Microsoft’s security team has issued an advisory today warning organizations around the globe to deploy protections against a new strain of ransomware that has been in the wild over the past two months.

“PonyFinal is a Java-based ransomware that is deployed in human-operated ransomware attacks,” Microsoft said in a series of tweets published today.

Human-operated ransomware is a subsection of the ransomware category. In human-operated ransomware attacks, hackers breach corporate networks and deploy the ransomware themselves.