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Wise to do a full system restore w/ backup?


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#1 HenryHH

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Posted 09 August 2009 - 12:53 AM

So I managed to somehow download the virus that causes Google search results in all browsers to re-direct to clickover.cn, shopica, etc., and after running scan after scan to no avail, I just decided to do a full system restore. However, when I did this (via pressing F11 when booting up the PC), I also chose to have a back-up of the harddrive created in the folder C:/My Backup. Was this a bad idea? Did the virus get backed-up with my other files?

For what it's worth, I haven't experienced the re-direct issue once since performing the system restore...

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#2 HenryHH

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Posted 09 August 2009 - 09:14 AM

UPDATE: I ran a Root Repeal scan yesterday and didn't find anything other than the typical false positives. Is this a pretty sure sign that the original clickover.cn virus is gone? Are there any viruses that could have survived the system restore?

Also, do I need to delete the C:/My Backup file that contains all the files stored on my harddrive prior to the system restore? I just wasn't sure if the virus could have saved itself in there...

Finally, is it safe to log-in to PayPal or other financial websites yet?

#3 boopme

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Posted 09 August 2009 - 10:26 AM

Hello, when you say System Restore .. Did you mean a restore to Factory settings or you set the system back some days..?? Was there a Format involved? Also is this XP, Vista etc...?

Please run MBAM (MalwareBytes):

NOTE: Before saving MBAM please rename it to zztoy.exe....now save it to your desktop.

Please download Malwarebytes Anti-Malware and save it to your desktop.
alternate download link 1
alternate download link 2

MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
MBAM will automatically start and you will be asked to update the program before performing a scan.
  • If an update is found, the program will automatically update itself. Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the definition updates, manually download them from here and just double-click on mbam-rules.exe to install.
On the Scanner tab:
  • Make sure the "Perform Quick Scan" option is selected.
  • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
Back at the main Scanner screen:
  • Click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad.
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  • Exit MBAM when done.
Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.
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#4 HenryHH

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Posted 09 August 2009 - 01:31 PM

Hi and thanks for your assistance. When I was booting up my computer yesterday, I pressed F11 and chose the "advanced" option for full system restore which installs a new copy of Windows XP but saves the contents of the harddrive in a new folder at C:/My Backup.


I have posted the MBAM log below:

------------------------------------

Malwarebytes' Anti-Malware 1.40
Database version: 2586
Windows 5.1.2600 Service Pack 2

8/9/2009 2:25:19 PM
mbam-log-2009-08-09 (14-25-19).txt

Scan type: Quick Scan
Objects scanned: 89251
Time elapsed: 5 minute(s), 34 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 2
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{549b5ca7-4a86-11d7-a4df-000874180bb3} (Trojan.Agent) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{549b5ca7-4a86-11d7-a4df-000874180bb3} (Trojan.Agent) -> Quarantined and deleted successfully.

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)


----------------------------------------------------

Since it says that 2 trojans were found (and removed, of course), I guess this means that one or more viruses survived the reformatting?

Thanks for your help!

#5 boopme

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Posted 09 August 2009 - 04:25 PM

Hello. Sustem restore is not a reformat in XP.

There are some problems associated with System Restore when it comes to viruses. When restore points are created they are stored in a directory that is accessible only to the System account and not to a user. This keeps the restore points safe from misuse and tampering. Unfortunately this also means that any virus scan software you may have installed can not scan the files located there as well. This causes a problem if a file that is infected with a virus gets backed up into a restore point because now the anti-virus software can not clean it. Now if you ever restore from a restore point, that file that is infected will be introduced back into your system.

With this in mind, if you find that you are infected with a virus, hijacker, or spyware and want to make sure you do not get reinfected if you restore a restore point, you should turn System Restore off and then back on again to clear all the restore points. This will guarantee that their are no infected files that could be restored.

Windows XP System Restore Guide

Reformatting a hard disk deletes all data. If you decide to reformat, you can back up all your important documents, data files and photos. The safest practice is not to backup any autorun.ini or .exe files because they may be infected. Some types of malware may disguise itself by adding and hiding its extension to the existing extension of files so be sure you take a close look at the full name. After reformatting, as a precaution, make sure you scan these files with your anti-virus prior to copying them back to your hard drive.

That said what we found here is not so dangerous, I don;t know what you had founfd before. Let's run this nesxt to be sure there is nothing left. Then we will clesn the Restore Points.

Next run ATF and SAS:
Note.. SAS doesn't open the registry hives for other user accounts on the system, so scans should be done from each user account.

Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

From your regular user account..
Download Attribune's ATF Cleaner and then SUPERAntiSpyware , Free Home Version. Save both to desktop ..
DO NOT run yet.
Open SUPER from icon and install and Update it
Under Scanner Options make sure the following are checked (leave all others unchecked):
Close browsers before scanning.
Scan for tracking cookies.
Terminate memory threats before quarantining
.
Click the "Close" button to leave the control center screen and exit the program. DO NOT run yet.

Now reboot into Safe Mode: How to enter safe mode(XP)
Using the F8 Method
Restart your computer.
When the machine first starts again it will generally list some equipment that is installed in your machine, amount of memory, hard drives installed etc. At this point you should gently tap the F8 key repeatedly until you are presented with a Windows XP Advanced Options menu.
Select the option for Safe Mode using the arrow keys.
Then press enter on your keyboard to boot into Safe Mode
.

Double-click ATF-Cleaner.exe to run the program.
Under Main "Select Files to Delete" choose: Select All.
Click the Empty Selected button.

If you use Firefox or Opera browser click that browser at the top and choose: Select All
Click the Empty Selected button.
If you would like to keep your saved passwords, please click No at the prompt.
Click Exit on the Main menu to close the program
.

NOW Scan with SUPER
Open from the desktop icon or the program Files list
On the left, make sure you check C:\Fixed Drive.
Perform a Complete scan. After scan,Verify they are all checked.
Click OK on the summary screen to quarantine all found items.
If asked if you want to reboot, click "Yes" and reboot normally.

To retrieve the removal information after reboot, launch SUPERAntispyware again.
Click Preferences, then click the Statistics/Logs tab.
Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
If there are several logs, click the current dated log and press View log.
A text file will open in your default text editor.
Please copy and paste the Scan Log results in your next reply.
Click Close to exit the program.


Please ask any needed questions,post logs and Let us know how the PC is running now.
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#6 HenryHH

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Posted 10 August 2009 - 09:06 PM

Well, when I first opened SAS in safe mode, the hour glass cursor was displayed for a split second and then changed back to the regular cursor. I double-clicked the SAS icon again and that time, the hour glass cursor was displayed for probably almost 10 seconds but then went back to being a normal cursor. Finally, on the third or fourth attempt at double-clicking the SAS icon, it opened.

Here is the log generated:

SUPERAntiSpyware Scan Log
http://www.superantispyware.com

Generated 08/10/2009 at 06:51 PM

Application Version : 4.27.1002

Core Rules Database Version : 4046
Trace Rules Database Version: 1986

Scan type : Complete Scan
Total Scan Time : 08:40:16

Memory items scanned : 203
Memory threats detected : 0
Registry items scanned : 4543
Registry threats detected : 0
File items scanned : 240934
File threats detected : 19

Adware.Tracking Cookie
C:\Documents and Settings\Owner\Cookies\owner@edge.ru4[2].txt
C:\Documents and Settings\Owner\Cookies\owner@advertising[2].txt
C:\Documents and Settings\Owner\Cookies\owner@ads.cnn[1].txt
C:\Documents and Settings\Owner\Cookies\owner@media6degrees[1].txt
C:\Documents and Settings\Owner\Cookies\owner@tacoda[2].txt
C:\Documents and Settings\Owner\Cookies\owner@adlytics[1].txt
C:\Documents and Settings\Owner\Cookies\owner@apmebf[2].txt
C:\Documents and Settings\Owner\Cookies\owner@fastclick[1].txt
C:\Documents and Settings\Owner\Cookies\owner@at.atwola[1].txt
C:\Documents and Settings\Owner\Cookies\owner@revsci[1].txt
C:\Documents and Settings\Owner\Cookies\owner@atdmt[2].txt
C:\Documents and Settings\Owner\Cookies\owner@adbrite[1].txt
C:\Documents and Settings\Owner\Cookies\owner@html[1].txt
C:\Documents and Settings\Owner\Cookies\owner@trafficmp[1].txt
C:\Documents and Settings\Owner\Cookies\owner@mediaplex[1].txt
C:\Documents and Settings\Owner\Cookies\owner@ads.bleepingcomputer[1].txt
C:\Documents and Settings\Owner\Cookies\owner@atwola[2].txt
C:\Documents and Settings\Owner\Cookies\owner@doubleclick[2].txt
C:\Documents and Settings\Owner\Cookies\owner@ad.yieldmanager[1].txt


I haven't experienced a single clickover.cn or shopica redirection since I did the system restore, but my computer does seem to be running slower than it should be (e.g., sometimes when clicking the Start menu it will freeze for a second and then come up, or items in the Start menu will be slow to highlight when I move the cursor over them, etc.). But so far, I haven't noticed any of the virus symptoms that were occurring prior to performing the system restore.

