HP issues software patch after keylogger discovered hiding in drivers

HP Laptop

In May, a similar keylogger was discovered in the audio drivers pre-installed on several HP laptop models.

Last week BleepingComputer covered how some HP laptops have a keylogger, or really a debug trace, in a certain version of the the Synaptic keyboard driver.

Now, to check whether you're running an HP laptop with a deactivated keylogger installed, you can head over to the security advisory page and verify your laptop model from the list. While the driver's ability to log keystrokes was disabled by default, it is still a serious security risk that should be fixed on all users of HP laptops.

Myng, who is known online as "ZwClose", learned about the keylogger when he was examining the Synaptics Touchpad software to find out how to control the keyboard backlight. "A party would need administrative privileges in order to take advantage of the vulnerability", the bulletin states.

Chromebook hp laptop
Leftover Synaptics debugger puts a keylogger on laptops

The Company said that they have issued a software patch for its customers to remove the keylogger.

After contacting HP, Mr Myng discovered that the key logging software is available in a huge number of the company's most popular laptops, including models such as Elitebook, Envy, Pavilion and Probook, some of which go back to 2012. The update can be downloaded from HP's website and through Windows Update.

The strings are reportedly connected to a hidden keylogger, which is a program that sends typed characters to an attacker through a Synaptics device driver that could be decoded. The list is hundreds of entries long, so if you own an HP laptop, you'll definitely want to make sure your Synaptics drivers are up-to-date.

Synaptics and HP did not immediately return requests for comment. According to ZwClose, the update will be automatically delivered via Windows Update as well. Taking the few minutes necessary to patch your PC could save you from a world of hurt later on if your PC were to be compromised.

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