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Hello, did a scan because CMD was running on start-up then closes itself, it was weird, and now Malwarebytes detected severals PUPs (yontoo and yahoo) and Hijack.Autorun in a registry. I put them in quarantine, did a reboot, now PC only starts up with CMD and blackscreen, so I have to type in manually start explorer,  then everything works fine, what should I do with the malware, and how to fix the blackscreen issue? Thanks.

EDIT: Starting Windows with Safe Mode with or without networking have the same issue.
 

FRST.txt

Addition.txt

Edited by mistercrab
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Hi mistercrab :)

My name is Aura and I'll be assisting you with your malware issue. Since we'll be working together, you can call me Aura or Yoan, which is my real name, it's up to you! Now that we've broke the ice, I'll just ask you a few things during the time we'll be working together to clean your system and get it back to an operational state.

  • As you'll notice, the logs we are asking for here are quite lenghty, so it's normal for me to not reply exactly after you post them. This is because I need some time to analyse them and then act accordingly. However, I'll always reply within 24 hours, 48 hours at most if something unexpected happens
  • As long as I'm assisting you on Malwarebytes Forums, in this thread, I'll ask you to not seek assistance anywhere else for any issue related to the system we are working on. If you have an issue, question, etc. about your computer, please ask it in this thread and I'll assist you
  • The same principle applies to any modifications you make to your system, I would like you to ask me before you do any manipulations that aren't in the instructions I posted. This is to ensure that we are operating in sync and I know exactly what's happening on your system
  • If you aren't sure about an instruction I'm giving you, ask me about it. This is to ensure that the clean-up process goes without any issue. I'll answer you and even give you more precise instructions/explanations if you need. There's no shame in asking questions here, better be safe than sorry!
  • If you don't reply to your thread within 3 days, I'll bump this thread to let you know that I'm waiting for you. If you don't reply after 5 days, it'll be closed. If you return after that period, you can send me a PM to get it unlocked and we'll continue where we left off;
  • Since malware can work quickly, we want to get rid of them as fast as we can, before they make unknown changes to the system. This being said, I would appreciate if you could reply to this thread within 24 hours of me posting. This way, we'll have a good clean-up rhythm and the chances of complications will be reduced
  • I'm against any form of pirated, illegal and counterfeit software and material. So if you have any installed on your system, I'll ask you to uninstall them right now. You don't have to tell me if you indeed had some or not, I'll give you the benefit of the doubt. Plus, this would be against Malwarebytes Forums's rules
  • In the end, you are the one asking for assistance here. So if you wish to go a different way during the clean-up, like format and reinstall Windows, you are free to do so. I would appreciate you to let me know about it first, and if you need, I can also assist you in the process
  • I would appreciate if you were to stay with me until the end, which means, until I declare your system clean. Just because your system isn't behaving weirdly anymore, or is running better than before, it doesn't mean that the infection is completely gone
    This being said, I have a full time job so sometimes it'll take longer for me to reply to you. Don't worry, you'll be my first priority as soon as I get home and have time to look at your thread


This being said, it's time to clean-up some malware, so let's get started, shall we? :)

Can you provide me the Malwarebytes log where I can see the Hijack.Autorun detection?

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Alright, follow the instructions below.

iO3R662.pngFarbar Recovery Scan Tool (FRST) - Fix mode
Follow the instructions below to execute a fix on your system using FRST, and provide the log in your next reply.

  • Download the attached fixlist.txt file, and save it on your Desktop (or wherever your FRST.exe/FRST64.exe executable is located)
  • Right-click on the FRST executable and select Spcusrh.pngRun as Administrator (for Windows Vista, 7, 8, 8.1 and 10 users)
  • Click on the Fix button
    NYA5Cbr.png
  • On completion, a message will come up saying that the fix has been completed and it'll open a log in Notepad
  • Copy and paste its content in your next reply

fixlist.txt

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Fix result of Farbar Recovery Scan Tool (x64) Version: 18-11-2017
Ran by Vedran (18-11-2017 13:17:09) Run:1
Running from C:\Users\Vedran\Desktop
Loaded Profiles: Vedran &  (Available Profiles: Vedran)
Boot Mode: Normal
==============================================

fixlist content:
*****************
CloseProcesses:
CreateRestorePoint:

