A new Linux stealth malware was discovered by researchers last week. The malware, named HiddenWasp, is a remote access tool that has two modes of infection depending on whether it has root level or user …
READ MOREDetecting and De-Cloaking HiddenWasp Linux Stealth Malware
Often, Linux malware will delete itself after it starts so that file scanners and integrity checks won’t see the binary present. It also can make forensic analysis harder if you can’t get to the binary …
READ MOREHow To Recover A Deleted Binary From Active Linux Malware
In this post and video we’re going to explore the Linux /proc directory further by digging into a live process and the environment variables it presents. The basic format for the command we’ll use is …
READ MOREUsing Linux Process Environment Variables for Live Forensics
In this video Sandfly founder Craig Rowland goes over the basics behind using command line tools on Linux to look into a suspicious process. You’ll learn how to start a benign process and have it …
READ MOREUsing Command Line Tools to Find Process Masquerading Linux Malware
When the NSA and CIA source code leaked a couple years back, Sandfly founder Craig Rowland ignored the zero day attacks they had and studied their tactics in the code instead. In this video he’ll …
READ MOREHunting for Linux Intrusion Tactics is Better than Searching for Exploit Signatures
Intrusion detection thought for the day: Someone trying to hide is a signature. In this video, Sandfly founder Craig Rowland discusses why hunting for hiding tactics vs. specific exploit signatures is an effective way to …
READ MORENinjas on Rooftops – A Better Approach to Linux Threat Hunting
This is the first in an ongoing series of short videos on topics around intrusion detection, Linux security, digital forensics, malware and anything else Sandfly Founder Craig Rowland finds interesting. Be sure to subscribe to …
Below is our command line compromise detection for Linux cheat sheet and presentation given at Purplecon 2018: Linux Compromise Detection Command Cheat Sheet Linux Compromise Detection Presentation Linux Compromise Detection Video The presentation and cheat …
READ MORELinux Command Line Forensics and Intrusion Detection Cheat Sheet
This year we have seen a huge uptick in cryptomining malware against Linux servers. The usual attack vector is the following: A brute force attack against SSH accounts. Automated install of a pre-compiled binary once …