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Apparently undetectable malware/adware destroying my computer


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Hello,

I really need your help. My computer and some private informations are highly endangered. I downloaded an archive of pictures. Within minutes my browser was hijacked. Nothing worked properly, it slowed down and crashed. Subsequently the AV I use, Kaspersky overwhelmed me with a quantity of malware alarms. I rebooted my computer. ALL of my browsers (Chrome / Firefox / IE) were hijacked. Nothing would work properly, I had tons of redirections to ads, it suggested me stuff, with hypertext links everywhere... etc... I tried to run some softwares only to have crashes and error messages. 

I also had like a browser bar installed that suggested me various websites (amazon, aliexpress, gmail...) and whereas I NEVER store my password, never do auto log in, never do remeber my passwords, all of those websites had MY ACCOUNTS logged in. It somehow retrieved the log in informations ! 

Browsing the web I had more ads than webpages and sometimes it redirected me to pages that I didn't ask for while overwheming me with popups.

Afterwards one pop-up asked me to pay a ransom.

Meanwhile my computer had massively slowed down. It then froze and blue screened. 

I rebooted computer safe mode and without internet.

I ran Malwarebytes and Kaspersky, all analysis I could do. It detected no less than 7 malwares. All removed.

However, after running my computer again I had nearly all the same issues. 

I rebooted computer safe mode... etc ... again. 2 other malwared discovered.

And again same issues, slow computer, something adchanger, cryptothing, and stuff, nothing still would work properly.

I ran Malwarebytes ... etc... again, along with adwcleaner and others I installed via USB. Found NOTHING AT ALL. My computer still suffers from many symptoms of infection. 

 

I really need help. This malware appears to be extremely potent. I have many important informations and datas I don't want to lose and I have no backups. 

 

Thanking you in advance.

 

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Hello Spartan576 and welcome to Malwarebytes,

My screen name is kevinf80, i`m here to help clean up your system. Make sure to run all scans from accounts with Administrator status, continue as follows please:

Anyone other than the original starter of this thread please DO NOT follow the instructions and advice posted as replies here, my help and advice is NOT related to your system and will probably cause more harm than good...

Change the download folder setting in the default Browser so all tools we may use are saved to the Desktop:

user posted imageGoogle Chrome - Click the "Customize and control Google Chrome" button in the upper right-corner of the browser. user posted image
Choose Settings. at the bottom of the screen click the
"Show advanced settings..." link. Scroll down to find the Downloads section and click the Change... button. Select your desktop and click OK.

user posted imageMozilla Firefox - Click the "Open Menu" button in the upper right-corner of the browser. user posted image Choose Options. In the downloads section, click the Browse button, click on the Desktop folder and the click the "Select Folder" button. Click OK to get out of the Options menu.

user posted imageInternet Explorer - Click the Tools menu in the upper right-corner of the browser. user posted image Select View downloads. Select the Options link in the lower left of the window. Click Browse and select the Desktop and then choose the Select Folder button. Click OK to get out of the download options screen and then click Close to get out of the View Downloads screen.
NOTE: IE8 Does not support changing download locations in this manner. You will need to download the tool(s) to the default folder, usually Downloads, then copy them to the desktop.

user posted imageChange default download folder location in Edge -Boot to a user account with admin status, select start > file explorer > right click on "Downloads" folder and select "Properties"

In the new window select "Location" tab > clear the text field box and type in or copy/paste %userprofile%\Desktop > select "Apply" then "OK"

Be aware you are not changing the Browser download folder location, you are changing the user’s download directory location.....

Next,

Follow the instructions in the following link to show hidden files:

http://www.howtogeek.com/howto/windows-vista/show-hidden-files-and-folders-in-windows-vista/

Next,

Download RKill from here: http://www.bleepingcomputer.com/download/rkill/

There are three buttons to choose from with different names on, select the first one and save it to your desktop.
 
  • Double-click on the Rkill desktop icon to run the tool.
  • If using Vista or Windows 7/8/10, right-click on it and Run As Administrator.
  • A black DOS box will briefly flash and then disappear. This is normal and indicates the tool ran successfully.
  • A log pops up at the end of the run. This log file is located at C:\rkill.log. Please post this in your next reply.
  • If you do not see the black box flash on the screen delete the icon from the desktop and go back to the link for the download, select the next button and try to run the tool again, continue to repeat this process using the remaining buttons until the tool runs. You will find further links if you scroll down the page with other names, try them one at a time.
  • If the tool does not run from any of the links provided, please let me know.


Next,

Please open Malwarebytes Anti-Malware.
 
  • On the Settings tab > Detection and Protection sub tab, Detection Options, tick the box "Scan for rootkits".
  • Under Non-Malware Protection sub tab Change PUP and PUM entries to Treat detections as Malware
  • Click on the Scan tab, then click on Scan Now >> . If an update is available, click the Update Now button.
  • A Threat Scan will begin.
  • When the scan is complete, click Apply Actions.
  • Wait for the prompt to restart the computer to appear, then click on Yes.
  • After the restart once you are back at your desktop, open MBAM once more.


