Please help remove: Win32-Sirefef-AHF & Win64-Sirefef-A

Viruses and worms
1

Avast is continually detecting the malware below on my computer. Per instructions I have run Malwarebytes but it will not remove same but the log is attached. Please see attached “OTL” file for my computer and the log from aswMRB as instructed. Thank you in advance for your help.

Avast! File System Shield has blocked a treat:
Object: C:\Windows\Installer\…\80000000.@
Infection: Win64-Sirefef-A [Trj]
Process: C:\windows\system32\services.exe

Avast! File System Shield has blocked a treat:
Object: C:\Windows\Installer\…\80000000.@
Infection: Win32:Malware-gen
Process: C:\windows\system32\services.exe

Avast! File System Shield has blocked a treat:
Object: C:\Windows\Installer\…\000000cb.@
Infection: Win32:Malware-gen
Process: C:\windows\system32\services.exe

Avast! File System Shield has blocked a treat:
Object: C:\Windows\Installer\…\80000032.@
Infection: Win32-Sirefef-AHF [Trj]
Process: C:\windows\system32\services.exe

2

follow this guide: http://forum.avast.com/index.php?topic=53253.0

attach all logs here…

3

@ekremeier
Monitoring your logs 8)

4

Download TDSSKiller and save it to your desktop

Execute [b]TDSSKiller.exe[/b] by doubleclicking on it.

[*] Press Start Scan

[*] If Suspicious object is detected, the default action will be Skip, click on Continue.
[*] If Malicious objects are found, select Cure.

Once complete, a log will be produced at the root drive which is typically C:\ ,for example, [b]C:\TDSSKiller.<version_date_time>log.txt[/b]

Please post the contents of that log in your next reply.

Download ComboFix from here and save it to your Desktop.
If you are unsure how ComboFix works please read this guide carefully.
note: ComboFix must be downloaded to your Desktop.

Temporarily disable your AntiVirus program.
If you are unsure how to do this please read this or this Instruction.

How to disable avast:

[*]Right-click on the avast! icon in the lower right corner of the screen and choose Open Avast! User Interface.
[*]In the window that opens on the top right corner, click Settings.
[*]In a new window that opens, choose the option Troubleshooting, Uncheck Enable avast! self-defense, and click OK.

[*]Right-click on the avast! icon in the lower right corner of the screen and select avast! shield controls .
[*]In the menu that appears, choose Disable Permanently. When you are prompted to turn off security, click Yes.

Note: Do not forget to turn on this option after the cleaning.

Run ComboFix. Click on I Agree!
ComboFix will check if there is a newer version of ComboFix available.
Click Yes if prompted to download.
ComboFix will display DISCLAIMER OF WARRANTY ON SOFTWARE.
Click Yes to allow ComboFix to continue.
If Recovery Console is not installed, ComboFix will offer download & installation.
Click Yes to allow ComboFix to install Recovery Console.
Note:Do not mouse-click Combofix’s window while it is running.
If you see a message like “Illegal operation attempted on a registry key that has been marked for deletion” just restart computer once more.

When the tool is finished, it will produce a log report for you. (typical location: C:[b]ComboFix.txt[/b] )
Attach log reports ( ComboFix.txt) back to topic.

5

tdssKiller and Combofix logs attached per your request. Thanks again for you very valuable help. tdssKiller may have fixed the problem.

6

Step1

Open notepad and copy/paste the text present inside the code box below:



Registry::
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\URLSearchHooks]
"{00000000-6E41-4FD3-8538-502F5495E5FC}"=-
"{f78bf7a8-cf12-4de7-a6da-c463d1b539a7}"=-
[-HKEY_CLASSES_ROOT\clsid\{00000000-6e41-4fd3-8538-502f5495e5fc}]
[-HKEY_CLASSES_ROOT\clsid\{f78bf7a8-cf12-4de7-a6da-c463d1b539a7}]
[-HKEY_CLASSES_ROOT\FreeCauseURLSearchHook.FCToolbarURLSearchHook.1]
[-HKEY_CLASSES_ROOT\TypeLib\{C766F9AD-E91E-43DE-91DC-D007680ED4AF}]
[-HKEY_CLASSES_ROOT\FreeCauseURLSearchHook.FCToolbarURLSearchHook]
[-HKEY_LOCAL_MACHINE\~\Browser Helper Objects\{BFE4B5CB-63F7-4A51-9266-6167655D5B4F}]
[-HKEY_LOCAL_MACHINE\~\Browser Helper Objects\{D4027C7F-154A-4066-A1AD-4243D8127440}]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Toolbar]
"{D4027C7F-154A-4066-A1AD-4243D8127440}"=-
"{C80BDEB2-8735-44C6-BD55-A1CCD555667A}"=-
[-HKEY_CLASSES_ROOT\clsid\{d4027c7f-154a-4066-a1ad-4243d8127440}]
[-HKEY_CLASSES_ROOT\GenericAskToolbar.ToolbarWnd.1]
[-HKEY_CLASSES_ROOT\TypeLib\{2996F0E7-292B-4CAE-893F-47B8B1C05B56}]
[-HKEY_CLASSES_ROOT\GenericAskToolbar.ToolbarWnd]
[-HKEY_CLASSES_ROOT\clsid\{c80bdeb2-8735-44c6-bd55-a1ccd555667a}]
[-HKEY_CLASSES_ROOT\FCTB000060231.IEToolbar.1]
[-HKEY_CLASSES_ROOT\TypeLib\{CCBDEEA9-517A-4862-B0A1-862AE9532228}]
[-HKEY_CLASSES_ROOT\FCTB000060231.IEToolbar]
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\Webbrowser]
"{D4027C7F-154A-4066-A1AD-4243D8127440}"=-
[-HKEY_CLASSES_ROOT\clsid\{d4027c7f-154a-4066-a1ad-4243d8127440}]
[-HKEY_CLASSES_ROOT\GenericAskToolbar.ToolbarWnd.1]
[-HKEY_CLASSES_ROOT\TypeLib\{2996F0E7-292B-4CAE-893F-47B8B1C05B56}]
[-HKEY_CLASSES_ROOT\GenericAskToolbar.ToolbarWnd]

