APT / THREAT GROUP🕵️ ESPIONAGEADVANCED

TA829

🇷🇺Russia-attributed
1
campaigns
1
aliases
Last seen:Mar 17, 2026

Intelligence Profile

TA829 is a Russia-aligned threat actor that employs the RomCom RAT for intelligence-gathering and financially motivated cyberattacks, exploiting zero-day vulnerabilities in Mozilla Firefox and Microsoft Windows. The group utilizes REM Proxy services hosted on compromised MikroTik routers to relay traffic and disguise its origin. In their operations, victims targeted by TA829 receive a strain known as SlipScreen, while their infrastructure and tactics show significant similarities to those of UNK_GreenSec. TA829's hybrid approach combines espionage with financial fraud, making it a notable player in the cyber threat landscape.

Threat Analysis

TA829 is a advanced-sophistication threat actor attributed to Russia, 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, TA829 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.

Known Campaigns

TA829 — Active Operations March 2026

TA829 is a espionage threat actor attributed to Russia. TA829 is a Russia-aligned threat actor that employs the RomCom RAT for intelligence-gathering and financially motivated cyberattacks, exploiting zero-day vulnerabilities in Mozilla Firefox and Microsoft Windows. The group utilizes REM Proxy services hosted on compromised MikroTik...

ACTIVEHIGH2026

External References

Quick Facts

TypeAPT / Threat Group
Motivation🕵️ espionage
Sophisticationadvanced
Origin🇷🇺 Russia
Aliases1
SourceMalpedia

Also Known As

TA829

Research Links

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