APT / THREAT GROUP
Sheriff
2
aliases
Last seen:Mar 17, 2026
Intelligence Profile
According to IBM X-Force, this is a modular backdoor that was used for targeting the defense sector of Ukraine. It uses the Dropbox API for C2 and data exfiltration.
Threat Analysis
Sheriff 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.sheriffSheriff
External Intelligence
Malpedia: win.sheriffResearch Links
Data sourced from Malpedia, Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Actor attribution is based on available intelligence and may be incomplete.