware-analysis tools; run as a VM lab.
flare-vm Web
https://flare-vm.org/
FLARE-VM (Windows analysis VM)
How to use it
PowerShell installer that turns a Windows VM into a full malware-analysis workstation.
flare-vm GitHub
https://github.com/mandiant/flare-vm/
Open-source code repository
How to use it
Open the repo page, read the README for install instructions (usually a git clone or pip install command), then run it in a terminal. Check the 'Issues' and 'Releases' tabs for updates.