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Command line tool to stop, start or perform actions on Sentinel One agent
05/24/2021 
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Description
SentinelCtl.exe is a command line tool that can be used to executes actions on Agent on a Windows endpoint. This can be typically used to unprotect, unload/disable, load/re-enable, protect agent on your devices. We recommend that you do not use this for any other purpose unless Support suggests.
Press the Windows Start key.
Enter: cmd
Right-click Command Prompt and select Run as administrator.
Go to the [C:\Program Files\SentinelOne\Sentinel Agent <Version>]
To run the tool: SentinelCtl.exe <command> [options]
To see all options of a command: SentinelCtl.exe <command> -help
Resolution
Useful commands are as follows:-
> SentinelCtl.exe unprotect -k <S1 Passphrase>
This disables the anti-tampering. Please refer to end of the article on how to obtain S1 Passphrase.
> SentinelCtl.exe unload -m -a
This Stops the Agent services
> SentinelCtl.exe load -m -a
This Starts Agent services.
> SentinelCtl.exe protect
Set Anti-Tampering. Protects the Agent from unauthorized changes or uninstall.
> sentinelctl unquarantine_net -k <S1 Passphrase>
Connect a disconnected endpoint (remove network quarantine).
> SentinelCtl.exe reload -m -a
Stop and then start the Agent services.
> SentinelCtl.exe is_scan_in_progress
To check if Full Disk Scan is in progress.
Return: Full disk scan in progress: with a value of True or False
> SentinelCtl.exe scan_folder -i path
To scan on a folder
Options:
-i, --infile
Folder to scan. If you do not use this parameter, the complete drive is scanned.
> SentinelCtl.exe is_scan_in_progress
To see if full disk scan is in progress
Returns: Full disk scan in progress: with a value of True or False
> SentinelCtl.exe status
To get the status of Agent services and policy basics.
Notes
Mitigation policy: none - The Agent does not enforce policy with mitigation.
Mitigation policy: quarantineThreat - The Agent enforces policy with kill and quarantine mitigation.
> SentinelCtl.exe ever_connected_to_management
Use this to check if S1 agent ever connected to management
Sample output
Mgmt key part: 4ba007899be132d45a1590ds4f2ff2f2f031c4ffa3
This command requires admin privileges (Run as Administrator) but does not require a passphrase.
> SentinelCtl.exe ie_protection [-e|-d] -k <passphrase>
This can be used to Enable or Disable IE protection. Requires reboot to apply.
Options:
-e, --enable
Enable IE protection.
-d, --disable
Disable IE protection.
Please note, S1 Passphrase can be obtained by Capture Client admin (from management console) for the device. Go to "Devices" section and download devices list. Look for "S1 Passphrase" for the respective device in the downloaded list. Screenshots provided below for reference.
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