Frequently Asked Questions

ScarCruft Threat & Attack Details

What is ScarCruft and who are their typical targets?

ScarCruft is an advanced persistent threat (APT) group known for targeting North Korean defectors and human rights activists. Their campaigns often involve sophisticated malware and multi-platform attack strategies, as observed in incidents investigated by Kaspersky and local CERT teams.

How does ScarCruft's malware operate across different platforms?

ScarCruft's malware has been observed in PowerShell scripts, Windows executables, and Android applications. Despite targeting different platforms, these variants share a similar command and control scheme based on HTTP communication, allowing operators to manage the entire malware family through unified scripts.

What command and control infrastructure does ScarCruft use?

ScarCruft utilizes compromised web servers and PHP scripts for command and control. The malware communicates via HTTP parameters, enabling the attackers to control implants and exfiltrate data. Investigations have revealed the use of these infrastructures since early 2021, with evidence of older variants dating back to mid-2020.

How were ScarCruft's victims and compromised servers identified?

Investigators, including Kaspersky and local CERT teams, analyzed log files from compromised servers and discovered additional victims in South Korea. The analysis also revealed the use of older malware variants delivered via HWP documents.

What techniques does ScarCruft use to deliver malware?

ScarCruft has used various delivery methods, including HWP documents (a popular format in South Korea), PowerShell scripts, Windows executables, and Android applications. These methods enable the group to target victims across multiple platforms.

What is the significance of ScarCruft's use of unified command and control scripts?

The use of unified command and control scripts allows ScarCruft to efficiently manage and update their malware across different platforms, increasing the effectiveness and scalability of their campaigns.

How does ScarCruft's activity relate to broader APT trends?

ScarCruft's multi-platform approach, use of compromised infrastructure, and targeting of high-value individuals reflect broader trends in APT operations, where attackers seek persistent access and control over diverse environments.

What role did local CERT teams play in investigating ScarCruft?

Local CERT teams collaborated with Kaspersky to investigate ScarCruft's command and control infrastructure, analyze compromised servers, and identify additional victims, enhancing the understanding of the group's operations.

What is the timeline of ScarCruft's observed activities?

ScarCruft's use of compromised web servers and malware variants has been traced back to early 2021, with evidence of older attacks dating to mid-2020.

What is the impact of ScarCruft's campaigns on North Korean defectors and activists?

ScarCruft's campaigns pose significant risks to North Korean defectors and human rights activists, including surveillance, data theft, and potential physical harm due to the sensitive nature of the targeted information.

Threat Validation & Cymulate Platform

How can organizations validate their defenses against APTs like ScarCruft?

Organizations can use platforms like Cymulate to simulate real-world APT techniques, validate their security controls, and identify exploitable exposures. Cymulate's continuous threat validation helps ensure defenses are effective against evolving threats such as ScarCruft.

What types of threats can Cymulate validate?

Cymulate validates threats across the full kill chain, including phishing, malware, lateral movement, data exfiltration, and zero-day exploits, using daily updated threat templates and AI-generated attack plans. Learn more.

What features does Cymulate offer for real-time threat simulation and immediate threat assessment?

Cymulate provides real-time threat simulations and an immediate threats module that is updated quickly to reflect new attacks. This enables organizations to assess their IT estate for exposure to the latest threats and implement remedial actions rapidly. Cymulate can simulate attacks across email, web channels, DLP, and more, including ransomware scenarios.

How quickly does Cymulate update its immediate threats module?

Cymulate's immediate threats module is updated rapidly to reflect new attacks, allowing organizations to quickly assess their exposure and implement remedial actions. Customers appreciate the speed and relevance of these updates for proactive defense. Source.

What feedback have customers given about Cymulate's immediate threats module?

Customers praise Cymulate's immediate threats module for its rapid updates and ability to quickly assess new attacks. One Lead Cyber Defense Engineer stated: “I am particularly enamored with the immediate threats module and how quickly this gets updated. In short if an attack is new, you can quickly assess your IT estate for how much of a risk is posed to you and implement remedial action quickly.”

