Virus/trojan Probs..

Viruses and worms
1

Hi first time post although been using and recommending Avast for years.

My wife decided to download a torrent video with codec pack without asking first and guess what the codec pack has did ::slight_smile:

Have did quick and full system scan as well as boot time scan which has put a few files to chest but the problem is still there - Avast throwing up threat detected messages regularly particularly from C:\Windows\Installer\ and the process Services.exe ( Win7 64bit and Avast Free Edition ).

What do i need to get rid of this?

2

Please attach your logs. (AdwCleaner, MBAM, OTL and aswMBR…!!)
Instructions: http://forum.avast.com/index.php?topic=53253.0

3

Okay here are the Logs requested ( attached )… I never clicked Fix or anything else on these just ran the scans exactly as described in the link.

4
I never clicked Fix or anything else on these just ran the scans exactly as described in the link.
if you run exactely as described....then you did fix some stuff with adwCleaner and malwarebytes.....as you should do :)

anyway it seems you have zeroAccess rootkit that need som other tool to be removed :-
the removal expert will fix this when he arrive here later today :wink:

5

Hi,

Download Combofix from the link below, and save it to your desktop.
Link

Note: It is important that it is saved directly to your desktop
If you get a message saying “Illegal operation attempted on a registry key that has been marked for deletion”, please restart your computer.

IMPORTANT - Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. If you have difficulty properly disabling your protective programs, refer to this link here

Right-Click and Run as Administrator on ComboFix.exe & follow the prompts.
When finished, it will produce a report for you.
[*]Please post the C:\ComboFix.txt for further review.

6

I ran ComboFix and at the end it did say “Illegal operation attempted on a registry key that has been marked for deletion” as mentioned, i didn`t click OK or anything just restarted. After restart i ran the scan again just to be sure and have attached the log file…

[edit] It still said Avast was active even after disabling module and shields but assuming it scanned ok anyway…

7
it did say "Illegal operation attempted on a registry key that has been marked for deletion" as mentioned, i didn`t click OK or anything just restarted.
Good job...that was what I would have had you do. Let me look this over and I will return as quickly as I can.
8

Go ahead and run a new scan with ComboFix and post the fresh log. :slight_smile:

9

Steaming-hot fresh log attached!

I`ve not had a single warning from Avast since doing all of the above so should i consider it gone?

10

Looks much better…when you ran OTL there should have been a log created named Extras.txt Could you post that please?

If you don’t have it…

Please open OTL.

[*]Make sure all other windows are closed and to let it run uninterrupted.
[*]When the window appears, click the None button near the top (it may looked greyed out)
[*]In the Extra Registry section change it to All
[*]Click the Run Scan button. Do not change any settings unless otherwise told to do so. The scan wont take long.

When the scan completes, it will open 2 notepad windows, OTL.Txt and Extra.txt. Please post the Extra.txt.

11

OTL Extras.txt attached.

Thanks again.

12

Hi,

I see that your Java software is out of date. Please go to Start >> Control Panel >> Programs and Features >> uninstall all versions of Java.

Now download and install the newest version from here >> http://java.com/en/download/index.jsp

Clear Java Cache

See this page for instructions on how to clear java’s cache.

Go into the Control Panel and double-click the Java Icon. (looks like a coffee cup)
[*]Under Temporary Internet Files, click the Delete Files button.[*]There are three options in the window to clear the cache - Leave ALL 3 Checked
Downloaded Applets
Downloaded Applications
Other Files[*]Click OK on Delete Temporary Files Window
Note: This deletes ALL the Downloaded Applications and Applets from the CACHE.[*]Click OK to leave the Java Control Panel.

Malwarebytes

Please open Malwarebytes, update it and then run a Quick Scan. Save the log that is created for your next reply.

ESET Online Scanner

Go here to run an online scannner from ESET. Windows Vista/Windows 7 users will need to right click on their Internet Explorer shortcut, and select Run as Administrator
[*]Note: For browsers other than Internet Explorer, you will be prompted to download and install esetsmartinstaller_enu.exe. Click on the link and save the file to a convenient location. Double click on it to install and a new window will open. Follow the prompts.[*] Turn off the real time scanner of any existing antivirus program while performing the online scan[*]Tick the box next to YES, I accept the Terms of Use.[*]Click Start[*]When asked, allow the activex control to install[*]Click Start[*]Make sure that the option Remove found threats is unticked and the Scan Archives option is ticked.[*]Click on Advanced Settings, ensure the options Scan for potentially unwanted applications, Scan for potentially unsafe applications, and Enable Anti-Stealth Technology are ticked.[*]Click Scan[]Wait for the scan to finish[]When the scan is done, if it shows a screen that says “Threats found!”, then click “List of found threats”, and then click “Export to text file…”[] Save that text file on your desktop. Attach the contents of that log as a reply to this topic.[]Close the ESET online scan, and let me know how things are now.

