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UPDATE: CVE-2022-26134 – Confluence Zero-Day Vulnerability
THE THREAT June 3rd Update: Atlassian has released security patches to address this vulnerability. On June 2nd, 2022, Atlassian disclosed a critical vulnerability impacting the Confluence…
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eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 1200+ organizations in 75+ countries from known and unknown cyber threats. Founded in 2001, the company’s mission is to hunt, investigate and stop cyber threats before they become business disrupting events.
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Waterloo, ON, May 17, 2022 — eSentire, the Authority in Managed Detection and Response (MDR), maintains one of the most secure and robust IT environments of any MDR provider in the industry. To that end, eSentire today announced that it has received the Payment Card Industry Data Security Standard (PCI DSS) certification, considered one of the most stringent and comprehensive payment card…
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Blog — Dec 13, 2021

Machine-Learning Powered BlueSteel and MDR for Endpoint Prevent Takeover by Coinmining Botnet

3 minutes read
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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…

What did we find?

  1. Disabling of Microsoft Defender and other common antivirus products.
  2. Terminating the processes of other bots if present on the system.
  3. Downloading a configuration file for XMR coinminer.
  4. Establishing persistence with Windows Management Instrumentation (WMI).
  5. Downloading and executing a self-extracting archive containing the coinminer and malware for a persistent foothold on the system.

Figure 1 PowerShell Executing Instructions Retrieved from a Remote Server

Figure 2 PowerShell Script Disabling Microsoft Defender

Figure 3 PowerShell Disabling Common AV Platforms

Figure 4 Contents of the Self-Extracting Archive file "m.dat" Executed by the PowerShell script

How did we find it?

What did we do?

Figure 5 Blocking the Coinminer Payload

What can you learn from this TRU positive?

Recommendations from our Threat Response Unit (TRU) Team:

Ask Yourself…

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.

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eSentire Threat Response Unit (TRU)
eSentire Threat Response Unit (TRU)

Our industry-renowned Threat Response Unit (TRU) is an elite team of threat hunters and researchers, that supports our 24/7 Security Operations Centers (SOCs), builds detection models across our Atlas XDR Cloud Platform, and works as an extension of your security team to continuously improve our Managed Detection and Response service. TRU has been recognized for its threat hunting, original research and content development capabilities. TRU is strategically organized into cross-functional groups to protect you against advanced and emerging threats, allowing your organization to gain leading threat intelligence and incredible cybersecurity acumen.