PUA.Gyplyraminer

PUA.Gyplyraminer

Updated:
24 June 2016
Infection Length:
Varies
Name:
Gyplyra Miner
Risk Impact:
Low
Systems Affected:
Windows

Behavior

PUA.Gyplyraminer is a potentially unwanted application that uses the computer's CPU to mine digital currencies.

Antivirus Protection Dates

  • Initial Rapid Release version 24 June 2016
  • Latest Rapid Release version 26 March 2018 revision 049
  • Initial Daily Certified version 24 June 2016
  • Latest Daily Certified version 27 March 2018 revision 002
  • Initial Weekly Certified release date 29 June 2016
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
The application installs silently without any user interface and does not install if antivirus software is installed on the computer. It does not display a EULA.

Once executed, the application creates the following folders:
  • %AppData%\Roaming\cpuminer
  • %AppData%\Roaming\gplyra
  • %AppData%\Local\Microsoft\Windows\1033

The application creates the following files:
  • %AppData%\Local\Temp\nscD979.tmp
  • %AppData%\Local\Temp\nsxE05D.tmp
  • %AppData%\Roaming\cpuminer\cpm.exe
  • %AppData%\Roaming\cpuminer\cpuminer-conf.json
  • %AppData%\Roaming\cpuminer\cpuminer-uninst.exe
  • %AppData%\Roaming\cpuminer\msvcr120.dll

Next, the application creates the following registry entry so that it runs every time Windows starts:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\"cpuminer" = "%AppData%\Roaming\cpuminer\cpm.exe"

The application also creates the following registry entries:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\cpuminer\"MAC" = "PRITI-PC"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\cpuminer\"UUID" = "FebF5irKg3Vo1Gjx"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\cpuminer\"DisplayVersion" = "1.2"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\cpuminer\"Publisher" = "Open Source"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\cpuminer\"DisplayIcon" = "%AppData%\Roaming\cpuminer\cpm.exe"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\cpuminer\"InstallLocation" = "%AppData%\Roaming\cpuminer"
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\cpuminer\"EstimatedSize" = "42"

The application can be used to mine digital currency and uses more than 30 percent of the computers CPU while doing so.

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 .


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 .


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.