Andariel
aka Onyx Sleet, PLUTONIUM, Silent Chollima, APT45, Stonefly
A group in the 3rd Bureau of North Korea's Reconnaissance General Bureau that steals defense, aerospace and nuclear technology. It funds itself with ransomware attacks on hospitals.
- Alert level
- 4/ 5
- Reports & advisories (90 days)
- 0
- Known exploited CVEs
- 16
- Personal data leaked (disclosed)
- None confirmed
Attribution
- Assessed as part of North Korea's RGB 3rd Bureau — US FBI, CISA, NSA, South Korea's NIS and police, UK NCSC
Exploited vulnerabilities and targeted products
CVE-2023-46604 CVE-2023-42793 CVE-2023-3519 CVE-2023-35078 CVE-2023-34362 CVE-2023-32315 CVE-2023-27997 CVE-2023-2868 CVE-2023-0669 CVE-2022-47966 CVE-2022-41352 CVE-2022-22965 CVE-2021-44228 CVE-2021-41773 CVE-2021-20038 CVE-2019-0708
If you run any of these products, first make sure they are updated to a fixed version.
How they attack
Entry
Exploiting internet-facing devices
Like finding a broken lock on the company's front gate (VPN or firewall) and walking in.
Goal
Quietly stealing information
Like a spy who stays for months, copying files from the cabinet a little at a time.
Goal
Ransomware to fund operations
Like a spy who, on the side, locks a hospital's records room and charges a fee to unlock it.
Sources
Attributions are quoted as assessed by governments and security vendors. VulnPulse does not make attributions itself.
Leak counts only add up figures disclosed by the affected companies or authorities, never the attackers' own claims. We do not list victim names or link to leak sites.
The alert level is calculated automatically from reports and advisories in the last 90 days, known exploited vulnerabilities, and whether the group has targeted Japan.
Updated 2026-10-23 · daily