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PUP keeps coming back

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PUP.Optional.Leacy keeps coming back when I restart the computer by scanning with adwcleaner. Below is the log file:

# AdwCleaner - Logfile created on Tue Aug 15 02:21:47 2017
# Updated on 2017/05/08 by Malwarebytes
# Database: 08-11-2017.1
# Running on Windows 10 Home Single Language (X64)
# Mode: scan
# Support: https://www.malwarebytes.com/support

***** [ Services ] *****

No malicious services found.

***** [ Folders ] *****

No malicious folders found.

***** [ Files ] *****

PUP.Optional.Legacy, C:\Windows\System32\config\systemprofile\appdata\local\installationconfiguration.xml

***** [ DLL ] *****

No malicious DLLs found.

***** [ WMI ] *****

No malicious WMI found.

***** [ Shortcuts ] *****

No malicious shortcuts found.

***** [ Tasks ] *****

No malicious tasks found.

***** [ Registry ] *****

No malicious registry entries found.

***** [ Firefox (and derivatives) ] *****

No malicious Firefox entries.

***** [ Chromium (and derivatives) ] *****

No malicious Chromium entries.


C:/AdwCleaner/AdwCleaner[C0].txt - [4557 B] - [2017/8/12 2:44:41]
C:/AdwCleaner/AdwCleaner[C1].txt - [1362 B] - [2017/8/12 2:49:26]
C:/AdwCleaner/AdwCleaner[C2].txt - [1483 B] - [2017/8/14 23:47:49]
C:/AdwCleaner/AdwCleaner[C3].txt - [1683 B] - [2017/8/15 1:1:17]
C:/AdwCleaner/AdwCleaner[C4].txt - [1815 B] - [2017/8/15 1:9:4]
C:/AdwCleaner/AdwCleaner[S0].txt - [5087 B] - [2017/8/12 2:44:11]
C:/AdwCleaner/AdwCleaner[S1].txt - [1205 B] - [2017/8/12 2:49:9]
C:/AdwCleaner/AdwCleaner[S2].txt - [1310 B] - [2017/8/14 23:41:33]
C:/AdwCleaner/AdwCleaner[S3].txt - [1446 B] - [2017/8/14 23:53:2]
C:/AdwCleaner/AdwCleaner[S4].txt - [1513 B] - [2017/8/15 1:1:0]
C:/AdwCleaner/AdwCleaner[S5].txt - [1644 B] - [2017/8/15 1:8:55]
C:/AdwCleaner/AdwCleaner[S6].txt - [1775 B] - [2017/8/15 1:37:48]

########## EOF - C:\AdwCleaner\AdwCleaner[S7].txt ##########



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My name is Valinorum and I will be the acolyte today. Before we proceed, please, acknowledge yourself the following(s):

  • Please do not create any new threads on this while we are working on your system as it wastes another volunteer's time. If you are being helped/have solved the issue/no longer wish to continue, notify me in your reply and I will quickly close this thread. Failing to comply will result in denial of future assistance.
  • Please do not install any new software while we are working on this system as it may hinder our process.
  • Malware removal is a complicated process and so don't stop following the steps even if the symptoms are not found. Keep up with me until I declare you clean.
  • Please do not try to fix anything without being asked.
  • Please do not attach your logs or put them inside code/quote tags. Do a Copy/Paste of the entire contents of the log file and submit it inside your post unless directed otherwise.
  • Please print or save the instructions I give you for quick reference. We may be using Safe mode which will cut you off from the internet and you will not always be able to access this thread.
  • Back up your data. I will not knowingly suggest you any course that might damage your system but sometimes Malware infections are so severe that only option we have is to re-format and re-install the operating system.
  • If you are confused about any instruction, stop and ask. Do not keep on going.
  • Do not repeat the steps if you face any problems.
  • I am not an omniscient. There are things even I cannot foresee. But what I know took years to learn and perfect the skill. This site is run by volunteers who help people in need in their own free time. I would ask you to respect their time and be patient as sometimes real life demands our time and replies to you can be delayed.
  • Private Message(PM) if and only if I have not responded to your thread within three days or your query is offtopic and personal. Do not PM me under any other circumstances. Your thread is the only medium of communication.
  • The fixes are for your system only. Please refrain from using these fixes on another system as it may do serious damage.

