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Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: sd522527 on September 23, 2013, 10:42:09 PM

Title: gupdate (SIRESEF) trojan not removed via avast!
Post by: sd522527 on September 23, 2013, 10:42:09 PM
Hi,

I am new to the forum, and apologize if I do not follow every rule. But I am at wit's end with this SIRESEF infection which I cannot seem to get rid of.

The details are thus:


I originally became aware of this infection after avast! alerted me to another (similar) folder, "C:\Users\steve\AppData\Local\Google\Desktop\Install".  I was able to delete that folder in safe mode; the corresponding one in Program Files(x86) cannot be deleted, even in safe mode.

A boot scan by avast! does not find anything untoward. Malwarebytes' RegASSASSIN claims to delete the offending registry keys, but does not.  A Quick Scan by avast! finished with the recommendation to delete the Google Update service.  I clicked OK, but the service was not removed.

All I've been able to do is delete that AppData folder, and change some of the Registry values in the !etadpug key (in particular, the pointer to the Program Files(x86) is now null).  Can anyone tell me how to remove this darn malware? If I need to post a log or anything like that, please let me know.  Also I should mention I am a novice when it comes to advanced techniques (it took me a long while to figure out how to delete that AppData folder), so please be detailed (and patient!) when replying.  I greatly appreciate it.

Thanks,
Steve
Title: Re: gupdate (SIRESEF) trojan not removed via avast!
Post by: essexboy on September 23, 2013, 10:49:46 PM
Hi you will need to run this programme and attach the generated log

Please download Farbar Recovery Scan Tool (http://www.bleepingcomputer.com/download/farbar-recovery-scan-tool/) and save it to your Desktop.
 
Note: You need to run the version compatible with your system. If you are not sure which version applies to your system download both of them and try to run them. Only one of them will run on your system, that will be the right version.
 
Title: Re: gupdate (SIRESEF) trojan not removed via avast!
Post by: sd522527 on September 24, 2013, 01:26:56 AM
OK I've attached those files (too long to paste).

Thanks,
Steve
Title: Re: gupdate (SIRESEF) trojan not removed via avast!
Post by: essexboy on September 24, 2013, 03:35:10 PM
OK lets kill it

Copy all of the text in the Code box to a notepad file
Code: [Select]
HKCU\...\Run: [Google Update*] - [x] <===== ATTENTION (ZeroAccess rootkit hidden path)
U2 *etadpug; "" <==== ATTENTION (ZeroAccess)
C:\Program Files (x86)\Google\Desktop\Install
DeleteJunctionsIndirectory: C:\Program Files\Windows Defender
Save the file to the same location as FRST as Fixlist.txt
Run FRST as before and press fix
A fix log will then be created post that here

THEN

Download OTL (http://oldtimer.geekstogo.com/OTL.exe)  to your Desktop
Secondary link  (http://www.itxassociates.com/OT-Tools/OTL.exe)
(https://dl.dropbox.com/u/73555776/OTL_Main_Tutorial.gif)

netsvcs
BASESERVICES
%SYSTEMDRIVE%\*.exe
/md5start
services.*
explorer.exe
winlogon.exe
Userinit.exe
svchost.exe
/md5stop
dir "%systemdrive%\*" /S /A:L /C
CREATERESTOREPOINT


Title: Re: gupdate (SIRESEF) trojan not removed via avast!
Post by: sd522527 on September 24, 2013, 06:14:12 PM
Thanks so much! I have attached OTL.txt and Extras.txt .  Here is the content of the FRST fix log:

Fix result of Farbar Recovery Tool (FRST written by Farbar) (x64) Version: 24-09-2013
Ran by steve at 2013-09-24 11:46:15 Run:1
Running from C:\Users\steve\Downloads
Boot Mode: Normal
==============================================

Content of fixlist:
*****************
HKCU\...\Run: [Google Update*] -
U2 *etadpug; "" <==== ATTENTION (ZeroAccess)
C:\Program Files (x86)\Google\Desktop\Install
DeleteJunctionsIndirectory: C:\Program Files\Windows Defender
*****************

