COM Hijacking

Created the Saturday 23 March 2019. Updated 5 months ago.

COM hijacking is a technique used by adversaries to insert malicious code into the Windows operating system through the Microsoft Component Object Model (COM).

COM is a system that allows software components to interact with each other, and adversaries can abuse this system to execute their own code in place of legitimate software. To achieve this, they alter references and relationships in the COM system by modifying the Windows Registry. Specifically, they replace a reference to a legitimate system component with a reference to their own malicious code.

When the legitimate component is executed through normal system operation, the adversary's code is executed instead. This can provide a means for the adversary to achieve persistence, as they can choose to hijack objects that are used frequently enough to maintain a consistent level of persistence. However, they must be careful not to break noticeable functionality within the system, as this could cause system instability and potentially lead to detection.

Code Snippets


Additional Resources

External Links

The resources provided below are associated links that will give you even more detailed information and research on current evasion technique. It is important to note that, while these resources may be helpful, it is important to exercise caution when following external links. As always, be careful when clicking on links from unknown sources, as they may lead to malicious content.

Subscribe to our Newsletter

The information entered into this form is mandatory. It will be subjected to computer processing. It is processed by computer in order to support our users and readers. The recipients of the data will be :

According to the Data Protection Act of January 6th, 1978, you have at any time, a right of access to and rectification of all of your personal data. If you wish to exercise this right and gain access to your personal data, please write to Thomas Roccia at

You may also oppose, for legitimate reasons, the processing of your personal data.