[KB6567] You receive an ESET UEFI detection

Issue

Details

UEFI Detections

Since UEFI detections are specific to the hardware firmware that they are on, ESET cannot remove a UEFI detection. See the Solution section for possible remediation steps you can take.

The UEFI firmware loads into the memory at the beginning of the boot process. It is stored in a flash memory chip soldered onto the mainboard. If attackers infect the firmware, they can deploy malware that survives system reinstallations, reboots, and even new hard drive installations. The malware can also remain unnoticed by antimalware solutions since most of them do not scan the firmware layer.

The ESET UEFI Scanner adds an industry-first protection layer against UEFI bootkits by scanning for malware in the firmware layer. 

The following ESET products contain the UEFI scanner:

  • ESET Mail Security for Microsoft Exchange Server (version 7)
  • ESET File Security for Microsoft Windows Server (version 7)
  • ESET Security for Microsoft SharePoint Server (version 7)
  • ESET Mail Security for IBM Domino (version 7)
  • ESET File Security for Azure
  • ESET Smart Security Premium (version 11 and later)
  • ESET Internet Security (version 11 and later)
  • ESET NOD32 Antivirus (version 11 and later)
  • ESET Endpoint Security/Antivirus (version 7 and later)

Solution

How to resolve ESET UEFI detections

If you are not familiar with UEFI

If you are not familiar with UEFI settings or the updating/flashing process, we recommend that you contact an experienced professional to help with this procedure.

Figure 1-1

How to protect your computer from UEFI malware

  • Use a computer with a newer chipset
    Verify all of your systems have modern chipsets with Platform Controller Hub (starting from Intel Series 5 chipsets onwards).

  • Ensure that your computer has Secure Boot enabled  
    Typically, UEFI malware is not properly signed and having Secure Boot enabled will keep it from loading and infecting your computer.

  • Upgrade your UEFI firmware on your computer
    We recommend that you perform a UEFI firmware update even if your computer does not notify you of a detection. As a preventive measure, it may help minimize the chances of this type of infection. 

ESET detects UEFI malware or applications

UEFI scanning is available in the latest versions of ESET products. See the Details section above for a list of ESET products that contain the UEFI scanner. 

By default, the detection of potentially unsafe or unwanted applications is disabled in ESET products. Because UEFI infections are very specific to the hardware firmware that they infect, ESET can only detect and notify you of a UEFI infection. UEFI is only scanned during startup scan or during On-demand scan when the option "Boot sectors/UEFI" is selected.

Figure 1-1

If you are still unable to resolve your issue, email ESET Technical Support.