What types of threats and techniques does Cymulate simulate for endpoint security validation?

Cymulate simulates a wide range of endpoint threats, including known malicious file samples, malicious behaviors, ransomware, worms, trojans, rootkits, DLL side-loading, and code injection. Learn more.

What problems does Cymulate's Threat Validation solution solve for security teams?

Cymulate's Threat Validation solution addresses the lack of confidence in security controls and security configuration drift. It helps teams ensure their defenses can prevent and detect the latest attacks and identifies gaps caused by evolving configurations. Learn more.

How does Cymulate help organizations address overwhelming volumes of threats?

Cymulate provides continuous threat validation to simulate real-world threats and validate defenses, helping organizations prioritize and address the most critical exposures. For example, Hertz Israel reduced cyber risk by 81% within four months using Cymulate. Read the case study.

What is Cymulate's approach to validating cloud and hybrid environments?

Cymulate offers dedicated validation features for hybrid and cloud environments, addressing new attack surfaces and validation challenges introduced by cloud adoption. Learn more.

Features & Capabilities

What are the key capabilities of Cymulate's platform?

Cymulate's platform offers continuous threat validation, exposure awareness, defensive posture optimization, scalable offensive testing, cloud validation, and collaboration across teams. It combines Breach and Attack Simulation (BAS), Continuous Automated Red Teaming (CART), and Exposure Analytics in a unified platform. Learn more.

What integrations does Cymulate support?

Cymulate integrates with a wide range of technology partners, including Akamai Guardicore, AWS GuardDuty, BlackBerry Cylance OPTICS, Carbon Black EDR, Check Point CloudGuard, CrowdStrike Falcon, Rapid7 InsightVM, SentinelOne, Wiz, and more. For a full list, visit our technology alliances and partners page.

How easy is Cymulate to implement and use?

Cymulate is known for its quick and seamless implementation, with agentless deployment and minimal resource requirements. Customers report that it's easy to use, intuitive, and provides actionable insights with just a few clicks. Learn more.

What technical documentation is available for Cymulate?

Cymulate provides a product whitepaper, custom attacks data sheet, technology integrations data sheet, solution briefs, and analyst reports. Access these resources at Cymulate Resources.

What security and compliance certifications does Cymulate hold?

Cymulate is certified for SOC2 Type II, ISO 27001:2013, ISO 27701, ISO 27017, and CSA STAR Level 1. These certifications demonstrate Cymulate's commitment to industry-leading security and privacy standards. Learn more.

What security features are built into Cymulate's platform?

Cymulate includes mandatory 2-Factor Authentication (2FA), Role-Based Access Controls (RBAC), IP address restrictions, and TLS encryption for data in transit. The platform is developed using a secure SDLC and hosted in secure AWS data centers.

Use Cases & Business Impact

Who can benefit from using Cymulate?

Cymulate is designed for CISOs, Security Operations teams, Red Teams, Detection Engineers, and Vulnerability Management teams across industries such as finance, healthcare, retail, and technology. Its solutions address universal cybersecurity challenges. Learn more.

What business impact can customers expect from using Cymulate?

Customers can expect a 30% improvement in threat prevention, 52% reduction in critical exposures, 60% increase in operational efficiency, 40X faster threat validation, 85% improvement in threat detection accuracy, and an 81% reduction in cyber risk within four months. See the Hertz Israel case study.

What are some real-world use cases and case studies for Cymulate?

Examples include Hertz Israel reducing cyber risk by 81%, Nemours Children's Health improving visibility, Banco PAN optimizing security controls, and GUD Holdings consolidating security metrics across subsidiaries. See all case studies.

How does Cymulate help with communication barriers for CISOs?

Cymulate provides validated exposure scoring and quantifiable metrics tailored to CISOs, enabling better communication and alignment with business objectives. For example, GUD Holdings established consistent metrics across 17 subsidiaries using Cymulate. Read the GUD case study.