RegLock::
[HKEY_LOCAL_MACHINE\system\ControlSet001\Control\Class\{4D36E96D-E325-11CE-BFC1-08002BE10318}\0000\AllUserSettings]
@Denied: (A) (Users)
@Denied: (A) (Everyone)
@Allowed: (B 1 2 3 4 5) (S-1-5-20)
"BlindDial"=dword:00000000

Folder::
c:\program files\Ask.com
c:\program files\Dogpile Bundle Toolbar

Save this as CFScript.txt

http://img.photobucket.com/albums/v666/sUBs/CFScriptB-4.gif

Close all browser windows and refering to the picture above.

Referring to the screenshot above, drag CFScript.txt into ComboFix.exe.
ComboFix will will re-run. When finished, it will produce a log for you.
Attach the contents of the log in your next reply. (typical location: C:[b]ComboFix.txt[/b] )

Step2

Download DDS and save it to your Desktop from here:
http://download.bleepingcomputer.com/sUBs/dds.scr

Double click dds to run the tool.

* When done, DDS will open two (2) logs:
    1. DDS.txt
    2. Attach.txt

Save both reports to your desktop. DDS.txt and Attach.txt attach back to topic.

7

Logs attached per your request. THANKS AGAIN FOR YOUR HELP. ;D

8

It is necessary to uninstall the ComboFix :

[*] Click Start (or
http://amf.mycity.rs/pg/images/VistaStartButton.png
) then Run.

On Windows7 or Vista you may use Start Search field if Run is not available.

[*] In the line of text type in (Copy) the following:

ComboFix /Uninstall

Note that there is a space between " ComboFix " and " /Uninstall " .

[*] then click OK (or press Enter ).

Wait for the uninstall process is complete.

Please download Farbar Service Scanner (FSS) and run it on the computer with the issue.

[*] Make sure that all options are checked.
[*] Press “Scan”.
[] It will create a log (FSS.txt) in the same directory the tool is run.
[] Please attach FSS.txt log to your reply.

How is your computer running now?

9

See attached FSS.txt log per your request. Computer is running great!!! :smiley: :smiley: :smiley: :smiley:

10

Download this file to Desktop
https://www.dropbox.com/s/jsxffkwvti5e9k6/BITS%20Vista.reg?m

Duble click to run file. On pop-up click on Yes/ok. Reboot your computer.

Re-run OTL and click on CleanUp! button.

You will be asked to reboot the machine to finish the cleanup process, choose Yes.
After the reboot all the tools we used should be gone.
Note: Some more recently created tools may not yet be removed by OTL. Feel free to manually delete any tools it leaves behind.

Thats it.

11

I also had those annoying pop-ups of this malware. After carefully examiniing the processes with ProcessExplorer, I found the malware was using Windows’ svchost.exe to launch itself from C:\RECYCLER.… . So I killed that particular process and then with the help of the Unlocker tool, I deleted the infected folder in the RECYCLER folder.
I think this worked for me.

I also ran ComboFix just to make sure if it’s really clear. It turned out that it found a strange driver file named “tmrkb.sys”! http://j.mp/PSfPop

12

Yes, but you also do not follow my instructions.
Combofix should have been uninstalled.He also shuld did some post cleaning.
Also, malware can not be started from the RECYCLER folder but this is supposed to be empty by the side of ComboFix and OTL.

Attach here C:\Combofix.txt

Now delete all used tools as above instructed. If we will use thouse tools, it will be fresh one.

Step1

Download fresh OTL and click on RunScan
Attach here OTL.txt sad Extras.txt

Step2

Download TDSSKiller and save it to your desktop

Execute [b]TDSSKiller.exe[/b] by doubleclicking on it.

[*] Press Start Scan

[*] If Suspicious object is detected, the default action will be Skip, click on Continue.
[*] If Malicious objects are found, select Cure.

Once complete, a log will be produced at the root drive which is typically C:\ ,for example, [b]C:\TDSSKiller.<version_date_time>log.txt[/b]

Please post the contents of that log in your next reply.