Let’s go step-by-step and do some basic live process forensics for Linux. Today’s attack is a bind shell backdoor waiting for a connection on Ubuntu. Simulated Bind Shell Attack If you want to simulate the …
READ MOREBasic Linux Malware Process Forensics for Incident Responders
Sandfly 2.2 has now been released. This update adds new capabilities around web shell detection, anti-forensics detection, plus much more. A small sample of some of the new Linux threats we detect with our agentless …
READ MORESandfly 2.2 – Enhanced Web Shell Detection, Anti-Forensics and More
Sandfly 2.1 has been released. We have expanded MIPS and ARM CPU coverage for embedded Linux devices, boosted our bindshell backdoor coverage and added in new sniffer and rogue sudo user detection as well as …
In this post we’re going to show you how to use utmpdump for investigating Linux audit logs for signs of compromise. Seemingly unknown by many, the utmpdump command is a great tool for Linux forensics …
READ MOREUsing Linux utmpdump for Forensics and Detecting Log File Tampering
Attackers on Linux often try to establish persistence so they can maintain access to a host. The most common way to do this is with a cron job that is scheduled to run and re-install …
READ MOREGetting an Attacker IP Address from a Malicious Linux At Job
Sandfly 2.0 is here. Sandfly 2.0 brings powerful new capabilities for agentless compromise detection and incident response for Linux. This includes our new feature to write your own agentless custom sandfly modules. Widest Linux Security …
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