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.JunkCleaner

PUA.JunkCleaner

Updated:
03 September 2018
Infection Length:
Varies
Name:
Junk Cleaner
Version:
2.1.0.1
Publisher:
Fresco3
Risk Impact:
Low
Systems Affected:
Windows

Behavior

PUA.JunkCleaner is a potentially unwanted application that gives misleading information about issues on the computer.

Antivirus Protection Dates

  • Initial Rapid Release version 03 September 2018 revision 002
  • Latest Rapid Release version 24 January 2019 revision 005
  • Initial Daily Certified version 03 September 2018 revision 008
  • Latest Daily Certified version 24 January 2019 revision 008
  • Initial Weekly Certified release date 05 September 2018
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Once executed, the application creates the following folder:
  • %Windir%\Installer\SourceHash{FC9D404B-E23E-463C-8570-6E78E6E7428F}

The application creates the following files:
  • %ProgramFiles%\Fesco3\JunkCleaner\ClearBrowserHistory.dll
  • %ProgramFiles%\Fesco3\JunkCleaner\ClearClipboard.dll
  • %ProgramFiles%\Fesco3\JunkCleaner\ClearRecycleBin.dll
  • %ProgramFiles%\Fesco3\JunkCleaner\JunkCleaner.application
  • %ProgramFiles%\Fesco3\JunkCleaner\JunkCleaner.exe
  • %ProgramFiles%\Fesco3\JunkCleaner\JunkCleaner.exe.config
  • %ProgramFiles%\Fesco3\JunkCleaner\JunkCleaner.exe.manifest
  • %ProgramFiles%\Fesco3\JunkCleaner\JunkCleaner.pdb
  • %ProgramFiles%\Fesco3\JunkCleaner\JunkCleaner.vshost.exe
  • %ProgramFiles%\Fesco3\JunkCleaner\JunkCleaner.vshost.exe.manifest
  • %ProgramFiles%\Fesco3\JunkCleaner\Microsoft.QualityTools.Testing.Fakes.dll
  • %ProgramFiles%\Fesco3\JunkCleaner\MyPC Cleaner.vshost.exe.manifest
  • %ProgramFiles%\Fesco3\JunkCleaner\RunClearHistory.dll
  • %SystemDrive%\ProgramData\Microsoft\Windows\Start Menu\Programs\JunkCleaner\JunkCleaner.exe.lnk
  • %AllUsersProfile%\Microsoft\Windows\Start Menu\Programs\JunkCleaner\JunkCleaner.exe.lnk
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\aicustact.dll
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\banner
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\cmdlinkarrow
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\completi
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\custicon
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\dialog
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\exclamic
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\info
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\insticon
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\lzmaextractor.dll
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\New
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\Prereq.dll
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\removico
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\repairic
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\SoftwareDetector.dll
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\tabback
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\Up
  • %AllUsersProfile%\PC12\AppData\Local\Temp\AI_EXTUI_BIN_3188\viewer.exe
  • %AllUsersProfile%\PC12\AppData\Local\Temp\{FC9D404B-E23E-463C-8570-6E78E6E7428F}\JunkCleaner.msi
  • %AllUsersProfile%\PC12\AppData\Local\Temp\{FC9D404B-E23E-463C-8570-6E78E6E7428F}\JunkCleaner1.cab
  • %AllUsersProfile%\PC12\Documents\junkCleaner.xml
  • %AllUsersProfile%\Public\Desktop\JunkCleaner.exe.lnk
  • %Windir%\Installer\{FC9D404B-E23E-463C-8570-6E78E6E7428F}\icoLogo.exe

The application then creates the following registry subkeys:
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\JunkCleaner_RASAPI32
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\JunkCleaner_RASMANCS
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{FC9D404B-E23E-463C-8570-6E78E6E7428F}
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Features\B404D9CFE32EC3645807E6876E7E24F8
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\B404D9CFE32EC3645807E6876E7E24F8
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\B404D9CFE32EC3645807E6876E7E24F8\SourceList
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\B404D9CFE32EC3645807E6876E7E24F8\SourceList\Media
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\B404D9CFE32EC3645807E6876E7E24F8\SourceList\Net
  • HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\UpgradeCodes\3A89DB4511EAAD64097A11021C1031AE
  • HKEY_LOCAL_MACHINE\SOFTWARE\Caphyon
  • HKEY_LOCAL_MACHINE\SOFTWARE\Caphyon\Advanced Installer
  • HKEY_LOCAL_MACHINE\SOFTWARE\Caphyon\Advanced Installer\LZMA
  • HKEY_LOCAL_MACHINE\SOFTWARE\Caphyon\Advanced Installer\LZMA\{FC9D404B-E23E-463C-8570-6E78E6E7428F}
  • HKEY_LOCAL_MACHINE\SOFTWARE\Caphyon\Advanced Installer\LZMA\{FC9D404B-E23E-463C-8570-6E78E6E7428F}\1.0.0
  • HKEY_LOCAL_MACHINE\SOFTWARE\Fesco3
  • HKEY_LOCAL_MACHINE\SOFTWARE\Fesco3\JunkCleaner

The application does not provide any EULA or privacy policy.

Clicking the close button does not close the application.

The application attempts to mislead the user by displaying a pop-up message stating that the computer is in a critical state because of a malware attack and that the computer's antivirus program has crashed.


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
For information on how to run a full system scan using your Symantec product, follow the guidance given in the product's Help section.


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.