HKCU\Software\Microsoft\Windows\CurrentVersion\Run\\Google Update* => Value deleted successfully.
*etadpug => Service deleted successfully.
C:\Program Files (x86)\Google\Desktop\Install => Moved successfully.
"C:\Program Files\Windows Defender" => Deleting reparse point and unlocking started.
"C:\Program Files\Windows Defender\en-US" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender\MpAsDesc.dll" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender\MpClient.dll" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender\MpCmdRun.exe" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender\MpCommu.dll" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender\MpEvMsg.dll" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender\MpOAV.dll" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender\MpRTP.dll" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender\MpSvc.dll" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender\MSASCui.exe" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender\MsMpCom.dll" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender\MsMpLics.dll" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender\MsMpRes.dll" => Deleting reparse point and unlocking done.
"C:\Program Files\Windows Defender" => Deleting reparse point and unlocking completed.

==== End of Fixlog ====
Title: Re: gupdate (SIRESEF) trojan not removed via avast!
Post by: essexboy on September 24, 2013, 07:04:50 PM
You may need to re-install windows defender...  OK repair and final check time.  Can you confirm the alerts have ceased

Download and Install Combofix
 
Download ComboFix from one of the following locations:
Link 1  (http://download.bleepingcomputer.com/sUBs/ComboFix.exe)
Link 2 (http://www.forospyware.com/sUBs/ComboFix.exe)
 
VERY IMPORTANT !!! Save ComboFix.exe to your Desktop
 
* 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  (http://forums.whatthetech.com/How_Disable_your_Security_Programs_t96260.html&pid=494216#entry494216)
(http://img.photobucket.com/albums/v706/ried7/NSIS_disclaimer_ENG.png)

(http://img.photobucket.com/albums/v706/ried7/NSIS_extraction.png)

Notes:
1. Do not mouse-click Combofix's window while it is running. That may cause it to stall.
2. Do not "re-run" Combofix. If you have a problem, reply back for further instructions.
3.  If after the reboot you get errors about programmes being marked for deletion then reboot, that will cure it.


Please make sure you include the combo fix log in your next reply as well as describe how your computer is running now
Title: Re: gupdate (SIRESEF) trojan not removed via avast!
Post by: sd522527 on September 24, 2013, 08:36:36 PM
I think this did the trick!  My computer is running fine.  The malicious Google Update service no longer appears in services.msc; the Program Files(x86) folder has been removed; and the suspicious registry keys for etadpug are gone.  Thanks so much once again!

The ComboFix.txt log is attached.
Title: Re: gupdate (SIRESEF) trojan not removed via avast!
Post by: essexboy on September 24, 2013, 08:38:48 PM
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 ComboFixRun OTL and hit the cleanup button.  It will remove all the programmes we have used plus itself. 

Clear Restore Points

Go Start > All Programmes > Accessories > System tools
Right click Disc Cleanup and select run as administrator
When it pops up at the first prompt select OK after it has done some calculations the tabs will appear
Select More Options tab
Press Sytem Restore and Shadow Copies Cleanup button

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

Malwarebytes (http://www.malwarebytes.org/mbam-download.php).

Update and run weekly to keep your system clean

Download and install FileHippo update checker (http://www.filehippo.com/updatechecker/) and run it monthly it will show you which programmes on your system need updating and give a download link

If you use on-line banking then as an added layer of protection install Trusteer Rapport  (http://www.trusteer.com/Products/Trusteer-Rapport-for-Online-Banking)

It is critical to have both a firewall and anti virus to protect your system and to keep them updated. To keep your operating system up to date visit To learn more about how to protect yourself while on the internet read our little guide  How did I get infected in the first place ? (http://www.geekstogo.com/forum/topic/225044-preventing-malware-and-safe-computing/)Keep safe  :wave: