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pls help a noob! PC infected..possibly router too..? :(


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3 replies to this topic

#1 archie_finch

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Posted 22 December 2016 - 01:18 PM

Hello All,

 

I am new to this forum and this is my first post. I found out about bleepingcomputer.com while googling for a solution for malware infection. Really hoping that u guys can give me some good advice since I have no clue what's going on.. I will try to be as detailed as possible:

 

I am running 64 bit, windows 10 Home edition. For a few days I have noticed that, at times, my internet speed gets quite low for some of my activities. I have seen considerable reduction in speed while browsing the internet as well as during streaming videos. Sometimes, during browsing, I would get messages like webpage not available, only to to refresh it and find that im able to access the webpage. 

 

I recently changed my router to Belkin 600 DB N+ Router. Previously I had been using a TP-Link TL-WR841N router. While setting up the new Belkin router, I accidentally kept the guest connection open (should have paid more attention). And couple of days later i started having internet connection issues. 

 

Upon realizing that i kept the guest account open, I quickly added password to it and also changed the password on the other network connections as well (3 in total). I even changed the password for the the belkin web interface. But even then the problems persisted :( .. Every now and then, either I get disconnected from the network or even if I am connected, i get the "No Internet" indication on windows 10 wifi. On occasions I have noticed that random numbers were appended to the name of my network. 

 

But the most terrible thing happened today. I kept getting very low speeds (~1.5 Mbps). I called the ISP and they informed me that everything seemed ok on their end. I downloaded Malwarebytes, disconnected from the internet and ran a "Threat Scan". MWB was able to detect 24 PUPs and 1 Malware. Deleted them all and restarted my PC. I then connected to my network normally and still found that i was getting quite low speeds. After about 10 mins or so, my router light turned red and there was no net connection!

 

So i disconnected the router and connected my old router (TP-Link) back. And I am getting good speeds again. So I am thinking my Belkin router might have been affected by the malware? I have read that malwares can creep back into PCs even after they are removed. In that case, I am afraid that my TP-Link router might also get infected? I am really not sure what to do. I have read that ComboFix maybe a last resort, butthat it should not be used unless its really required to. 

 

I am really not sure what to do and how to disinfect my pc (and router). I am really hoping someone can point me in the right direction and give me a step by step process that I can follow to get my pc and router back to pre-infection state. 

 

I even read that hackers can hack into PCs and router and can use the hacked PCs/routers as "bots". In case my PC/router has been compromised, is there any way I can get my system back?

 

Any help would be much appreciated! TIA! -Archie 
 



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#2 Broni

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Posted 22 December 2016 - 11:08 PM

Welcome aboard p22002758.gif

 

p22002970.gif Download Security Check from here or here and save it to your Desktop.

  • Double-click SecurityCheck.exe
  • Follow the onscreen instructions inside of the black box.
  • A Notepad document should open automatically called checkup.txt; please post the contents of that document.


NOTE 1. If one of your security applications (e.g., third-party firewall) requests permission to allow DIG.EXE access the Internet, allow it to do so.
NOTE 2. SecurityCheck may produce some false warning(s), so leave the results reading to me.
NOTE 3. If you receive UNSUPPORTED OPERATING SYSTEM! ABORTED! message restart computer and Security Check should run

p22002970.gif Please download Farbar Service Scanner (FSS) and run it on the computer with the issue.
  • Make sure the following options are checked:
    • Internet Services
    • Windows Firewall
    • System Restore
    • Security Center/Action Center
    • Windows Update
    • Windows Defender
    • Other Services
  • Press "Scan".
  • It will create a log (FSS.txt) in the same directory the tool is run.
  • Please copy and paste the log to your reply.


p22002970.gif Please download MiniToolBox and run it.

Checkmark following boxes:
  • Report IE Proxy Settings
  • Report FF Proxy Settings
  • List content of Hosts
  • List IP configuration
  • List Winsock Entries
  • List last 10 Event Viewer log
  • List Installed Programs
  • List Devices (do NOT change any settings here)
  • List Users, Partitions and Memory size
  • List Restore Points

Click Go and post the result.

p22002970.gif Please download Malwarebytes Anti-Malware (MBAM) to your desktop.
NOTE. If you already have MBAM 2.0 installed scroll down.

  • Double-click mb3-setup-1878.1878-3.5.1.2522.exe and follow the prompts to install the program.
  • At the end, be sure a checkmark is placed next to the following:

    • Launch Malwarebytes Anti-Malware
    • A 14 day trial of the Premium features is pre-selected. You may deselect this if you wish, and it will not diminish the scanning and removal capabilities of the program.

