One policy to rule them all

One policy to rule them all

Windows group policies are a powerful management tool that allows administrators to define and control user and computer settings within a domain environment in a centralized manner. While group policies offer functionality and utility, they are unfortunately a prime target for attackers. In particular, attackers are increasingly using group policies to distribute malware, execute hidden scripts and deploy ransomware.


These attacks can range from simple configuration changes that could result in data breaches to more complex scenarios where attackers gain complete control over the corporate network. To ensure the security of your IT infrastructure, it is crucial to understand the vulnerabilities in group policies and the tactics used by attackers. This story examines how cybercriminals exploit group policies as an attack vector, what risks attacks like these pose, and what measures can be taken to protect against potential threats.


Group Policy Object


A Group Policy Object (GPO) includes two key components: a Group Policy Container (GPC) and a Group Policy Template (GPT). A GPC is an Active Directory container that holds information about the GPO version, its status and so on.


Example of Group Policy Container contents


A GPT is a collection of files and folders kept on the SYSVOL system volume of every domain controller within a domain. These files hold a variety of settings, scripts and presets for users and workstations.


Group Policy Templates on SYSVOL


The path to each template is specified in the attribute of the group policy container named gPCFileSysPath.


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