Environment:
Overview:
This knowledge base article describes 2 techniques that could be used to safely use the Cylance Uninstall Tool. The techniques provide the ability to temporarily allow use of the tool. It is strongly recommended to only temporarily allow use of the tool.
Cause:
It is strongly recommended by Arctic Wolf that you are enabling the use of this tool with strict security and risk considerations within your environment. Please adhere to recommended security procedures for access and operational control.
Workaround:
Tool Hashes:
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Tool Name |
SHA256 HASH |
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CylanceUninstallTool.0.13.7-x64.exe |
E920D7A425548815250EBB7516F98CD7A007A5C2F001974DB29928A75E3E847A |
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CylanceUninstallTool.0.13.7-x86.exe |
2D7858B9A97641987835A301AC941C3E3CFC47AAC7832FDF7041E12EF6F6FC16 |
Option 1: Policy Safe List (Recommended)
The hashes for the Cylance Uninstall Tool have been added to the Global Quarantine List to prevent it from being used. This method allows the administrator to safely and easily control which devices will allow the tool to execute (control scope) and allow this change to be easily reverted.
It is critically important to delete the Cylance Uninstall Tool and associated files after the operation is complete as well as return the devices to their original Device Policy.
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Steps |
Screenshots |
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Create a copy of the Device Policy applied to the Device or create a new Device Policy and provide an appropriate and relevant name (for example append Cylance Removal Tool):
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Create a copy of the Policy
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Assign the Copied Device Policy to the intended Device:
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Add the appropriate Hashes to the Policy Safe List in the copied Device Policy:
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Ensure the Cylance Removal Uninstall Device Policy has applied to the intended devices:
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Verify on Device:
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Manual Policy Update (if required):
Ensure the correct Device Policy with the Safelisted Hashes is on the device before proceeding. |
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Run the Cylance Uninstall Tool and complete the reinstallation of Aurora Protect and Aurora Focus as per instructions in this article |
***When the task is completed it is critically important to delete the Cylance Removal Tool and all files associated with this operation and return the devices to their original Device Policy***
Option 2: Global Safe List
The hashes for the Cylance Uninstall Tool have been added to the Global Quarantine List to prevent it from being used. This technique allows the administrator to move the hashes for the tool from the Global Quarantine List to the Global Safe List. This will allow the tool to execute on all devices in the tenant. Please note after changes are made to the Global Lists it can take up to 5 minutes for those changes to arrive on the devices.
It is critically important to delete the Cylance Uninstall Tool and associated files after the operation is complete as well as remove the tools hashes from the Global Safe List.
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Steps |
Screenshots |
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Navigate to the Global Quarantine List:
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Add Hash to Global Safe List:
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Add the SHA256 Hash along with any other desired information:
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Confirm your intention to move this Hash from the Global Quarantine List to the Global Safe list:
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Allow a minimum of 5 minutes to pass to allow the Global List change to be synchronized to the devices |
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Run the Cylance Uninstall Tool and complete the reinstallation of Aurora Protect and Aurora Focus as per instructions in this article | |
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After the operation is completed move the Hash back to the Global Quarantine List
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Add the SHA256 Hash to the Global Quarantine List:
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Confirm your intention to move the SHA256 Hash to the Global Quarantine List:
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