Cyber risk and advisory programs that identify security gaps and build strategies to address them.
MDR that provides improved detection, 24/7 threat hunting, end-to-end coverage and most of all, complete Response.
Our team delivers the fastest response time in the industry. Threat suppression within just 4 hours of being engaged.
Be protected by the best from Day 1.
24/7 Threat Investigation and Response.
Expert hunting, research and content.
Defend brute force attacks, active intrusions and unauthorized scans.
Safeguard endpoints 24/7 by isolating and remediating threats to prevent lateral spread.
Investigation and enhanced threat detection across multi-cloud or hybrid environments.
Configuration escalations, policy and posture management.
Detects malicious insider behavior leveraging Machine Learning models.
Join Kurtis Armour, Director, Product Management for a briefing with Cloud…
Join eSentire for an evening of axe throwing at Bury the Hatchet in New…
Join eSentire in the November Banking and Finance Digital Best Practice…
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats within minutes.
We have discovered some of the most dangerous threats and nation state attacks in our space – including the Kaseya MSP breach and the more_eggs malware.
Our Security Operations Centers are supported with Threat Intelligence, Tactical Threat Response and Advanced Threat Analytics driven by our Threat Response Unit – the TRU team.
In TRU Positives, eSentire’s Threat Response Unit (TRU) provides a summary of a recent threat investigation. We outline how we responded to the confirmed threat and what recommendations we have going forward.
Here’s the latest from our TRU Team…
Figure 1 PowerShell script which re-assembles folder names into a working script.
Figure 2 Directory listing showing encoded folder names used by PNRP.ps1 to form a new PowerShell command.
Figure 3 CyberChef recipe demonstrating the decoding process.
The antivirus coverage for the initial PowerShell script residing on disk is minimal since the malicious content is loaded dynamically from directory filenames during runtime:
Figure 4 VirusTotal results for the first stage PowerShell script.
Figure 5 The final re-assembled PowerShell command. Executes code from a remote source and disables AV protections.
Our Machine Learning PowerShell classifier identified the persistence mechanism utilized by the threat actors after our endpoint agent was installed on the system.
Figure 6 The multi-stage PowerShell execution from the endpoint perspective. Note the final command is easily readable.
If you’re not currently engaged with a Managed Detection and Response provider, we highly recommend you partner with us for security services in order to disrupt threats before they impact your business.
Want to learn more? Connect with an eSentire Security Specialist.