APT / THREAT GROUP
SILENTUPLOADER
2
aliases
Last seen:Mar 17, 2026
Intelligence Profile
According to Mandiant, SILENTUPLOADER is an uploader written in MSIL that is dropped by DOSTEALER and is designed to work specifically in tandem with it. It checks for files in a specified folder every 30 seconds and uploads them to a remote server.
Threat Analysis
SILENTUPLOADER is a known-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of unknown activity patterns.
External References
Quick Facts
TypeAPT / Threat Group
Aliases2
Also Known As
win.silentuploaderSILENTUPLOADER
External Intelligence
Malpedia: win.silentuploaderResearch Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.