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I caught the fake Chrome.exe virus. This sucker is nasty. Any help?


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6 replies to this topic

#1 triggercut

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Posted 12 November 2014 - 06:36 PM

Thanks to having been a longtime reader here at Bleepingcomputer, I think I'm a pretty tech-savvy and malware-smart kind of guy.

 

I normally laugh at virii and malware. I sort of enjoy finding them and removing them. I'm good at it. This one has me stumped.

It looks like a Chrome process, but here's the thing: I completely uninstalled Chrome from my system. Yet, look:

aLhB6OH.png

Now, I know that Chrome runs multiple processes in the system as part of its normal operation. These processes though are tagged as Chrome in the lefthand column, not some crazy random 8-letter thing .exe

Also, that .exe tries to call out multiple times per day. Malwarebytes and Emisoft Antimalware catch it each time. Sometimes it wants an IP address to dial out to, sometimes it's actual domain names to sites that are real, but which I've never visited (like spammy app sites and stuff.)

 

That weird process .exe sits in AppData/LocalLow. It jumps around folders there. It was under Microsoft. I deleted the whole folder. It jumped to Apple.

How the heck do I remove it? I know where this exe is. I've tried manually killing it. If you end the process, it pops back up again like a hydra. If I go to where this file is on my computer--in safe mode--and delete it, it pops back up the next time I start Windows normally.

I've so far run deep scans with MBam, EmiSoft, MBAR (Malwarebytes anti-rootkit beta), and TDSSkiller. No dice.

So. Any thoughts or ideas are appreciated! I'm loathe to just reinstall Windows...not because I don't want to do that, but because I don't want to do that and then find out I didn't fix anything.

 

Thanks in advance for any help and guidance on this!



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#2 Broni

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Posted 12 November 2014 - 07:30 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 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 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"



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 Vista or Windows 7 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 triggercut

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Posted 12 November 2014 - 08:21 PM

I've spend about 16 hours over the last two days running MBAM and MBAR in safe and regular modes. Neither of them is going to get the Browser.exe virus. This seems like a Farbar thing. At any rate....

Scan result of Farbar Recovery Scan Tool (FRST.txt) (x64) Version: 10-11-2014
REDACTED.


Edited by triggercut, 12 November 2014 - 08:39 PM.


#4 triggercut

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Posted 12 November 2014 - 08:26 PM

MiniToolBox by Farbar  Version: 21-07-2014
urity Check and Rkill, will post in a bit.)


Edited by triggercut, 12 November 2014 - 08:40 PM.


#5 Broni

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Posted 12 November 2014 - 08:33 PM

FRST is not allowed in this forum so I asked mods to remove both logs.

 

In any case you're infected with ZeroAccess rootkit and it'll require elevated help.

 

Please follow the instructions in THIS GUIDE starting at Step 6. If you cannot complete a step, skip it and continue.

Once the proper logs are created, then make a NEW TOPIC and post it HERE. Please include a description of your computer issues, what you have done to resolve them, and a link to this topic.

If you can produce at least some of the logs, then please create the new topic and explain what happens when you try to create the log(s) that you couldn't get. If you cannot produce any of the logs, then still post the topic and explain that you followed the Prep. Guide, were unable to create the logs, and describe what happens when you try to create the logs.

It would be helpful if you post a note here once you have completed the steps in the guide and have started your topic in malware removal. Good luck and be patient.

If HelpBot replies to your topic, PLEASE follow Step One so it will report your topic to the team members.


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


 


#6 triggercut

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Posted 12 November 2014 - 10:16 PM

Thanks to your identification of ZeroAccess, working with our own IT guy we've been able to isolate and kill it with RogueKiller and rebuild processes with ESET. Thanks so much for your help!

 

This topic can be considered closed. Thanks again!



#7 Broni

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Posted 12 November 2014 - 10:34 PM

You're very welcome p22002759.gif


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


 





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