Compromise Infrastructure: Виртуальный выделенный сервер
Other sub-techniques of Compromise Infrastructure (8)
Adversaries may compromise third-party Virtual Private Servers (VPSs) that can be used during targeting. There exist a variety of cloud service providers that will sell virtual machines/containers as a service. Adversaries may compromise VPSs purchased by third-party entities. By compromising a VPS to use as infrastructure, adversaries can make it difficult to physically tie back operations to themselves.(Citation: NSA NCSC Turla OilRig) Compromising a VPS for use in later stages of the adversary lifecycle, such as Command and Control, can allow adversaries to benefit from the ubiquity and trust associated with higher reputation cloud service providers as well as that added by the compromised third-party.
Примеры процедур |
|
| Название | Описание |
|---|---|
|
During Operation MidnightEclipse, threat actors abused Virtual Private Servers to store malicious files.(Citation: Volexity UPSTYLE 2024) |
|
| Volt Typhoon |
Volt Typhoon has compromised Virtual Private Servers (VPS) to proxy C2 traffic.(Citation: CISA AA24-038A PRC Critical Infrastructure February 2024) |
| Turla |
Turla has used the VPS infrastructure of compromised Iranian threat actors.(Citation: NSA NCSC Turla OilRig) |
Контрмеры |
|
| Контрмера | Описание |
|---|---|
| Pre-compromise |
Pre-compromise mitigations involve proactive measures and defenses implemented to prevent adversaries from successfully identifying and exploiting weaknesses during the Reconnaissance and Resource Development phases of an attack. These activities focus on reducing an organization's attack surface, identify adversarial preparation efforts, and increase the difficulty for attackers to conduct successful operations. This mitigation can be implemented through the following measures: Limit Information Exposure: - Regularly audit and sanitize publicly available data, including job posts, websites, and social media. - Use tools like OSINT monitoring platforms (e.g., SpiderFoot, Recon-ng) to identify leaked information. Protect Domain and DNS Infrastructure: - Enable DNSSEC and use WHOIS privacy protection. - Monitor for domain hijacking or lookalike domains using services like RiskIQ or DomainTools. External Monitoring: - Use tools like Shodan, Censys to monitor your external attack surface. - Deploy external vulnerability scanners to proactively address weaknesses. Threat Intelligence: - Leverage platforms like MISP, Recorded Future, or Anomali to track adversarial infrastructure, tools, and activity. Content and Email Protections: - Use email security solutions like Proofpoint, Microsoft Defender for Office 365, or Mimecast. - Enforce SPF/DKIM/DMARC policies to protect against email spoofing. Training and Awareness: - Educate employees on identifying phishing attempts, securing their social media, and avoiding information leaks. |
Обнаружение
Once adversaries have provisioned software on a compromised VPS (ex: for use as a command and control server), internet scans may reveal VPSs that adversaries have compromised. Consider looking for identifiable patterns such as services listening, certificates in use, SSL/TLS negotiation features, or other response artifacts associated with adversary C2 software.(Citation: ThreatConnect Infrastructure Dec 2020)(Citation: Mandiant SCANdalous Jul 2020)(Citation: Koczwara Beacon Hunting Sep 2021) Much of this activity will take place outside the visibility of the target organization, making detection of this behavior difficult. Detection efforts may be focused on related stages of the adversary lifecycle, such as during Command and Control.
Ссылки
- ThreatConnect. (2020, December 15). Infrastructure Research and Hunting: Boiling the Domain Ocean. Retrieved October 12, 2021.
- Stephens, A. (2020, July 13). SCANdalous! (External Detection Using Network Scan Data and Automation). Retrieved November 17, 2024.
- NSA/NCSC. (2019, October 21). Cybersecurity Advisory: Turla Group Exploits Iranian APT To Expand Coverage Of Victims. Retrieved October 16, 2020.
- Koczwara, M. (2021, September 7). Hunting Cobalt Strike C2 with Shodan. Retrieved October 12, 2021.
- Volexity Threat Research. (2024, April 12). Zero-Day Exploitation of Unauthenticated Remote Code Execution Vulnerability in GlobalProtect (CVE-2024-3400). Retrieved November 20, 2024.
- CISA et al.. (2024, February 7). PRC State-Sponsored Actors Compromise and Maintain Persistent Access to U.S. Critical Infrastructure. Retrieved May 15, 2024.
Связанные риски
Каталоги
Мы используем cookie-файлы, чтобы получить статистику, которая помогает нам улучшить сервис для вас с целью персонализации сервисов и предложений. Вы может прочитать подробнее о cookie-файлах или изменить настройки браузера. Продолжая пользоваться сайтом, вы даёте согласие на использование ваших cookie-файлов и соглашаетесь с Политикой обработки персональных данных.