Malware
Linux nologin Shell Rename Backdoor Attack Detection and Forensics
Ever wondered what would happen if you replaced the Linux /sbin/nologin with a valid shell? Attackers have and it gives them a persistent backdoor on supposedly disabled accounts. In this video we go…
Linux Default User Password Attack Detection and Forensics
Linux ships with default users disabled. But, attackers can activate these accounts to allow backdoor access that can hide for a long time. In this video we discuss this threat, how to find it with…
Linux Duplicate User Password Hash Attack
Duplicate password hashes on Linux are a tactic for attackers to drop backdoor accounts in an automated way. In this video we explain what a duplicate password hash attack is, and how you can find it…
Detecting Melofee Stealth Backdoor Targeting Red Hat Linux
A new report from Qianxin's X Lab was released detailing new stealth malware targeting Red Hat 7.9 and similar systems: New Zero-Detection Variant of Melofee Backdoor from Winnti Strikes RHEL…
Rob Joyce Interview - Linux Critical Infrastructure Threats
Watch as Rob Joyce, former head of the NSA Cybersecurity Directorate, discusses threats against Linux critical infrastructure with Sandfly founder Craig Rowland. This video will help security teams…
De-Cloaking Linux Stealth Malware and Rootkits: sedexp, Diamorphine, and Reptile
In this video we demonstrate Sandfly's new file and directory stealth rootkit de-cloaking feature on the sedexp malware targeting Linux. We also show how it works for the Diamorpine and Reptile…