APT / THREAT GROUP
BELLHOP
2
aliases
Last seen:Mar 17, 2026
Intelligence Profile
• BELLHOP is a JavaScript backdoor interpreted using the native Windows Scripting Host(WSH).
After performing some basic host information gathering, the BELLHOP dropper downloads a base64-encoded blob of JavaScript to disk and sets up persistence in three ways:
• Creating a Run key in the Registry
• Creating a RunOnce key in the Registry
• Creating a persistent named scheduled task
• BELLHOP communicates using HTTP and HTTPS with primarily benign sites such as Google Docs and PasteBin.
Threat Analysis
BELLHOP 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
BELLHOPjs.bellhop
External Intelligence
Malpedia: js.bellhopResearch Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.