Threat Explorer

The Threat Explorer is a comprehensive resource consumers can turn to for daily, accurate, up-to-date information on the latest threats, risks and vulnerabilities.

PUA.JScoinminer

PUA.JScoinminer

Updated:
November 03, 2017
Infection Length:
Varies
Risk Impact:
Low
Systems Affected:
Windows

Behavior

PUA.JScoinminer is a detection for a JavaScript cryptocurrency miner that runs in web browsers.

Note: Users that have been impacted by PUA.JScoinminer have seen some success by using the Trojan.Kotver fixtool to clean up their system. It is recommended that you download the tool and run it if you are continuing to have problems.

Antivirus Protection Dates

  • Initial Rapid Release version September 15, 2017 revision 008
  • Latest Rapid Release version December 11, 2017 revision 005
  • Initial Daily Certified version September 16, 2017 revision 001
  • Latest Daily Certified version December 06, 2017 revision 008
  • Initial Weekly Certified release date September 20, 2017
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
PUA.JScoinminer is a detection for a JavaScript cryptocurrency miner that runs in web browsers. The JavaScript is loaded in the browser when the user visits a web page hosting the JavaScript.

The JavaScript runs as long as the user stays on the web page.
You may have arrived at this page either because you have been alerted by your Symantec product about this risk, or you are concerned that your computer has been affected by this risk.

Before proceeding further we recommend that you run a full system scan . If that does not resolve the problem you can try one of the options available below.



FOR NORTON USERS
If you are a Norton product user, we recommend you try the following resources to remove this risk.


Removal Tool

If you have an infected Windows system file, you may need to replace it using the Windows installation CD .

Note: Users that have been impacted by PUA.JScoinminer have seen some success by using the Trojan.Kotver fixtool to clean up their system. It is recommended that you download the tool and run it if you are continuing to have problems.


How to reduce the risk of infection
The following resources provide further information and best practices to help reduce the risk of infection.



FOR BUSINESS USERS
If you are a Symantec business product user, we recommend you try the following resources to remove this risk.


Identifying and submitting suspect files
Submitting suspicious files to Symantec allows us to ensure that our protection capabilities keep up with the ever-changing threat landscape. Submitted files are analyzed by Symantec Security Response and, where necessary, updated definitions are immediately distributed through LiveUpdate™ to all Symantec end points. This ensures that other computers nearby are protected from attack. The following resources may help in identifying suspicious files for submission to Symantec.


Removal Tool

If you have an infected Windows system file, you may need to replace it using the Windows installation CD .

Note: Users that have been impacted by PUA.JScoinminer have seen some success by using the Trojan.Kotver fixtool to clean up their system. It is recommended that you download the tool and run it if you are continuing to have problems.


How to reduce the risk of infection
The following resource provides further information and best practices to help reduce the risk of infection.
Protecting your business network



MANUAL REMOVAL
The following instructions pertain to all current Symantec antivirus products.


1. Performing a full system scan
How to run a full system scan using your Symantec product


2. Restoring settings in the registry
Many risks make modifications to the registry, which could impact the functionality or performance of the compromised computer. While many of these modifications can be restored through various Windows components, it may be necessary to edit the registry. See in the Technical Details of this writeup for information about which registry keys were created or modified. Delete registry subkeys and entries created by the risk and return all modified registry entries to their previous values.
Writeup By: Mark Anthony Balanza