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Emotet malware runs on a dual infrastructure to avoid downtime and takedowns

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The Emotet malware gang is probably managing their server infrastructure better than most companies are running their internal or external IT systems.

A report published last week by Trend Micro reveals that the Emotet crew has intentionally designed its server backbone infrastructure into two separate clusters.

Researchers ended up at this conclusion after they analyzed 571 Emotet malware samples from where they extracted the IP addresses of 721 Emotet command-and-control (C&C) servers, but also six RSA encryption keys that the malware had used to encrypt the communications between infected computers and its C&C servers.

When researchers visualized the relationship between each RSA key and its set of C&C servers, the results were pretty surprising, as the Emotet infrastructure was depicted as two separate clusters that didn’t communicate with each other. This was out of the ordinary, as most malware infrastructures tend to be one giant blob of interconnected servers.


Image: Trend Micro

“Our initial assumption was that the two Emotet [clusters] were created for different purposes or are being utilized by different operators,” said Trend Micro researchers. “However, we did not find any major difference between the IoCs under these two groups.”

For instance, researchers said they’ve seen one cluster push a version of Emotet or other second-stage malware one day, and then see the other cluster push the exact same samples the next day. This showed that the same group of malware developers was running both clusters.

Researchers said they believe the Emotet gang divided their C&C server infrastructure in two for several potential reasons/benefits. One reason could be that this dual infrastructure makes tracking Emotet infections by security firms a much tougher job –albeit, not impossible.

Second, in case of a technical glitch or failure, the other cluster will remain online and keep the Emotet gang’s operation functional.

Third, the dual infrastructure makes any coordinated law enforcement takedown a little bit harder, as authorities and cyber-security firms would need to coordinate takedowns against both clusters.

This someone unorthodox infrastructure setup is rare among malware operations, but it’s not surprising that Emotet is the one that’s using it. The Emotet gang has constantly released new and intriguing modules, has rolled out competent antivirus evasion tricks, and has featured good coding, something rare on the malware scene, but something that suggests that experienced malware coders are involved.

In addition to discovering Emotet’s dual infrastructure, researchers also discovered that “the author of the Emotet malware may live somewhere in the UTC+10 time zone, or further east.”

The Emotet malware operation, formerly a banking trojan but not repurposed into a malware downloader, has been one of 2018’s most active malware threats.

Last month, Emotet gained a new module that stole the text of an infected victim’s Outlook emails, something not seen in other malware droppers or banking trojans.

Last week, Emotet spam operations started imitating the email templates of major US financial institutions. The malware’s spam operations also started adopting DKIM to bypass mail server spam filters.

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Adventist Risk Management Data Protection Infrastructure

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Companies always want to enhance their ability to quickly address pressing business needs. Toward that end, they look for new ways to make their IT infrastructures more efficient—and more cost effective. Today, those pressing needs often center around data protection and regulatory compliance, which was certainly the case for Adventist Risk Management. What they wanted was an end-to-end, best-in-class solution to meet their needs. After trying several others, they found the perfect combination with HYCU and Nutanix, which provided:

  • Ease of deployment
  • Outstanding ROI
  • Overall TCO improvement

Nutanix Cloud Platform provides a software-defined hyperconverged infrastructure, while HYCU offers purpose-built backup and recovery for Nutanix. Compared to the previous traditional infrastructure and data protection solutions in use at Adventist Risk Management, Nutanix and HYCU simplified processes, speeding day-to-day operations up to 75%. Now, migration and update activities typically scheduled for weekends can be performed during working hours and help to increase IT staff and management quality of life. HYCU further increased savings by providing faster and more frequent points of recovery as well as better DR Recovery Point Objective (RPO) and Recovery Time Objective (RTO) by increasing the ability to do daily backups from one to four per day.

Furthermore, the recent adoption of Nutanix Objects, which provides secure and performant S3 storage capabilities, enhanced the infrastructure by:

    • Improving overall performance for backups
    • Adding security against potential ransomware attacks
    • Replacing components difficult to manage and support

In the end, Nutanix and HYCU enabled their customer to save money, improve the existing environment, and, above all, meet regulatory compliance requirements without any struggle.

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Secure Insight: GigaOm Partners with the CISO Series

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Don’t look now, but GigaOm, the analyst firm that enables smart businesses to future-proof their decisions, is forging new partnerships to extend its reach and better inform busy IT decision makers. On Thursday, the company announced it was teaming with the CISO Series to share content and better support the community of chief information security officers, security practitioners, and security vendors.

“The CISO Series is one we have admired for a while because they have a very similar aim: They help security professionals become more knowledgeable and understand how their roles are changing,” said Ben Book, GigaOm founder and CEO. “We saw a clear common interest and are delighted to be working together.”