HKLM\SOFTWARE\Policies\Microsoft\Windows Defender: Restriction <==== ATTENTION
HKU\S-1-5-21-3132166389-607629509-1695856137-1001\...\Winlogon: [Shell] C:\Windows\System32\cmd.exe [345088 2010-11-21] (Microsoft Corporation) <==== ATTENTION

HKU\S-1-5-21-3132166389-607629509-1695856137-1001\Software\Microsoft\Internet Explorer\Main,Start Page = hxxps://www.yahoo.com/?fr=vmn&type=vmn__webcompa__1_0__ya__hp_WCYID10099_swoc_campaign_150430__yaie

Task: {8D3D3A06-BB6C-4D2B-B78E-0FF0CAB7E92E} - System32\Tasks\{07F1F425-8614-4143-BEB4-164FA10ED7E3} => "c:\program files (x86)\mozilla firefox\firefox.exe" hxxp://ui.skype.com/ui/0/7.7.0.103/hr/abandoninstall?page=tsProgressBar
Task: {E5060351-954B-4034-B668-83F8394E5CBC} - System32\Tasks\{1645526D-187B-4BF9-AACA-CF7EB2B3A0F7} => "c:\program files (x86)\mozilla firefox\firefox.exe" hxxp://ui.skype.com/ui/0/7.7.0.103/hr/abandoninstall?page=tsBing

AlternateDataStreams: C:\ProgramData\TEMP:FB6A21E3 [430]

EmptyTemp:
*****************

Processes closed successfully.
Restore point was successfully created.
HKLM\SOFTWARE\Policies\Microsoft\Windows Defender => key removed successfully
HKU\S-1-5-21-3132166389-607629509-1695856137-1001\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\\Shell => value removed successfully
HKU\S-1-5-21-3132166389-607629509-1695856137-1001\Software\Microsoft\Internet Explorer\Main\\Start Page => value restored successfully
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Plain\{8D3D3A06-BB6C-4D2B-B78E-0FF0CAB7E92E} => key removed successfully
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{8D3D3A06-BB6C-4D2B-B78E-0FF0CAB7E92E} => key removed successfully
C:\Windows\System32\Tasks\{07F1F425-8614-4143-BEB4-164FA10ED7E3} => moved successfully
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\{07F1F425-8614-4143-BEB4-164FA10ED7E3} => key removed successfully
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Plain\{E5060351-954B-4034-B668-83F8394E5CBC} => key removed successfully
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{E5060351-954B-4034-B668-83F8394E5CBC} => key removed successfully
C:\Windows\System32\Tasks\{1645526D-187B-4BF9-AACA-CF7EB2B3A0F7} => moved successfully
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\{1645526D-187B-4BF9-AACA-CF7EB2B3A0F7} => key removed successfully
C:\ProgramData\TEMP => ":FB6A21E3" ADS removed successfully.

=========== EmptyTemp: ==========

BITS transfer queue => 0 B
DOMStore, IE Recovery, AppCache, Feeds Cache, Thumbcache, IconCache => 48959293 B
Java, Flash, Steam htmlcache => 591255759 B
Windows/system/drivers => 53992478 B
Edge => 0 B
Chrome => 262827867 B
Firefox => 803511413 B
Opera => 0 B

Temp, IE cache, history, cookies, recent:
Users => 0 B
Default => 0 B
Public => 0 B
ProgramData => 0 B
systemprofile => 100688 B
systemprofile32 => 692 B
LocalService => 116035 B
NetworkService => 10558 B
Vedran => 321565190 B

RecycleBin => 1393988926 B
EmptyTemp: => 3.2 GB temporary data Removed.

================================


The system needed a reboot.

==== End of Fixlog 13:21:40 ====

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Glad we could help. :)If you need this topic reopened, please send a Private Message to any one of the moderating team members. Please include a link to this thread with your request. This applies only to the originator of this thread.Other members who need assistance please start your own topic in a new thread. Thanks!

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