Please, peruse the following thread and attach the logs. 


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  • Step #1 ESET Online Scanner
    Disable your security programs which includes but not limited to anti-virus, anti-malware, anti-spyware et cetera. Peruse this for additional information. 
    • Download esetsmartinstaller_enu.exe by clicking here.
    • Right-click on the program and choose Run as administrator.
    • Accept their terms and condition and proceed.
    • Install Add-On/Active X if prompted.
    • From the Computer Scan Setting check the following box --
      • Enable detection for potentially unwanted programs
    • Click on Advanced Setting --
      • Check the box beside Remove Found Threats;
      • Check the box beside Scan archives
      • Check the box beside Scan for potentially unsafe applications
      • Check the box beside Enable Anti-Stealth Technology
    • Click on Start and wait for the virus signature database to update.
    • The online scan will begin automatically and can take several hours.
      • Note: Do not touch either the Mouse or keyboard during the scan. Otherwise it may stall.
    • After the Scan finishes --
      • If no threats were found:
        • Put a checkmark in Uninstall application on close.
        • Close the program and report that nothing was found
      • If threats were found:
        • Open the file located in C:\Program Files\ESET\ESET Online Scanner\log.txt (32-bit) or C:\Program Files (x86)\ESET\ESET Online Scanner\log.txt (64-bit).
        • Copy and Paste contents of the log file in your next reply.

    Note: Enable your security programs afterwards.

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Uninstall the following:
Internet Download Manager 6.27 Build 2

  • Step # Fix with FRST
    Make sure that you still have FRST.exe on your Desktop. If you do not have it, download the suitable version from here to your Desktop.
    • Open Notepad.exe. Do not use any other text editor software;
    • Copy and Paste the contents inside the code-box to your Notepad --
      ShellIconOverlayIdentifiers: [00avast] -> {472083B0-C522-11CF-8763-00608CC02F24} =>  -> No File
      ContextMenuHandlers3: [00avast] -> {472083B0-C522-11CF-8763-00608CC02F24} =>  -> No File
      Task: {8A3A6B54-4A94-49B8-86D3-1BD071C39722} - \klcp_update -> No File <==== ATTENTION
      IE trusted site: HKU\S-1-5-21-3031989780-2063306901-3313814029-1001\...\localhost -> localhost
      HKLM\SOFTWARE\Policies\Microsoft\Windows Defender: Restriction <==== ATTENTION
      GroupPolicy: Restriction <==== ATTENTION
      SearchScopes: HKLM -> DefaultScope value is missing
      SearchScopes: HKLM -> {0633EE93-D776-472f-A0FF-E1416B8B2E3A} URL =
      SearchScopes: HKLM-x32 -> DefaultScope {0633EE93-D776-472f-A0FF-E1416B8B2E3A} URL =
      SearchScopes: HKLM-x32 -> {0633EE93-D776-472f-A0FF-E1416B8B2E3A} URL =
      FF Extension: (Norton Security Toolbar) - C:\ProgramData\Norton\{0C55C096-0F1D-4F28-AAA2-85EF591126E7}\NS_22.10.0.85\coFFAddon [2017-08-12]
    • Click on File > Save as...
      • Inside the File Name box type fixlist.txt;
      • From the Save as type drop down list, choose All Files
    • Save the file to your Desktop;
    • Re-run FRST.exe and click Fix;
      • Note: If FRST advises there is a new updated version to be downloaded, do so/allow this.
    • After the completion, a log will be produced;
    • Copy and Paste the contents of the log in your next reply.

Turn off your browsers' synchronization and reset your browsers. 

Edited by Valinorum
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