To get the log from Malwarebytes do the following:
 
  • 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 > From export you have three options:
    Copy to Clipboard - if seleted right click to your reply and select "Paste" log will be pasted to your reply
    Text file (*.txt) - if selected you will have to name the file and save to a place of choice, recommend "Desktop" then attach to reply
    XML file (*.xml) - if selected you will have to name the file and save to a place of choice, recommend "Desktop" then attach to reply
     
  • Recommend you use "Copy to Clipboard, then Right click to your reply > select "Paste" that will copy the log to your reply…



If Malwarebytes is not installed follow these instructions first:

Download Malwarebytes Anti-Malware to your desktop.
  • Double-click mbam-setup 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. Follow the instructions above....


Next,

Download Farbar Recovery Scan Tool and save it to your desktop.

Note: You need to run the version compatible with your system (32 bit or 64 bit). If you are not sure which version applies to your system download both of them and try to run them. Only one of them will run on your system, that will be the right version.

If your security alerts to FRST either, accept the alert or turn your security off to allow FRST to run. It is not malicious or infected in any way...
 
  • Double-click to run it. When the tool opens click Yes to disclaimer.(Windows 8/10 users will be prompted about Windows SmartScreen protection - click More information and Run.)
  • Make sure Addition.txt is checkmarked under "Optional scans"
  • Press Scan button to run the tool....
  • It will make a log (FRST.txt) in the same directory the tool is run. Please copy and paste it to your reply.
  • The tool will also make a log named (Addition.txt) Please attach that log to your reply.


Let me see those logs in your next reply....

Thank you,

Kevin....
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  • Root Admin

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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Thank you a lot for reopening my thread. 

I came back from holidays and wiped the main HDD completely as many security softwares found nothing. (Personal Datas being on one the secondary HDD which was removed). 

Malware came back in force. It survived again detection and started damaging the computer needing a second and then a third wipe. 

Nothing changes though, computer is infected and crash within hours of each wipe. 

 

 

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You`ve ran the FRST scan from Safe mode, also internet disconnected.... continue,

Download attached fixlist.txt file (end of reply) and save it to the Desktop, or the folder you saved FRST into.
NOTE. It's important that both FRST and fixlist.txt are in the same location or the fix will not work.

Run FRST and press the Fix button just once and wait.
The tool will make a log on the Desktop (Fixlog.txt) or the folder it was ran from. Please post it to your reply.

Next,

Please download RogueKiller and save it to your desktop from the following link: http://www.bleepingcomputer.com/download/roguekiller/
 
  • Quit all running programs.
  • For Windows XP, double-click to start.
  • For Vista,Windows 7/8/8.1/10, Right-click on the program and select Run as Administrator to start and when prompted allow it to run.
  • Read and accept the EULA (End User Licene Agreement)
  • Click Scan to scan the system.
  • When the scan completes select "Report",in the next window select "Export txt" the log will open as a text file post that log... Also save to your Desktop for reference. log will open.
  • Close the program > Don't Fix anything!


Let me see those logs...
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Thank you a lot but it appears emsisoft managed to fix the infection. I update just as a closing (I hope) remark... The morning after my last post, It appears last emsisoft scan i did (I was running a scan with each anti malware at my disposal updated a day) found multiple Trojans (3) on my computer. No issues since.  I'm baffled. (I reseted  internet router to manufacture settings btw in the mean time because I was having internet issues)

How did they exactly get through everything until this day ? Survived wipes ? All the scans should have detected them right ? I must have done something wrong, very wrong. 

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If the clean up was completed after the router was reset then possibly the router was the source of re-infection.. It is good news to hear you`ve finally removed the infection and have a system that is back to normal.

It will be a good move to dump all system restore points and create a fresh clean SR point now, we can do that in clean up.. continue:

Download "Delfix by Xplode" and save it to your desktop.

Or use the following if first link is down:

"Delfix link mirror"

If your security program alerts to Delfix either, accept the alert or turn your security off.

Double Click to start the program. If you are using Vista or higher, please right-click and choose run as administrator

Make Sure the following items are checked:


  •    
  • Remove disinfection tools <----- this will remove tools we have used.
       
  • Purge System Restore <--- this will remove all previous and possibly exploited restore points, a new point relative to system status at present will be created.
       
  • Reset system settings   <--- this will reset any system settings back to default that were changed either by us during cleansing or malware/infection

Now click on "Run" and wait patiently until the tool has completed.

The tool will create a log when it has completed. We don't need you to post this.

Any remnant files/logs from tools we have used can be deleted…

Next,

Read the following links to fully understand PC Security and Best Practices, you may find them useful....

Answers to Common Security Questions and best Practices

Do I need a Registry Cleaner?

Take care and surf safe

Kevin...  busy.gif

 

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  • Root Admin

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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