High-value ransom theft: Aiming for large-scale information theft from file servers and the shutdown of core systems, seizing administrator privileges of Active Directory that can take over the network.
Active Directory is a convenient system for users and administrators as an authentication infrastructure for authentication and authorization. At the same time, it is also a system that is advantageous for ransomware attackers. By taking over Active Directory, attackers can change user account passwords or create new accounts, allowing them to access the entire system. Once compromised, they can use the organization's management information and user account modification privileges to carry out cross-cutting attacks such as service disruption or interference. As a result, the entire organization can suffer serious impacts on its operations. This document explains the attackers' objectives, the flow of attacks, and at which stages it is possible to prevent damage.
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The Active Directory monitoring service developed based on experience in responding to security incidents can quickly detect signs of ransomware that cannot be detected by SIEM or EDR, preventing damage before it occurs. Our Active Directory monitoring is more cost-effective and accurately captures signs compared to general SIEM monitoring that uses vast amounts of Active Directory event logs. Additionally, for incidents deemed as threats requiring action, we will implement escalation including countermeasures. If you are considering a review of your security measures or wish to establish security measures in the future, please feel free to contact us. *For more details, please download the PDF or feel free to contact us.*
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We provide optimal and effective security operation services tailored to our clients' environments and budgets, drawing on our extensive experience as security advisors and in building and operating security measures, as well as incident response in government agencies and large private enterprises. To meet the high demands of our clients, we are actively engaged in the development of our own products and services utilizing AI.