PUP.Optional.NotChromeRun

Short bio

PUP.Optional.NotChromeRun is a generic detection for values under the registry key, HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run, that point to a file called Chrome.exe. However, the said file is not the actual Chrome browser executable. In most cases, this is a Chromium build that is planted by malware or PUPs.

Remediation

Malwarebytes can detect and remove PUP.Optional.NotChromeRun without further user interaction.

  1. Please download Malwarebytes to your desktop.
  2. Double-click mb3-setup-consumer-{version}.exe and follow the prompts to install the program.
  3. Then click Finish.
  4. Once the program has fully updated, select Scan Now on the Dashboard. Or select the Threat Scan from the Scan menu.
  5. If another update of the definitions is available, it will be implemented before the rest of the scanning procedure.
  6. When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
  7. Restart your computer when prompted to do so.

Remediation

When PUP.Optional.NotChromeRun is detected on your computer, Malwarebytes for Windows does not know if it was authorized. Optimization software, malware, and potentially unwanted programs (PUPs) are known to make these types of changes, hence they are regarded as potentially unwanted.

To have Malwarebytes for Windows ignore PUP.Optional.NotChromeRun, you must add PUP.Optional.NotChromeRun as an exclusion.

  1. Open Malwarebytes for Windows.
  2. Click Settings, then click the Protection tab.
  3. Scroll down to the bottom.
  4. Turn off Automatically quarantine detected malware. Turning this setting off prevents Malwarebytes for Windows from quarantining the PUM automatically.
  5. Go to the Dashboard, then click Scan Now.
  6. When the Threat Scan Results appear, uncheck the box next to the detected PUM you want to keep.
  7. Click Next.
  8. On the Remaining Items window, click Ignore Always to add the exclude the detected PUM(s).
  9. Turn on Automatically quarantine detected malware.To find this setting, click Settings > Protection.

When PUP.Optional.NotChromeRun is excluded, Malwarebytes for Windows does not detect PUP.Optional.NotChromeRun during scans or real-time protection.

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