What is ScrTrust.dll?

ScrTrust.dll is a Windows DLL file. DLL is the abbreviation for Dynamic Link Library. DLL files are needed by programs or web browser extensions, because they contain program code, data, and resources. The following information can help you determine if ScrTrust.dll is a Windows system file or if it belongs to an application that you can trust.

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ScrTrust.dll file information

The process known as ScriptBlocking Trust Verifier or Norton AntiVirus ScripBlocking Trust DLL belongs to software Symantec Script Blocking or Norton AntiVirus by Symantec (

Description: ScrTrust.dll is not essential for the Windows OS and causes relatively few problems. The ScrTrust.dll file is located in a subfolder of "C:\Program Files\Common Files" (typically C:\Program Files\Common Files\Symantec Shared\Script Blocking\). Known file sizes on Windows 10/8/7/XP are 32,880 bytes (50% of all occurrences), 54,408 bytes or 66,784 bytes. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. The program is not visible. ScrTrust.dll is a Verisign signed file. The file has a digital signature. There is no detailed description of this service. It can change the behavior of other programs or manipulate other programs. ScrTrust.dll is not a Windows system file. Therefore the technical security rating is 40% dangerous, however you should also read the user reviews.

Uninstalling this variant: There is a possibility to safely remove the program using the uninstall program of Symantec Script Blocking (Control Panel ⇒ Uninstall a Program).

Recommended: Identify ScrTrust.dll related errors

Important: Some malware camouflages itself as ScrTrust.dll, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the ScrTrust.dll process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

could not manage to disable it without deinstalling Norton Internet Security.
  Lucas B.   (further information)
seems to be some Norton stuff
Part of Symantec Norton Internet Security suite
  Georg   (further information)
Necessary to keep Norton running and keep your computer running safe... If you find out diff... let us know..

Summary: Average user rating of ScrTrust.dll: based on 3 votes with 4 user comments. 2 users think ScrTrust.dll is essential for Windows or an installed application. One user thinks it's probably harmless. One user is not sure about it.

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Best practices for resolving ScrTrust issues

A clean and tidy computer is the key requirement for avoiding problems with ScrTrust. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the ScrTrust.dll process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

ScrTrust.dll [all]