APT / THREAT GROUP
NESTEGG
2
aliases
Last seen:Mar 17, 2026
Intelligence Profile
NESTEGG is a memory-only backdoor that can proxy commands to other
infected systems using a custom routing scheme. It accepts commands to
upload and download files, list and delete files, list and terminate processes, and
start processes. NESTEGG also creates Windows Firewall rules that allows the
backdoor to bind to a specified port number to allow for inbound traffic.
Threat Analysis
NESTEGG 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.nesteggNESTEGG
External Intelligence
Malpedia: win.nesteggResearch Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.