#7 boopme

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Posted 10 August 2009 - 09:57 PM

Well we look very good. But Rootkits still can be hidden so..
We Need to check for Rootkits with RootRepeal
  • Download RootRepeal from the following location and save it to your desktop.
  • Extract RootRepeal.exe from the archive.
  • Open Posted Image on your desktop.
  • Click the Posted Image tab.
  • Click the Posted Image button.
  • Check all seven boxes: Posted Image
  • Push Ok
  • Check the box for your main system drive (Usually C:), and press Ok.
  • Allow RootRepeal to run a scan of your system. This may take some time.
  • Once the scan completes, push the Posted Image button. Save the log to your desktop, using a distinctive name, such as RootRepeal.txt. Include this report in your next reply, please.

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#8 HenryHH

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Posted 11 August 2009 - 12:34 PM

Here's the Root Repeal log. It seems that there might be something in the backup of my HD created during system restore:


ROOTREPEAL © AD, 2007-2009
==================================================
Scan Start Time: 2009/08/11 10:07
Program Version: Version 1.3.3.0
Windows Version: Windows XP SP2
==================================================

Drivers
-------------------
Name: dump_atapi.sys
Image Path: C:\WINDOWS\System32\Drivers\dump_atapi.sys
Address: 0xF6914000 Size: 98304 File Visible: No Signed: -
Status: -

Name: dump_WMILIB.SYS
Image Path: C:\WINDOWS\System32\Drivers\dump_WMILIB.SYS
Address: 0xF7B75000 Size: 8192 File Visible: No Signed: -
Status: -

Name: rootrepeal.sys
Image Path: C:\WINDOWS\system32\drivers\rootrepeal.sys
Address: 0xF52E2000 Size: 49152 File Visible: No Signed: -
Status: -

Hidden/Locked Files
-------------------
Path: C:\My Backup -- 08-08-09 2026\WINDOWS\assembly\GAC_32\System.EnterpriseServices\2.0.0.0__b03f5f7f11d50a3a
Status: Locked to the Windows API!

Path: C:\My Backup -- 08-08-09 2026\WINDOWS\assembly\GAC_MSIL\IEExecRemote\2.0.0.0__b03f5f7f11d50a3a
Status: Locked to the Windows API!

SSDT
-------------------
#: 031 Function Name: NtConnectPort
Status: Hooked by "<unknown>" at address 0x85dfe0a8

#: 122 Function Name: NtOpenProcess
Status: Hooked by "<unknown>" at address 0x85e5e5c8

#: 128 Function Name: NtOpenThread
Status: Hooked by "<unknown>" at address 0x85d92d80

==EOF==

#9 boopme

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Posted 11 August 2009 - 02:59 PM

Henry you look good here,if there are no signs of infection there then.....
Now you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been backed up, renamed and saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Start > Run and type: Cleanmgr
  • Click "Ok". Disk Cleanup will scan your files for several minutes, then open.
  • Click the "More Options" tab, then click the "Clean up" button under System Restore.
  • Click Ok. You will be prompted with "Are you sure you want to delete all but the most recent restore point?"
  • Click Yes, then click Ok.
  • Click Yes again when prompted with "Are you sure you want to perform these actions?"
  • Disk Cleanup will remove the files and close automatically.
Vista Users can refer to these links: Create a New Restore Point and Disk Cleanup.
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#10 HenryHH

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Posted 11 August 2009 - 03:25 PM

Hey, thanks for your help! I just created the restore point and did the disk cleanup.

So is there no way at all that a virus could still be on my computer if Root Repeal didn't detect it?

Also, there is one other thing. I have noticed this for probably several years, but on just about any webpage, certain words in paragraphs will be blue links. Whenever I move the mouse cursor over them, some sort of little pop-up comes up that says "Bing." Is this just part of the website or does it mean I have some kind of adware on my PC?

#11 boopme

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Posted 11 August 2009 - 03:37 PM

There were no rootkits found in Rootrepeal the viruses were removed with the MBAM and SAS scans..
Are you still having issues?

Edited by boopme, 11 August 2009 - 03:38 PM.

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