What can you do to proactively protect against DLL injection on your organization's Exchange server?
What can you do to proactively protect against DLL injection on your organization's Exchange server?
To proactively protect against DLL injection, it is crucial to prevent unauthorized modification and monitoring of critical files. Limiting Debug rights helps minimize the risk of DLL injection, as debug privileges can allow an attacker to manipulate running processes. In addition, taking cryptographic checksums of important files enables the detection of unauthorized changes, providing a mechanism to identify potential injections. Therefore, limiting Debug rights and taking cryptographic checksums of important files is the most effective strategy to protect against DLL injection.
It's C. Option B does not specify which ls and echo flags should be used and does not state to alert if some change occurs. Option D is not the best option because limiting Debug rights only to the Administrators' group may still leave the system vulnerable to attacks from users within that group and Event Viewer may not provide real-time detection. Option A is also not the best option because DLL injection may not target important registries changes Option C suggest the best approach (of offered options). By limiting debug right (Debug Privileges: https://learn.microsoft.com/en-us/windows-hardware/drivers/debugger/debug-privilege) analyst could prevent DLL injection and by taking checksum analyst could detect if unauthorised DLL was injected.