BlackLock Ransomware

April 29, 2025

BlackLock Ransomware: Key Insight into the Unseen Hazard

BlackLock Ransomware first shot to prominence in early 2022 and since then, it has persistently posed significant threats to both individual computer users and corporations. As of today, this ransomware variant is considered a medium level risk. It grabbed major headlines when it targeted a range of institutions, from NFPs to large corporations (Reuters) and even government departments (TechCrunch) . Operating in the cyber backalleys, BlackLock is a potent reminder of the crucial need for robust ransomware defense, recovery, and negotiation strategies.

Information on BlackLock Ransomware

Category Details
Ransomware Name(s) BlackLock, Black.Locker
First Detected/Reported Early 2022
Targeted Operating Systems Windows
File Extensions Added .blacklock
Ransom Note Name(s) BLACKLOCK-README.txt
Known Communication Channels [email protected]
Leak Site URL Information not available
Distribution Methods Phishing emails, RDP attacks
Known Affiliations or Contacts Information not available
Detection Names by Antivirus Solutions Ransom:Win32/Blacklock.RA

Example of a Ransom Note

***************************************************
<>
Your data has been encrypted by BlackLock.
To recover all of your data, you should purchase a special decryption key.
Our Price: $500
Contact us: [email protected]
Please note that any modification of encrypted files or attempt to delete the ransomware may result in irreversible data loss.
Also, remember to include your personal ID in any communication. 
***************************************************

Additional Information

  • Currently, no public decryption tool is available for BlackLock Ransomware. Victims have to rely on ransomware recovery services.
  • The ransomware also deletes shadow copies of files to prevent victims from recovering the data themselves.
  • BlackLock ransomware has been known to target the Windows operating system specifically.