Mobef
Aliases: Yakes, CryptoBit
- First seen
- 2015-08-01 00:00:00
- Malware type
- ransomware
- Family
- Malware family
- Last IoC activity
- 2026-06-30 22:45:03
- Profile updated
- 2026-07-07 13:38:13
Targeted industries: financial-services healthcare-and-pharmaceutical government-and-public-sector
Context
Mobef is a ransomware family, also known as Yakes and CryptoBit, that encrypts files on the victim's system and demands a cryptocurrency ransom for decryption. It primarily targets financial services and healthcare sectors.
Related threat objects
- CryptoBit (malware)
- Mobef-JustFun (malware)
Reports & references
- nyxbone.com — Mobef (report)
- researchcenter.paloaltonetworks.com — Unit42 Cryptobit Another Ransomware Family Gets An Update (report)
- nyxbone.com — 0.Png (report)
- id-ransomware.blogspot.com — Mobef Yakes Ransomware 4 Bitcoins 2000 (report)
