HOMETHREATSStorm-2077
APT / THREAT GROUP🕵️ ESPIONAGEADVANCED

Storm-2077

🇨🇳China-attributed
1
campaigns
3
aliases
Last seen:Mar 17, 2026

Intelligence Profile

TAG-100 is a cyber-espionage APT that targets government and private sector organizations globally, exploiting vulnerabilities in internet-facing devices such as Citrix NetScaler and F5 BIG-IP for initial access. The group employs open-source tools like Pantegana and SparkRAT for persistence and post-exploitation activities, including credential theft and email data exfiltration. TAG-100 has compromised entities in at least ten countries, including two Asia-Pacific intergovernmental organizations, and focuses on sectors like education, finance, and local government. Their operations highlight the challenges of attribution due to the use of off-the-shelf tools and techniques that overlap with other state-sponsored groups.

Threat Analysis

Storm-2077 is a advanced-sophistication threat actor attributed to China, 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, Storm-2077 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

Storm-2077 — Active Operations March 2026

Storm-2077 is a espionage threat actor attributed to China. TAG-100 is a cyber-espionage APT that targets government and private sector organizations globally, exploiting vulnerabilities in internet-facing devices such as Citrix NetScaler and F5 BIG-IP for initial access. The group employs open-source tools like Pantegana and SparkRAT for...

ACTIVEHIGH2026

External References

Quick Facts

TypeAPT / Threat Group
Motivation🕵️ espionage
Sophisticationadvanced
Origin🇨🇳 China
Aliases3
SourceMalpedia

Also Known As

TAG-100RedNovemberStorm-2077

Research Links

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