If it is updated, new versions of the keylogging program will be installed on the system, and the logging begins anew. Users who operate affected devices need to make sure that the software is not updated. Instead, however, the developer has introduced a number of diagnostic and debugging features to ensure that all keystrokes are either broadcasted through a debugging interface or written to a log file in a public directory on the hard-drive. Modzero has an answer for that as well.Īctually, the purpose of the software is to recognize whether a special key has been pressed or released. You probably wonder why the keylogger was added to the driver in first place. Monitoring of keystrokes is added by implementing a low-level keyboard input hook function that is installed by calling SetwindowsHookEx(). Modzero reveals the following about the keylogging component: Its main function is to provide functionality between key presses on the device, and certain audio driver features such as muting the microphone. The program is scheduled to run right after user login, and starts to capture keystrokes as soon as it runs. The executable file MicTray (in its 64-bit and/or 32-bit variant) is installed with the Conexant audio driver. Check if C:\Users\Public\MicTray.log exists.If it does, delete the file, or rename it. Check if C:\Windows\System32\MicTray.exe exists. ![]() Check if C:\Windows\System32\MicTray64.exe exists.If you run these, make sure you delete the information from those as well to avoid potential leaks. While that is better than if it would not be overwritten, backups, file history, or other services that create copies of the file may have saved previous versions of it. Please note however that the file is overwritten after each login. Since all keystrokes are logged to the text file, it may contain sensitive information such as authentication data, credit card numbers, and personal chat messages or emails. ![]() Modzero suggests that users check whether the files C:\Windows\System32\MicTray64.exe and C:\Windows\System32\MicTray.exe exist, and if they do, delete or rename the executable files to stop the keylogger.Īdditionally, users need to check for the existence of the C:\Users\Public\MicTray.log file, and if it exists, delete it. You can consult the full list of affected devices here. The company lists HP EliteBook, HP ProBook, HP Elite, and HP ZBook models on its website, and the operating systems Windows 7 and Windows 10. Detectionįirst thing you need to know is that only HP devices appear to be affected by this. So, lets start with it and address the first question afterwards. ![]() ![]() The second question is more pressing than the first. First, why a keylogger is in the audio driver, and second, how to make sure it is not running on your HP devices. Note that the log file is written to the Public folder, and not the user specific folder. The keylogger is built-into the driver, records all keystrokes made by users of the system, and saves them all to a logfile MicTray.log in the C:\Users\Public\ of the computer system.
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