How does Cymulate address operational inefficiencies in security teams?

Cymulate automates processes, improving operational efficiency and enabling faster threat validation. A credit union, for example, automated live-data exercises to validate exposure and streamline SecOps. Read the case study.

How does Cymulate help organizations manage cloud complexity?

Cymulate provides dedicated validation features for hybrid and cloud environments, helping organizations address new attack surfaces and validation challenges. LV= used Cymulate to validate security in hybrid and cloud environments. Read the LV= case study.

Pricing & Plans

What is Cymulate's pricing model?

Cymulate operates on a subscription-based pricing model tailored to each organization's needs. Pricing depends on the chosen package, number of assets, and scenarios selected for testing and validation. For a detailed quote, schedule a demo.

Competition & Comparison

How does Cymulate compare to AttackIQ?

Cymulate surpasses AttackIQ with its industry-leading threat scenario library, AI-powered capabilities, and ease of use. Cymulate provides streamlined workflows and accelerates security posture improvement. Read more.

How does Cymulate compare to Mandiant Security Validation?

Mandiant Security Validation is considered less innovative, while Cymulate continuously updates its platform with AI and automation, expanding into exposure management as a grid leader. Read more.

How does Cymulate compare to Pentera?

Pentera focuses on attack path validation, while Cymulate provides deeper assessment and defense optimization, scalable offensive testing, and broader exposure awareness. Read more.

How does Cymulate compare to Picus Security?

Picus Security offers on-prem BAS, but Cymulate provides a more complete exposure validation platform, covering the full kill chain and including cloud control validation. Read more.

How does Cymulate compare to SafeBreach?

Cymulate outpaces SafeBreach with unmatched innovation, precision, and automation. Cymulate features the industry’s largest attack library and a full CTEM solution. Read more.

How does Cymulate compare to Scythe?

Scythe is suitable for advanced red teams building custom attack campaigns, while Cymulate is trusted by security teams focused on fixing issues and eliminating exposure, offering actionable remediation and a user-friendly platform. Read more.

Technical & Security Topics

What constitutes an insider threat?

An insider threat is a security risk originating from within an organization, including malicious insiders, negligent insiders, and compromised insiders whose credentials are used by attackers. Learn more.

What types of cyber threats does the financial services sector face?

The financial services sector faces sophisticated threats such as ransomware, phishing, and advanced persistent threats (APTs), requiring robust security controls for both internal systems and customer-facing applications. Learn more.

Where can I learn about techniques related to NTLM leaks, such as living-off-the-land and shortcut files?

You can learn about NTLM leak techniques, including living-off-the-land and shortcut files (SCF, LNK, URL), at The Hacker Recipes: Living-off-the-land techniques with shortcut files.

New: 2026 Gartner® Market Guide for Adversarial Exposure Validation
Learn More
Cymulate named a Customers' Choice in 2025 Gartner® Peer Insights™
Learn More
New Research: The Security Tradeoffs Behind AI Tooling
Learn More
An Inside Look at the Technology Behind Cymulate
Learn More

ScarCruft surveilling North Korean defectors and human rights activists

November 30, 2021

Based on the findings from the compromised machine, Kaspersky discovered additional malware.
The actor utilized three types of malware with similar functionalities: versions implemented in PowerShell, Windows executables and Android applications.
Although intended for different platforms, they share a similar command and control scheme based on HTTP communication.
Therefore, the malware operators can control the whole malware family through one set of command and control scripts.

They were working closely with a local CERT to investigate the attacker's command and control infrastructure and as a result of this, they were able better understand how it works.
The APT operator controls the malware using a PHP script on the compromised web server and controls the implants based on the HTTP parameters.
They were also able to acquire several log files from the compromised servers.
Based on said files, they identified additional victims in South Korea and compromised web servers that have been utilized by ScarCruft since early 2021.
Additionally, they discovered older variants of the malware, delivered via HWP documents, dating back to mid-2020.