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Nanocore stopped responding..

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Hi Tetsuo99 :)

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? :)

Please give me a few hours to review your logs and get back at you.

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Alright. After running the following FRST fix, a .zip file called "DATE-TIME.zip" should be created on your desktop (obviously the DATE and TIME are the date and time on which FRST was ran). Upload that file to the link below please.


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;
  • 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;


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Sorry Found the log file it created


Fix result of Farbar Recovery Scan Tool (x64) Version: 24-05-2017
Ran by Tetsuo (24-05-2017 20:12:22) Run:1
Running from F:\users\tetsuo\Downloads
Loaded Profiles: Tetsuo (Available Profiles: Tetsuo)
Boot Mode: Normal

fixlist content:

Zip: C:\Users\Tetsuo\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\asdij873ha8ud8713.vbs;C:\Users\Tetsuo\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\asdij873ha8ud8713.vbs;C:\Users\Tetsuo\AppData\Roaming\4AF854CF-C54C-4EA3-980E-72088581E9AA

HKLM-x32\...\Run: [] => [X]
HKU\S-1-5-21-1093495427-2693186305-3200290187-1000\...\Run: [GoogleChromeAutoLaunch_DD3B8CA9AEC6D21B84C84FACDCB3737E] => C:\Program Files (x86)\Google\Chrome\Application\chrome.exe [1143640 2017-05-09] (Google Inc.)
Startup: C:\Users\Tetsuo\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\asdij873ha8ud8713.vbs [2017-05-03] ()
GroupPolicy: Restriction <======= ATTENTION

BHO: No Name -> {6C680BAE-655C-4E3D-8FC4-E6A520C3D928} -> No File
BHO-x32: No Name -> {6C680BAE-655C-4E3D-8FC4-E6A520C3D928} -> No File

MSCONFIG\startupreg: GoogleChromeAutoLaunch_DD3B8CA9AEC6D21B84C84FACDCB3737E => "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --no-startup-window /prefetch:5



Processes closed successfully.
Error: (0) Failed to create a restore point.
================== Zip: ===================
C:\Users\Tetsuo\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\asdij873ha8ud8713.vbs -> copied successfully to C:\Users\Tetsuo\Desktop\24.05.2017_20.12.23.zip
C:\Users\Tetsuo\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\asdij873ha8ud8713.vbs -> copied successfully to C:\Users\Tetsuo\Desktop\24.05.2017_20.12.25.zip
C:\Users\Tetsuo\AppData\Roaming\4AF854CF-C54C-4EA3-980E-72088581E9AA -> copied successfully to C:\Users\Tetsuo\Desktop\24.05.2017_20.12.23.zip
=========== Zip: End ===========
HKLM\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\\ => value removed successfully
HKU\S-1-5-21-1093495427-2693186305-3200290187-1000\Software\Microsoft\Windows\CurrentVersion\Run\\GoogleChromeAutoLaunch_DD3B8CA9AEC6D21B84C84FACDCB3737E => value removed successfully
C:\Users\Tetsuo\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\asdij873ha8ud8713.vbs => moved successfully
C:\Windows\system32\GroupPolicy\Machine => moved successfully
C:\Windows\system32\GroupPolicy\GPT.ini => moved successfully
C:\Windows\SysWOW64\GroupPolicy\GPT.ini => moved successfully
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6C680BAE-655C-4E3D-8FC4-E6A520C3D928} => key removed successfully
HKCR\CLSID\{6C680BAE-655C-4E3D-8FC4-E6A520C3D928} => key not found.
HKLM\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{6C680BAE-655C-4E3D-8FC4-E6A520C3D928} => key removed successfully
HKCR\Wow6432Node\CLSID\{6C680BAE-655C-4E3D-8FC4-E6A520C3D928} => key not found.
HKLM\SOFTWARE\Microsoft\Shared Tools\MSConfig\startupreg\GoogleChromeAutoLaunch_DD3B8CA9AEC6D21B84C84FACDCB3737E => key removed successfully
C:\Users\Tetsuo\AppData\Roaming\4AF854CF-C54C-4EA3-980E-72088581E9AA => moved successfully

