Keylogger found in preinstalled audio driver According to researchers, the keylogger feature was discovered in the Conexant HD Audio Driver Package version 1.0.0.46 and earlier. This is an audio driver that is preinstalled on HP laptops. One of the files of this audio driver is MicTray64.exe ( C: windows system32 mictray64.exe). This file is registered to start via a Scheduled Task every time the user logs into his computer. According to modzero researchers, the file 'monitors all keystrokes made by the user to capture and react to functions such as microphone mute/unmute keys/hotkeys.'
This behavior, by itself, is not a problem, as many other apps work this way. The problem is that this file writes all keystrokes to a local file at: C: users public MicTray.log Audio driver also exposes keystrokes in real-time via local API If the file doesn't exist or a registry key containing this file's path does not exist or was corrupted, the audio driver will pass all keystrokes to a local API, named the OutputDebugString API. The danger is that malicious software installed on the computer, or a person with physical access to the computer, can copy the log file and have access to historical keystroke data, from where he can extract passwords, chat logs, visited URLs, source code, or any other sensitive data. Furthermore, the OutputDebugString API provides a covert channel for malware to record real-time keystrokes without using native Windows functions, usually under the watchful eye of antivirus software. Keylogger feature confirmed in HP laptops Modzero researchers said they found the Conexant HD Audio Driver Package preinstalled on 28 HP laptop models. Other hardware that uses this driver may also be affected, but investigators haven't officially confirmed that the issue affects other manufacturers. Conexant have not released a public version of the high definition audio drivers, but have sent the high definition smart audio drivers to computer makers such as HP, Lenovo, Toshiba, Dell and ASUS, which led to that different manufacturer Conexant audio drivers are not universal. According to researchers, the keylogger feature was discovered in the Conexant HD Audio Driver Package version 1.0.0.46 and earlier. This is an audio driver that is preinstalled on HP laptops. ![]() Toshiba Conexant Hd Audio DriverAfter upgrading system to Windows 10 or performing a Windows 10 update, if you encounter no sound issue with Conexant SmartAudio HD, you can try solutions below to fix the problem. Solution 1: Update the Conexant SmartAudio HD Driver The problem most probably is caused by driver issues. Conexant Hd Audio Driver Windows 10 Hp DownloadWindows upgrade or update may remove the driver or may cause the driver to be incompatible. So updating the Conexant SmartAudio HD driver mostly would get the sound back. Usually, you can download drivers from device manufacturer or PC manufacturer. Conexant does not produce drivers themselves. If you are using a brand computer, go to your PC manufacturer’s website to download the driver. If not, you can go to the motherboard manufacturer’s website to download the driver. Drivers can always be downloaded in Support or Download section of the website. If you have no idea how to update the driver manually, you can use to help you. Driver Easy is a driver update tool which is compatible with Windows 10. You can use it to scan your computer to detect problem drivers in your computer. If the Conexant SmartAudio HD driver is missing or outdated, it will provide a new driver for you to update. Conexant Audio Driver![]() Conexant Audio Driver Windows 10 Hp ProbookDriver Easy has Free version and Professional version. If you want to have all drivers downloaded and installed automatically, it is recommended that you use the Professional version. With Professional version, you can enjoy free technical support guarantee and 30-day money back guarantee. Driver Easy Professional support team will give you further assistance regarding your Conexant SmartAudio HD no sound issue if you need. Conexant Hd Audio Driver VistaSolution 2: Disable All Audio Enhancements 1. Right-click on the sound icon in bottom right corner of desktop and select Playback devices. Select Speakers (Should show Conexant SmartAudio HD) and right-click on it. Click Properties in pop-up menu. Click Enhancements tab. Check the box next to Disable all enhancements (For some Windows version, you may see Disable all sound effects here.), then click Apply button. Solutions above may help resolve the Conexant SmartAudio HD no sound issue for Windows 10.
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