Trojan.ForcedExtension.ChrPRST

Short bio

Trojan.ForcedExtension.ChrPRST is Malwarebytes’ detection name for a Chrome extension called Cookies On-Off.

Symptoms

Trojan.ForcedExtension.ChrPRST shows advertisements in new tabs and pop-unders each time the user opens a new tab or visits a new site. Some of these advertisements will lead to additional PUPs and malware.

Type and source of the infection

Trojan.ForcedExtension.ChrPRST was forced upon visitors of certain compromised sites. The extension is protected against removal by a Chrome policy.

Protection

Trojan.ForcedExtension.ChrPRST is a “removal only” detection. Malwarebytes protects against Trojan.ForcedExtension.ChrPRST by blocking the sites that push this extension.

Remediation

Malwarebytes can detect and remove Trojan.ForcedExtension.ChrPRST without further user interaction.

  1. Please download Malwarebytes to your desktop.
  2. Double-click MBSetup.exe and follow the prompts to install the program.
  3. When your Malwarebytes for Windows installation completes, the program opens to the Welcome to Malwarebytes screen.
  4. Click on the Get startedbutton.
  5. Click Scan to start a Threat Scan.
  6. Click Quarantine to remove the found threats.
  7. Reboot the system if prompted to complete the removal process.

Traces/IOCs

Chrome extension:

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