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

BITS transfer queue => 8388608 B
DOMStore, IE Recovery, AppCache, Feeds Cache, Thumbcache, IconCache => 132596783 B
Java, Flash, Steam htmlcache => 169991701 B
Windows/system/drivers => 22431819 B
Edge => 0 B
Chrome => 364306714 B
Firefox => 395998805 B
Opera => 0 B

Temp, IE cache, history, cookies, recent:
Users => 0 B
Default => 0 B
Public => 0 B
ProgramData => 0 B
systemprofile => 83519 B
systemprofile32 => 66356 B
LocalService => 66228 B
NetworkService => 66228 B
Tetsuo => 1269227057 B

RecycleBin => 0 B
EmptyTemp: => 2.2 GB temporary data Removed.


The system needed a reboot.

==== End of Fixlog 20:13:04 ====

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Well, it looks like the NanoCore stub was located in the temp folder (not a smart move by the person who infected you).


FRST emptied the temp folder, so it should have been deleted. Do you still get the error message about NanoCore?

Edited by Aura
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Good! However, since you were infected with a backdoor trojan, I need to warn you.

Backdoor Trojans, Botnets, and IRCBots are very dangerous because they compromise system integrity by making changes that allow it to be used by the attacker for malicious purposes. They can disable your anti-virus and security tools to prevent detection and removal. Remote attackers use backdoors as a means of accessing and taking control of a computer that bypasses security mechanisms. This type of exploit allows them to steal sensitive information like passwords, personal and financial data which is then sent back to the hacker. Read Danger: Remote Access Trojans.

You should disconnect the computer from the Internet and from any networked computers until it is cleaned. If your computer was used for online banking, paying bills, has credit card information or other sensitive data on it, all passwords should be changed immediately to include those used for taxes, email, eBay, paypal and any other online activities. You should consider them to be compromised and change passwords from a clean computer, not the infected one. If not, an attacker may get the new passwords and transaction information. Banking and credit card institutions should be notified immediately of the possible security breach. Failure to notify your financial institution and local law enforcement can result in refusal to reimburse funds lost due to fraud or similar criminal activity. If using a router, you need to reset it with a strong logon/password before connecting again.

Although the infection has been identified and may be removed, your machine has likely been compromised and there is no way to be sure the computer can ever be trusted again. It is dangerous and incorrect to assume the computer is secure even if the malware appears to have been removed. In some instances an infection may have caused so much damage to your system that it cannot be successfully cleaned or repaired. The malware may leave so many remnants behind that security tools cannot find them. Many experts in the security community believe that once infected with this type of malware, the best course of action is to wipe the drive clean, reformat and reinstall the OS. Please read:

Whenever a system has been compromised by a backdoor payload, it is impossible to know if or how much the backdoor has been used to affect your system...There are only a few ways to return a compromised system to a confident security configuration. These include:

  • Reimaging the system
  • Restoring the entire system using a full system backup from before the backdoor infection
  • Reformatting and reinstalling the system

Backdoors and What They Mean to You

This is what Jesper M. Johansson, Security Program Manager at Microsoft TechNet has to say: Help: I Got Hacked. Now What Do I Do?.

The only way to clean a compromised system is to flatten and rebuild. Thats right. If you have a system that has been completely compromised, the only thing you can do is to flatten the system (reformat the system disk) and rebuild it from scratch (reinstall Windows and your applications).

Because your computer was compromised please read:

Filing a Report:

So basically, while I removed the main backdoor infection from your system, there's no guarantee that your system is still backdoored/compromised. Therefore, the choice to format and reinstall Windows, or keep using your system as is is yours.

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  • 2 weeks later...

Due to the lack of feedback this topic is closed to prevent others from posting here. 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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