The CISO Series brand has built a formidable reputation through its podcasts, blogs, video chats, and live events for the security community. It has added the extremely popular CyberSecurity Headlines podcast to its stable this year, which joins the CISO/Security Vendor Relationship and Defense in Depth podcasts. Every Friday at 10am Pacific Time, the CISO Series hosts its highly engaging and fun weekly live CISO Series Video Chat, which viewers can register for here.

The channel partnership connects two of the strongest, fastest-growing brands in enterprise IT content production. The agreement enables the CISO Series to share exclusive GigaOm reports with its audience ahead of publication, while GigaOm is able to share insights from the CISO Series’ various publications through its social channels and newsletters. The CISO Series joins other media firms, such as The Register and SDXCentral, as official GigaOm Channel Partners.

“We are delighted to be working with GigaOm because we’re not only both addressing the same audience, but we’re also both trying to bring education and understanding to both the security vendor and practitioner communities,” said David Spark, managing editor and executive producer at the CISO Series. “GigaOm is providing some excellent reports that we’re leaning on for our discussions and reporting across all of our shows.”

Spark continued: “We are always tweaking our programming to bring the best and most up-to-date resources and we’re really impressed with both the volume and quality GigaOm is delivering. Not only are we impressed with their editorial work, but we also appreciate their business branding. It’s something we felt comfortable about aligning with the CISO Series brand as well.”

Check out the CISO Series schedule at http://crowdcast.io/cisoseries, or visit cisoseries.com for more information about the CISO Series and its weekly Video Chats.

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Key Criteria for Evaluating Vulnerability Management Tools

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Vulnerability management tools scan your IT estate to help identify and mitigate security risks and weaknesses. These tools can facilitate the development of a more comprehensive vulnerability management program. Leveraging people, processes, and technologies, successful initiatives effectively identify, classify, prioritize, and remediate security threats.

A security vulnerability is a weakness that can compromise the confidentiality, integrity, and availability (CIA) of information. Attackers are constantly looking to exploit defects in software code or insecure configurations. Vulnerabilities can exist anywhere in the software stack, from web applications and databases to infrastructure components such as load balancers, firewalls, machine and container images, operating systems, and libraries. This includes code used in the CI/CD pipeline as well as the infrastructure-as-code (IAC) that defines the compute, network, and storage infrastructure.

Recent cybersecurity events have exposed widespread vulnerabilities involving the exploitation of zero-day malware and unknown weaknesses. Threat actors continually discover new exploitation tactics, techniques, and procedures (TTPs) to take advantage of weaknesses throughout integrated systems. Moreover, identifying breach paths is increasingly complicated due to the widespread adoption of ephemeral services.

Vulnerability management solutions should provide end-to-end visibility of the protect-surface by aggregating both platform and application risks in a single pane of glass, while leveraging prioritized remediation based on business risk and threat context for efficiency. Containerized workloads deployed via DevOps pipelines have unique security requirements that demand a fully integrated vulnerability assessment to be automated into cloud platform services running containerized workloads.

The path to a mature security posture starts with the ability to identify vulnerabilities in software code, third-party libraries, and at runtime. In addition, the cloud platform used to host your applications should be scanned for misconfigurations. This requires the use of policy configuration baselines, benchmarks, and compliance standards that apply to both the infrastructure and the code used to build it. As organizations implement security guardrails early in the software development lifecycle (SDLC), they can take advantage of cloud-native culture to ensure network and security tools are used throughout all phases of the SDLC.

This GigaOm report explores the key criteria and emerging technologies that IT decision makers should evaluate when choosing a vulnerability management solution. The key criteria report, together with the GigaOm radar report that evaluates relevant products, provides a framework to help organizations assess the solutions currently available on the market and how these tools fit with their requirements.

How to Read this Report

This GigaOm report is one of a series of documents that helps IT organizations assess competing solutions in the context of well-defined features and criteria. For a fuller understanding consider reviewing the following reports:
Key Criteria report: A detailed market sector analysis that assesses the impact that key product features and criteria have on top-line solution characteristics—such as scalability, performance, and TCO—that drive purchase decisions.

GigaOm Radar report: A forward-looking analysis that plots the relative value and progression of vendor solutions along multiple axes based on strategy and execution. The Radar report includes a breakdown of each vendor’s offering in the sector.

Vendor Profile: An in-depth vendor analysis that builds on the framework developed in the Key Criteria and Radar reports to assess a company’s engagement within a technology sector. This analysis includes forward-looking guidance around both strategy and product.

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