Fantom
Aliases: Comrad Circle
- First seen
- 2016-12-01 00:00:00
- Malware type
- ransomware
- Family
- Malware family
- Last IoC activity
- 2026-07-22 01:55:25
- Profile updated
- 2026-07-07 13:35:45
Targeted industries: government-and-public-sector education-and-nonprofits healthcare-and-pharmaceutical
Context
Fantom is a ransomware based on EDA2 that pretends to be a legitimate Windows update. It encrypts files on the victim's machine and demands a ransom for decryption, primarily targeting various public sector entities.
Reports & references
- bleepingcomputer.com — Fantom Ransomware Encrypts Your Files While Pretending To Be Windows Update (report)