HP’s Built-in Keystroke Logger

Many HP laptops have a built-in keylogger in their audio drivers according to computer security firm Modzero AG (via Ars’ Dan Goodin). Keyloggers record what you type, typically covertly, for the purposes of someone else getting access to that text data later on. In this case the researches did not find any malicious capability in the driver that uploads the recorded text to a remote location, but it is very easy to access the data coming out of the driver by anyone who has access to your computer.

It would make it very easy for a piece of malware on your computer to track what you type without jumping through extra steps.

That HP shipped this audio driver on their laptops to thousands or millions of customers since 2015 is very worrying.

You can test your HP laptop for this vulnerability by checking the list of affected models after the break or just delete these files if they’re installed on your computer:
C:\Users\Public\MicTray.log
C:\Windows\System32\MicTray64.exe
C:\Windows\System32\MicTray.exe

  • HP EliteBook 820 G3 Notebook PC
  • HP EliteBook 828 G3 Notebook PC
  • HP EliteBook 840 G3 Notebook PC
  • HP EliteBook 848 G3 Notebook PC
  • HP EliteBook 850 G3 Notebook PC
  • HP ProBook 640 G2 Notebook PC
  • HP ProBook 650 G2 Notebook PC
  • HP ProBook 645 G2 Notebook PC
  • HP ProBook 655 G2 Notebook PC
  • HP ProBook 450 G3 Notebook PC
  • HP ProBook 430 G3 Notebook PC
  • HP ProBook 440 G3 Notebook PC
  • HP ProBook 446 G3 Notebook PC
  • HP ProBook 470 G3 Notebook PC
  • HP ProBook 455 G3 Notebook PC
  • HP EliteBook 725 G3 Notebook PC
  • HP EliteBook 745 G3 Notebook PC
  • HP EliteBook 755 G3 Notebook PC
  • HP EliteBook 1030 G1 Notebook PC
  • HP ZBook 15u G3 Mobile Workstation
  • HP Elite x2 1012 G1 Tablet
  • HP Elite x2 1012 G1 with Travel Keyboard
  • HP Elite x2 1012 G1 Advanced Keyboard
  • HP EliteBook Folio 1040 G3 Notebook PC
  • HP ZBook 17 G3 Mobile Workstation
  • HP ZBook 15 G3 Mobile Workstation
  • HP ZBook Studio G3 Mobile Workstation
  • HP EliteBook Folio G1 Notebook PC

Author: Jack Slater

A Philadelphian exiled to Hawaii. You can follow or contact me on Twitter where I’m @TimeDoctor, via the contact page, or via e-mail to zjs AT zacharyjackslater dot com

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