Trojan:JS/ScriptStager

Classification

Category :

Malware

Type :

Trojan

Aliases :

Trojan:JS/ScriptStager

Summary

A script file has triggered a DeepGuard heuristic detection because it tries to install or run harmful programs, or contains instructions to do so.

Removal

The F-Secure security product will automatically block the file from running.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

About DeepGuard

When a file or program is first launched, F-Secure's security programs verify its safety from the Security Cloud file reputation service. If it cannot be verified, DeepGuard starts to monitor its behavior. DeepGuard automatically blocks files or programs that try to make potentially harmful changes to the system.

A script is a small program or piece of code used to automate minor tasks in applications or on websites, and to add extra functions or behaviors.

While scripts are often used for legitimate and helpful tasks, they can also be used in a harmful context to automate the tasks involved in installing or running harmful programs such as trojans or exploits.

Scripts can be written in many languages; one of the most commonly used is JavaScript (JS). Many webpages include JS scripts to add interactivity or improve their usability.