The Equation Group, an advanced persistent threat identified by Kaspersky's Research Lab in 2015, was detected during the investigation of the Regin malware. Attributed to the United States National Security Agency, the Equation Group's techniques are more advanced than previously discovered threats. Despite being identified in 2015, detailed studies of their tactics, techniques, and procedures have been limited. This research examines the artifacts left by the group, revealing their advanced methodologies and analyzing the defensive mechanisms embedded within these artifacts designed to avoid detection by security systems. Additionally, solutions are proposed at various levels of the digital systems stack to counter the group's sophisticated attack strategies effectively.

翻译：方程式组织是卡巴斯基实验室于2015年在调查Regin恶意软件时发现的高级持续性威胁组织，被认定隶属于美国国家安全局。该组织所采用的技术比先前发现的威胁更为先进。尽管早在2015年已被识别，但针对其战术、技术与程序的详细研究仍然有限。本研究通过分析该组织遗留的攻击痕迹，揭示了其先进的方法论，并深入剖析了这些痕迹中为规避安全系统检测而设计的防御机制。此外，本文还提出了针对数字系统栈不同层级的解决方案，以有效应对该组织的复杂攻击策略。