  • Click Finish.
  • On the Dashboard, click the 'Update Now >>' link
  • After the update completes, click the 'Scan Now >>' button.
  • Or, on the Dashboard, click the Scan Now >> button.
  • If an update is available, click the Update Now button.
  • A Threat Scan will begin.
  • When the scan is complete, if there have been detections, click Apply Actions to allow MBAM to clean what was detected.
  • In most cases, a restart will be required.
  • Wait for the prompt to restart the computer to appear, then click on Yes.



If you already have MBAM 2.0 installed:

  • On the Dashboard, click the 'Update Now >>' link
  • After the update completes, click the 'Scan Now >>' button.
  • Or, on the Dashboard, click the Scan Now >> button.
  • If an update is available, click the Update Now button.
  • A Threat Scan will begin.
  • When the scan is complete, if there have been detections, click Apply Actions to allow MBAM to clean what was detected.
  • In most cases, a restart will be required.
  • Wait for the prompt to restart the computer to appear, then click on Yes.


How to get logs:
(Export log to save as txt)


  • After the restart once you are back at your desktop, open MBAM once more.
  • Click on the History tab > Application Logs.
  • Double click on the Scan Log which shows the Date and time of the scan just performed.
  • Click 'Export'.
  • Click 'Text file (*.txt)'
  • In the Save File dialog box which appears, click on Desktop.
  • In the File name: box type a name for your scan log.
  • A message box named 'File Saved' should appear stating "Your file has been successfully exported".
  • Click Ok
  • Attach that saved log to your next reply.



(Copy to clipboard for pasting into forum replies or tickets)

  • After the restart once you are back at your desktop, open MBAM once more.
  • Click on the History tab > Application Logs.
  • Double click on the Scan Log which shows the Date and time of the scan just performed.
  • Click 'Copy to Clipboard'
  • Paste the contents of the clipboard into your reply.


p22002970.gifDownload 51a5f31352b88-icon_MBAR.pngMalwarebytes Anti-Rootkit (MBAR) to your desktop.
  • Warning! Malwarebytes Anti-Rootkit needs to be run from an account with administrator rights.
  • Double click on downloaded file. OK self extracting prompt.
  • MBAR will start. Click "Next" to continue.
  • Click in the following screen "Update" to obtain the latest malware definitions.
  • Once the update is complete select "Next" and click "Scan".
  • When the scan is finished and no malware has been found select "Exit".
  • If malware was detected, make sure to check all the items and click "Cleanup". Reboot your computer.
  • Open the MBAR folder located on your Desktop and paste the content of the following files in your next reply:
  • "mbar-log-{date} (xx-xx-xx).txt"
  • "system-log.txt"


NOTE. If you see This version requires you to completely exit the Anti Malware application message right click on the Malwarebytes Anti-Malware icon in the system tray and click on Exit.

p22002970.gif Please download Rkill (courtesy of BleepingComputer.com) to your desktop.
There are 2 different versions. If one of them won't run then download and try to run the other one.
You only need to get one of these to run, not all of them. You may get warnings from your antivirus about this tool, ignore them or shutdown your antivirus.

rKill.exe: http://www.bleepingcomputer.com/download/rkill/dl/10/
iExplore.exe (renamed rKill.exe): http://www.bleepingcomputer.com/download/rkill/dl/11/

  • Double-click on the Rkill desktop icon to run the tool.
  • If using Windows Vista, 7 or 8 right-click on it and choose Run As Administrator.
  • A black DOS box will briefly flash and then disappear. This is normal and indicates the tool ran successfully.
  • If not, delete the file, then download and use the one provided in Link 2.
  • Do not reboot until instructed.
  • If the tool does not run from any of the links provided, please let me know.


If normal mode still doesn't work, run the tool from safe mode.

When the scan is done Notepad will open with rKill log.
Post it in your next reply.

NOTE. rKill.txt log will also be present on your desktop.

NOTE Do NOT wrap your logs in "quote" or "code" brackets.
Do NOT use spoilers.
Do NOT edit your reply to post additional logs. Create new reply. I'll not get any email notifications about edits so I won't know you posted something new.


My Website

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My help doesn't cost a penny, but if you'd like to consider a donation, click p22001735.gif


 


#3 shadow_647

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Posted 22 December 2016 - 11:38 PM

Opus double post glitch sorry about that.


Edited by shadow_647, 22 December 2016 - 11:42 PM.


#4 shadow_647

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Posted 22 December 2016 - 11:41 PM

My self i would just flash your routers frimware that will clean out the probelm if any is in thier, once done log in and use a big password.

Dissable loging in by wifi too and only use WEP2 for your connection.

 

 

Defcon 18 - How to Hack Millions of Routers






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