Silver Fox
Silver Fox is a China-attributed cybercrime syndicate with a financial motive, tracked by Brandefense. It targets organisations in 3 countries, including China and Japan. It uses 32 MITRE ATT&CK techniques.
Also known as
- SwimSnake
- The Great Thief of Valley
- UTG-Q-1000
- Void Arachne
- Valley Thief
- Origin
- China
- Techniques
- 32
- Exploited CVEs
- No CVE data
- First seen
- Jan 1, 2024
- Last seen
- Dec 12, 2025
- Record updated
Who They Target.
About Silver Fox.
A sophisticated threat actor observed orchestrating cyber campaigns, employing false flag approaches to misdirect attribution. Their operational objectives are multifaceted, encompassing financial gain through illicit activities and the collection of sensitive intelligence for geopolitical advantage, operating without direct government sponsorship.
Last updated Oct 6, 2026. Compiled by Brandefense technologies from structured threat intelligence and reviewed by Brandefense analysts. Techniques follow the MITRE ATT&CK framework.