Storm-2077
Also known as TAG-100, RedNovember
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.
CVEs in recent coverage
No CVEs named alongside this actor in the last 90 days.
Recent victims
No leak-site posts on record for this group.
Recent activity
No posts or advisories have named this actor recently.
References
- https://www.microsoft.com/en-us/security/blog/2024/11/22/microsoft-shares-latest-intelligence-on-north-korean-and-chinese-threat-actors-at-cyberwarcon/
- https://www.recordedfuture.com/research/tag-100-uses-open-source-tools-in-suspected-global-espionage-campaign
- https://thehackernews.com/2025/09/chinese-hackers-rednovember-target.html
From the MISP threat-actor galaxy, MITRE ATT&CK and RansomLook (CC BY 4.0). Activity is any post or advisory Watch Floor collected that names the actor or one of its aliases.