APT / THREAT GROUP🕵️ ESPIONAGEADVANCED

Regin

2
aliases
Last seen:Mar 17, 2026

Intelligence Profile

Regin is a sophisticated malware and hacking toolkit attributed to United States' National Security Agency (NSA) for government spying operations. It was first publicly revealed by Kaspersky Lab, Symantec, and The Intercept in November 2014. Regin malware targeted victims in a range of industries, telecom, government, and financial institutions. It was engineered to be modular and over time dozens of modules have been found and attributed to this family. Symantec observed around 100 infections in 10 different countries across a variety of organisations including private companies, government entities, and research institutes.

Threat Analysis

Regin is a advanced-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of espionage.

The group's espionage-oriented operations suggest a state-sponsored or state-aligned mandate, typically focused on stealing intellectual property, government secrets, or military intelligence. Targets are usually selected for strategic value rather than financial gain.

Classified as an advanced threat actor, Regin likely develops or acquires zero-day exploits, employs custom malware toolchains, and demonstrates long-term persistence capabilities — hallmarks of a well-resourced operation consistent with nation-state backing.

External References

Quick Facts

TypeAPT / Threat Group
Motivation🕵️ espionage
Sophisticationadvanced
Aliases2

Also Known As

win.reginRegin

External Intelligence

Malpedia: win.regin

Research Links

Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.