yahoo email infected? hundreds of error messages in console

[johnny2727]

Hi,

Firstly, thank you for taking the time to help with this

Are you familiar with a malware ad network known as "eu.y.atwola.com" or "s.yimg.com" or "edgecast.vod.yimg.com"? (please see screenshots attached)

I was recently in contact with a developer who sent me some code, but its causing some strange behaviour in my browser, and as soon as I open Yahoo Mail my computer slows down and the fan turns on immediately, then in the console log there are hundreds of error messages about these above ad networks trying to launch. I googled them and it shows they're malware, some sort of browsing tracker to generate ad revenue.

But my Malwarebytes and Kapersky are coming back negative, although people have said this malware manages to get through them.

How do I get this out of my yahoo account, or has my email been compromised now?

I have included some screenshots below

Any help would be very much appreciated

Thanks again

 

 

 

 

Addition.txt FRST.txt malwarebytes 8-5-20.txt

[Maurice Naggar]

Hi,     
My name is Maurice. I will be helping and guiding you, going forward on this case.
Let me know what first name you prefer to go by.

Please follow my directions as we go along.  Please do not do any changes on your own without first checking with me. 
If you will be away for more than 3 consecutive days,  do try to let me know ahead of time, as much as possible. 
  
Please only just attach   all report files, etc  that I ask for as we go along.

.

 

I  would suggest to download, Save, and then run Malwarebytes ADWCLEANER.
Please close Chrome and all other open web browsers after you have saved the Adwcleaner and before you start Adwcleaner scan.
Adwcleaner  detects factory Preinstalled applications too! 

Please download  Malwarebytes AdwCleaner  https://downloads.malwarebytes.com/file/adwcleaner
 
Be sure to Save the file first, to your system.  Saving to the Downloads folder should be the default on your system.

Go to the folder where you saved Adwcleaner. Double click Adwcleaner  to start it.
At the prompt for license agreement, review and then click on I agree.

You will then see a main screen for Adwcleaner. ( if you do not see it right away, minimized the other open windows, so you can see Adwcleaner).
Then click on Dashboard button.
Click the blue button "Scan Now".

allow it a few minutes to finish the Scan.   Let it remove what it finds.
NOTE:  When it comes to the section "
Pre-installed applications

You can skip that.
Please find and send the Adwcleaner "C" clean report.
In Adwcleaner, click the "Reports" button.  Look at the list of reports for the latest date & type "Clean".
Double Click that line & it will open in Notepad.   Save the file to your system and then Attach that with your reply.

That C clean report will be the one with the most recent Date and time at folder  C:\AdwCleaner\Logs
.

Please know I help here as a volunteer.  and that I am not on 24 x 7.
Help on this forum is one to one.   Again, please be sure to ONLY attach report files  with your reply (s)  as we go along.  Do not do a copy / paste into main body.

Thank you,
Sincerely.

[johnny2727]

Hi Maurice,

Thank you very much for your help, I really appreciate it.

I realised what I was seeing in the console might have been the ads that Chrome Adblocker was blocking, and it was creating a lot of error messages as console logs based on that?

Everything is hopefully back to normal now anyway, and computer seems to be alright

Again, thank you very much for your help!

 

[Maurice Naggar]

You are welcome.  I am glad to know things are normal.

Backup is your best friend.  Keep backups of your system on a regular basis to offline storage & keep those safe. https://forums.malwarebytes.com/topic/136226-backup-software/

It is not enough to just have a security program installed. Each pc user needs to practice daily safe computer and internet use.

Best  practices & malware prevention:
Follow best practices when browsing the Internet, especially on opening links coming from untrusted sources.
First rule of internet safety: slow down & think before you "click".
Never click links without first hovering your mouse over the link and seeing if it is going to an odd address ( one that does not fit or is odd looking or has typos).

Free games & free programs are like "candy". We do not accept them from "strangers".

Never open attachments that come with unexpected ( out of the blue ) email no matter how enticing.
Never open attachments from the email itself. Do not double click in the email. Always Save first and then scan with antivirus program.

Pay close attention when installing 3rd-party programs. It is important that you pay attention to the license agreements and installation screens when installing anything off of the Internet. If an installation screen offers you Custom or Advanced installation options, it is a good idea to select these as they will typically disclose what other 3rd party software will also be installed.
Take great care in every stage of the process and every offer screen, and make sure you know what it is you're agreeing to before you click "Next".

Use a Standard user account rather than an administrator-rights account when "surfing" the web.
See more info on Corrine's SecurityGarden Blog http://securitygarden.blogspot.com/p/blog-page_7.html
Dont remove your current login. Just use the new Standard-user-level one for everyday use while on the internet.

 
Do a Windows Update.

Make certain that Automatic Updates is enabled.
https://support.microsoft.com/en-us/help/12373/windows-update-faq

 

Keep your system and programs up to date. Several programs release security updates on a regular basis to patch vulnerabilities. Keeping your software patched up prevents attackers from being able to exploit them to drop malware.

For other added tips, read "10 easy ways to prevent malware infection"

I wish you all the best.