Solved PUP.Optional.Delta.A Recreated Each Time Chrome Opens

[Kaisei]

I've ran into some problems with opening the programs as well as the end of adwcleaner. I have attached images of what the errors were. I ran adwcleaner several times. 1st run comes up with an error when I press delete.

I first noticed this on 7/19/2014 when Malwarebytes showed a notification saying that it found something. I tried removing PUP.Optional.Delta.A (Originating in \AppData\Google\Chrome\User Data\Default\Preferences), and a second scan showed the system to be clean. However, upon opening Chrome, Malwarebyte would say that the threat appeared again. Sure enough, the scan proved that the file was back despite the previous quarantine.

 

[TwinHeadedEagle]

Hello,


Before we start please read and note the following:

Limit your internet access to posting here, some infections just wait to steal typed-in passwords.

Don't run any scripts or tools on your own, unsupervised usage may cause more harm than good.

Do not paste the logs in your posts, attachments make my work easier. There is a Upload a File button which you can use to attach your reports. Attach all reports.

Stay with me to the end, the absence of symptoms doesn't mean that your machine is fully operational.

Note that we may live in totally different time zones, what may cause some delays between answers.

Do not ask for help for your business PC. Companies are making revenue via computers, so it is good thing to pay someone to repair it.

I can't foresee everything, so if anything unexpected happens, please stop and inform me!

There are no silly questions. Never be afraid to ask if in doubt!



I need Addition.txt report generated along with FRST.txt.

 

[Kaisei]

Oh no. I deleted it. Is there a way to recreate the file?

 

[TwinHeadedEagle]

Yes, run FRST again, check Additon.txt, press Scan and attach both reports.

 

[Kaisei]

Sorry for the late reply. Here are the two logs.

 

[TwinHeadedEagle]

Fix with Farbar Recovery Scan Tool

This fix was created for this user for use on that particular machine.

Running it on another one may cause damage and render the system unstable.

​

Download attached fixlist.txt file and save it to the Desktop:

Both files, FRST and fixlist.txt have to be in the same location or the fix will not work!

• Right-click on
  
  icon and select
  
  Run as Administrator to start the tool.
  (XP users click run after receipt of Windows Security Warning - Open File).
• Press the Fix button just once and wait.
• If for some reason the tool needs a restart, please make sure you let the system restart normally. After that let the tool complete its run.
• When finished FRST will generate a log on the Desktop, called Fixlog.txt.

Please attach it to your reply.

Scan with ZOEK

Please download ZOEK by Smeenk and save it to your desktop (preferred version is the *.exe one)
Temporary disable your AntiVirus and AntiSpyware protection - instructions here.

• Right-click on
  
  icon and select
  
  Run as Administrator to start the tool.
• Wait patiently until the main console will appear, it may take a minute or two.
• In the main box please paste in the following script:
  

  createsrpoint;
  process;
  services-list;
  installedprogs;
  systemspecs;
  startupall;
  filesrcm;
  firefoxlook;
  chromelook;
  skipfix-iedefaults;

• Make sure that Scan All Users option is checked.
• Push Run Script and wait patiently. The scan may take a couple of minutes.
• When the scan completes, a zoek-results logfile should open in notepad.
• If a reboot is needed, it will be opened after it. You may also find it at your main drive (usually C:\ drive)

Attach report into your next reply.

 

[Kaisei]

Here are the two log files.

 

[TwinHeadedEagle]

Run one more Zoek script

autoclean;
emptyalltemp;
ipconfig /flushdns;b
ipconfig /release;b
ipconfig /renew;b

Attach Zoek-results.log




Let me know how is your PC after this.

 

[Kaisei]

Here it is. Also attached is a snip of what Malwarebytes is finding even after performing all of these scans. I ran Malwarebytes to quarantine the threat. Ran it again to make sure it was removed. Opened Chrome. Then ran Malwarebytes once more to see that the threat came back.

 

[TwinHeadedEagle]

Try this and let me know if it helped


https://support.google.com/chrome/answer/3296214?hl=en

 

[Kaisei]

Unfortunately, it did not. Is there a way to completely uninstall Chrome and other Chrome related items and then reinstalling it? If it helps I am actually on the latest Chrome Beta.

 

[TwinHeadedEagle]

Try this

https://support.google.com/chrome/answer/95319?hl=en

It sometimes help if you remove your synced data.

http://www.chromestory.com/2011/11/how-to-remove-google-chrome/

 

[Kaisei]

Thank you. Removing the synced data seems to have worked, so I did not bother with uninstalling/reinstalling Chrome itself.

 

[TwinHeadedEagle]

Below you will find my thoughts about securing your machine. Go ahead through it, you will benefit from some useful advice about safe computing.

Recommended reading:
​

MUST READ - security tips: Computer Security - a short guide to staying safer online. Simple and easy ways to keep your computer safe and secure on the Internet

MUST READ - general maintenance: What to do if your Computer is running slowly?

Recommended additional software:
​

TFC - to clean unneeded temporary files.

Malwarebytes' Anti-Malware - to scan your system from time to time in search for malware.

Malwarebytes' Anti-Exploit - to prevent plenty of mostly exploited vulnerabilities.

McShield - to prevent infections spread by removable media.

CryptoPrevent - to secure yourself from very severe CryptoLocker infection.

Unchecky - to prevent from installing additional foistware, implemented in legitimate installations.


• The following will implement some post-cleanup procedures:

=> Please download DelFix by Xplode to your Desktop.

Run the tool and check the following boxes below;

Remove disinfection tools

Create registry backup

Purge System Restore
Click Run button and wait a few seconds for the programme completes his work.
At this point all the tools we used here should be gone. Tool will create an report for you (C:\DelFix.txt)

The tool will also record healthy state of registry and make a backup using ERUNT program in %windir%\ERUNT\DelFix
Tool deletes old system restore points and create a fresh system restore point after cleaning.



Stay safe,
TwinHeadedEagle