MBR-ONI

Malware type

ransomware, wiper

Profile updated

2026-07-07 16:05:09

Targeted industries: government-and-public-sector

Targeted regions: country_code:jp

Context

MBR-ONI is a ransomware variant that has been used in cyber-attacks targeting local governments in Japan. It is known for its destructive payload that includes wiping system Master Boot Records, adding to its impact as both a ransomware and wiper.