Yahoo Toolbar Infected with win32:dropper-gen

[REDACTED]

Hi-

So I went through to clean up undesired software and upon trying to uninstall the Yahoo Tool bar on my win-32 XP machine, I received an AVAST message that win32:dropper-gen had been blocked.  It appears that the package was embedded with the Yahoo Messenger client which was recently installed and removed.  I have ran several types of scans (system and root kit) to no avail. To add, I am still unable to remove the Yahoo Toolbar software.  I've searched the forum and those entries I found to be related do not seem to provide a solution that I could follow. It appears AVAST has done it's job to keep the virus at bay but I cannot remove the source. Any assistance would be greatly appreciated.

Thanks!

[Pondus]

Instructions  https://forum.avast.com/index.php?topic=53253.0
Attach Malwarebytes and Farbar Recovery Scan Tool logs ....  3 logs total


See below the box you write in ... Attachments and other options

[REDACTED]

OK, I see where to attachment option is. Either my eyes are getting worse or my eyes are getting worse.
Here are the results from the steps provided. Will attach the 5th file in another response.

[REDACTED]

... and one more.

[essexboy]

Let me know if this clears it

CAUTION :  This fix is only valid for this specific machine, using it on another may break your computer

Open notepad and copy/paste the text in the quotebox below into it:
 

CreateRestorePoint:
URLSearchHook: [S-1-5-21-1645522239-573735546-1177238915-500] ATTENTION => Default URLSearchHook is missing
BHO: No Name -> {02478D38-C3F9-4efb-9B51-7695ECA05670} -> No File
BHO: No Name -> {9030D464-4C02-4ABF-8ECC-5164760863C6} -> No File
R0 mfehidk; C:\WINDOWS\System32\drivers\mfehidk.sys [648552 2015-10-31] (McAfee, Inc.)
S3 mferkdet; C:\WINDOWS\System32\drivers\mferkdet.sys [91840 2015-10-31] (McAfee, Inc.)
S4 mfevtp; C:\WINDOWS\system32\mfevtps.exe [238288 2015-10-31] (McAfee, Inc.)
2015-10-31 20:36 - 2015-10-31 20:36 - 00648552 _____ (McAfee, Inc.) C:\WINDOWS\system32\Drivers\mfehidk.sys
2015-10-31 20:36 - 2015-10-31 20:36 - 00238288 _____ (McAfee, Inc.) C:\WINDOWS\system32\mfevtps.exe
2015-10-31 20:36 - 2015-10-31 20:36 - 00091840 _____ (McAfee, Inc.) C:\WINDOWS\system32\Drivers\mferkdet.sys
2015-10-31 19:47 - 2015-10-31 21:43 - 00000000 ____D C:\Program Files\stinger
Reg: reg delete HKLM\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Local /f
Reg: reg add HKLM\SOFTWARE\Policies\Microsoft\Windows\IPSec\Policy\Local /f
RemoveProxy:
EmptyTemp:
CMD: bitsadmin /reset /allusers

 
Save this as fixlist.txt, in the same location as FRST.exe

Run FRST and press Fix
On completion a log will be generated please post that

[REDACTED]

Hi- Thanks for the script. It ran w/o issue and appears that it worked fine. Here is a copy of the output. Let me know what other actions I should take.

Thanks

[essexboy]

Let me know when you are happy and I will tidy up

[REDACTED]

Things seem to be working and cleaned up.  Thanks!

[essexboy]

Subject to no further problems   

I will remove my tools now and give some recommendations, but, I would like you to run for 24 hours or so and come back if you have any problems 

Now the best part of the day ----- Your log now appears clean  :thumbsup:

A good workman always cleans up after himself so..The following will implement some cleanup procedures as well as reset  System Restore points:

Remove tools

Download and run Delfix
Select the options as shown



: Keep Java Updated :

WARNING: Java is the #1 exploited program at this time. The Department of Homeland Security recommends that computer users disable Java
See this article

I would recommend that you completely uninstall Java unless you need it to run an important software.
In that instance I would recommend that you disable Java in your browsers until you need it for that software and then enable it. (See How to diasble Java in your web browser and How to unplug Java from the browser)

If you do need to keep Java then download JavaRa
Run the programme and select  Remove Java Runtime.  Uninstall all versions of Java present
Once done then run it again and select Update Java runtime > Download and install Latest version



Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:

CryptoPrevent install this programme to lock down and prevent crypto ransome ware



Malwarebytes

Update and run weekly to keep your system clean

Unchecky

Click on the link above to be taken to Unchecky.com
click the very large Download button.
click Save
Click Open folder
Right click on the Unchecky_setup and choose to Run as Administrator
Once open click the Install button.
Then click on Finish
Unchecky is now installed and will help you keep unwanted check boxes unchecked, this is a fire and forget programme 

It is critical to have both a firewall and anti virus to protect your system and to keep them updated.

To learn more about how to protect yourself while on the internet read this little guide  Best security practices Keep safe  :wave:

[REDACTED]

Thanks for the update and good news. I'm also adding those new tools and advice to my tool-box.

Thanks again!

[essexboy]