A Chinese-speaking cybercrime group is using new malware and localized phishing messages to break into organizations in Europe and beyond. Proofpoint says TA4922, linked to activity overlaps with Silver Fox and Void Arachne, has targeted entities in Germany, Italy, the United Kingdom, South Africa, and parts of Southeast Asia since March 2026 using payroll, tax, VAT, invoice, and HR lures sent by email and messaging apps including WhatsApp, LINE, and Microsoft Teams. The campaigns deploy Atlas RAT, RomulusLoader, SilentRunLoader, and Winos4.0/ValleyRAT for remote access, file theft, credential theft, keylogging, screenshots, and webcam or audio capture.
Why it matters: Organizations in the targeted regions should treat this as an active intrusion and phishing threat, especially finance, HR, and compliance teams that may receive convincing local-language messages. Defenders should hunt for the named malware families and remote-management tools, tighten phishing controls, and warn staff to verify unexpected payroll, tax, invoice, or compliance messages across email and chat platforms.