13

Updated MalwareBytes scan attached…

ESET scan found zero infection :slight_smile:

14

Good…how is your system running?

15

It`s running absolutely fine now thanks Jeffce ( and others ) no warnings coming from Avast either so looking good ;D

16

:slight_smile:

Providing there are no other malware related problems…

IT APPEARS THAT YOUR LOGS ARE NOW CLEAN :smiley: SO LETS DO A COUPLE OF THINGS TO WRAP THIS UP!! :smiley:

This infection appears to have been cleaned, but I can not give you any absolute guarantees. As a precaution, I would go ahead and change all of your passwords as this is especially important after an infection.

The following will implement some cleanup procedures as well as reset System Restore points:

Press the Windows key + R and this will open the Run text box. Copy/paste the following text into the Run box as shown and click OK.
Combofix /Uninstall
(Note: There is a space between the …X and the /U that needs to be there.)

http://i1224.photobucket.com/albums/ee380/jeffce74/CF.jpg

Clean up with OTL:

[*]Right-click and Run as Administrator OTL.exe to start the program.
[*]Close all other programs apart from OTL as this step will require a reboot
[*]On the OTL main screen, press the CLEANUP button
[*]Say Yes to the prompt and then allow the program to reboot your computer.

Any of the logs that you created for use in the forums or remaining tools that have not yet been removed can be deleted so they aren’t cluttering up your desktop. If you did not have Malwarebytes Antimalware before, I would keep it and run it weekly.

Here are some tips to reduce the potential for spyware infection in the future:

1. Make your Internet Explorer more secure - This can be done by following these simple instructions:

[*]From within Internet Explorer click on the Tools menu and then click on Options.
[*]Click once on the Security tab
[*]Click once on the Internet icon so it becomes highlighted.
[*]Click once on the Custom Level button.
[*]Change the Download signed ActiveX controls to Prompt
[*]Change the Download unsigned ActiveX controls to Disable
[*]Change the Initialize and script ActiveX controls not marked as safe to Disable
[*]Change the Installation of desktop items to Prompt
[*]Change the Launching programs and files in an IFRAME to Prompt
[*]Change the Navigate sub-frames across different domains to Prompt
[*]When all these settings have been made, click on the OK button.
[*]If it prompts you as to whether or not you want to save the settings, press the Yes button.
[*]Next press the Apply button and then the OK to exit the Internet Properties page.

2. FireFox If you use Firefox, I recommend installing the following add-ons to help make your Firefox browser more secure:
NoScript
AdBlock Plus

3. Use and update an anti-virus software - I can not overemphasize the need for you to use and update your anti-virus application on a regular basis. With the ever increasing number of new variants of malware arriving on the scene daily, you become very susceptible to an attack without updated protection.

4. Firewall
Using a third-party firewall will allow you to give/deny access for applications that want to go online. Without a firewall your computer is susceptible to being hacked and taken over. Simply using a firewall in its default configuration can lower your risk greatly. **There are firewalls that could be downloaded and used but I would personally only recommend using one of the following two below:
Online Armor Free
Agnitum Outpost Firewall Free

5. Make sure you keep your Windows OS current. Windows XP users can visit Windows update regularly to download and install any critical updates and service packs. Windows Vista/7 users can open the Start menu > All Programs > Windows Update > Check for Updates (in left hand task pane) to update these systems. Without these you are leaving the back door open.

6. WOT (Web of Trust) As “Googling” is such an integral part of internet life, this free browser add on warns you about risky websites that try to scam visitors, deliver malware or send spam. It is especially helpful when browsing or searching in unfamiliar territory. WOT’s color-coded icons show you ratings for 21 million websites, helping you avoid the dangerous sites. WOT has an add-on available for Firefox, Internet Explorer as well as Google Chrome.

7. Finally, I strongly recommend that you read Miekiemoes’ great advice How to prevent malware.

Please reply to this thread once more if you are satisfied so that we can mark the problem as resolved.