Adversaries may stop or disable services on a system to render those services unavailable to legitimate users. Stopping critical services or processes can inhibit or stop response to an incident or aid in the adversary's overall objectives to cause damage to the environment.
Adversaries may accomplish this by disabling individual services of high importance to an organization, such as
MSExchangeIS, which will make Exchange content inaccessible . In some cases, adversaries may stop or disable many or all services to render systems unusable. Services or processes may not allow for modification of their data stores while running. Adversaries may stop services or processes in order to conduct Data Destruction or Data Encrypted for Impact on the data stores of services like Exchange and SQL Server.
Operate intrusion detection, analysis, and response systems on a separate network from the production environment to lessen the chances that an adversary can see and interfere with critical response functions.
|M1022||Restrict File and Directory Permissions||
Ensure proper process and file permissions are in place to inhibit adversaries from disabling or interfering with critical services.
|M1024||Restrict Registry Permissions||
Ensure proper registry permissions are in place to inhibit adversaries from disabling or interfering with critical services.
|M1018||User Account Management||
Limit privileges of user accounts and groups so that only authorized administrators can interact with service changes and service configurations.
|ID||Data Source||Data Component||Detects|
Monitor executed commands and arguments that may stop or disable services on a system to render those services unavailable to legitimate users.
Monitor for changes made to files that may stop or disable services on a system to render those services unavailable to legitimate users.
|DS0009||Process||OS API Execution||
Remote access tools with built-in features may interact directly with the Windows API to perform these functions outside of typical system utilities. For example,
Monitor for newly executed processes that may stop or disable services on a system to render those services unavailable to legitimate users.
Monitor processes and command-line arguments to see if critical processes are terminated or stop running.
Alterations to the service binary path or the service startup type changed to disabled may be suspicious.
|DS0024||Windows Registry||Windows Registry Key Modification||
Monitor for changes made to windows registry keys and/or values that may stop or disable services on a system to render those services unavailable to legitimate users.