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Using Linux utmpdump for Forensics and Detecting Log File Tampering

July 31, 2019

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…

Getting an Attacker IP Address from a Malicious Linux At Job

July 25, 2019

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 malware if it…

Sandfly 2.0 Released – Write Your Own Sandflies

July 02, 2019

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…

Detecting and De-Cloaking HiddenWasp Linux Stealth Malware

June 03, 2019

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…

How To Recover A Deleted Binary From Active Linux Malware

June 02, 2019

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…

Using Linux Process Environment Variables for Live Forensics

May 05, 2019

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…