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TDSS rootkit infection, google re-direct to z43523673, has now stopped redirecting how do I know if the problem is fixed?


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#1 karenatty

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Posted 06 October 2009 - 04:19 PM

Today I started having problems with Google redirecting me to "z43523673.cn"

I did a search and noticed that users ballchain, bmoc, and molomolo had been having the same difficulty.

After reading the responses to their issue I downloaded:

(1) RootRepeal
(2) Malwarebytes Anti-Malware
(3) System look and
(4) Online Armor free firewall

I also installed a custom hosts file (sc config dnscache start= disabled) through http://mvps.org/winhelp2002/hosts.htm

Now I am not being redirected to "z43523673.cn"

Is the problem fixed? How would I know? I am afraid the TDSS Rootkit problem is still there.

Thanks!

Karen

Edited by The weatherman, 06 October 2009 - 05:22 PM.
Moved from HJT to a more appropriate forum. Tw


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#2 Budapest

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Posted 06 October 2009 - 06:34 PM

Run a quick scan with Malwarebytes and post the log.
The power of accurate observation is commonly called cynicism by those who haven't got it.

—George Bernard Shaw

#3 karenatty

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Posted 07 October 2009 - 10:26 AM

Here is the Malwarebytes scan from this morning:

Malwarebytes' Anti-Malware 1.41
Database version: 2916
Windows 5.1.2600 Service Pack 3

10/7/2009 10:18:19 AM
mbam-log-2009-10-07 (10-18-18).txt

Scan type: Quick Scan
Objects scanned: 96525
Time elapsed: 14 minute(s), 21 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
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:
(No malicious items detected)

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)


The pop up window told me that no malicious items were detected. Still, I am not knowledgeable about computers at all, and I find it hard to believe that I would be able to get rid of this rootkit infection on my own. Could it have hidden itself or gone all trojan on me?

Here is the scan from yesterday that showed an infection:

Malwarebytes' Anti-Malware 1.41
Database version: 2916
Windows 5.1.2600 Service Pack 3

10/6/2009 3:19:32 PM
mbam-log-2009-10-06 (15-19-32).txt

Scan type: Quick Scan
Objects scanned: 96212
Time elapsed: 20 minute(s), 55 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 1
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\FirewallDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)


and the RootRepeal scan from yesterday:

ROOTREPEAL © AD, 2007-2009
==================================================
Scan Start Time: 2009/10/06 14:34
Program Version: Version 1.3.5.0
Windows Version: Windows XP SP3
==================================================

Drivers
-------------------
Name: dump_atapi.sys
Image Path: C:\WINDOWS\System32\Drivers\dump_atapi.sys
Address: 0xED78D000 Size: 98304 File Visible: No Signed: -
Status: -

Name: dump_WMILIB.SYS
Image Path: C:\WINDOWS\System32\Drivers\dump_WMILIB.SYS
Address: 0xF7A90000 Size: 8192 File Visible: No Signed: -
Status: -

Name: rootrepeal.sys
Image Path: C:\WINDOWS\system32\drivers\rootrepeal.sys
Address: 0xBADC8000 Size: 49152 File Visible: No Signed: -
Status: -

Hidden/Locked Files
-------------------
Path: C:\hiberfil.sys
Status: Locked to the Windows API!

Path: C:\WINDOWS\Prefetch\MBAM.EXE-0BEE0439.pf
Status: Visible to the Windows API, but not on disk.

Path: C:\WINDOWS\Prefetch\UPDATE.EXE-261CF2EF.pf
Status: Visible to the Windows API, but not on disk.

Stealth Objects
-------------------
Object: Hidden Module [Name: tdlcmd.dll]
Process: svchost.exe (PID: 768) Address: 0x10000000 Size: 24576

Object: Hidden Module [Name: tdlwsp.dll]
Process: Explorer.EXE (PID: 1056) Address: 0x10000000 Size: 28672

Object: Hidden Module [Name: tdlwsp.dll]
Process: firefox.exe (PID: 2136) Address: 0x007f0000 Size: 28672

==EOF==


Also, I don't know if you need to know this, but I run AVG antivirus software on my computer. It did not catch or stop the rootkit infection.

Thanks for all you help, it is greatly appreciated!

Karen

#4 boopme

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Posted 07 October 2009 - 10:51 AM

Please run these next to be sure.
About the TDDS
A backdoor Trojan can allow an attacker to
gain control of the system, log keystrokes, steal passwords, access personal
data, send malevolent outgoing traffic, and close the security warning
messages displayed by some anti-virus and security programs.

I would advise you to disconnect this PC from the Internet, and then go to
a known clean computer and change any passwords or security information held
on the infected computer. In particular, check whatever relates to online
banking financial transactions, shopping, credit cards, or sensitive
personal information. It is also wise to contact your financial institutions
to apprise them of your situation.


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.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#5 karenatty

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Posted 07 October 2009 - 11:48 AM

I downloaded the ATF Cleaner and SuperAntiSpyware, both downloads only gave me one exe file for each program.

There was no icon for SUPER.

I could not figure out how to open SUPER and only install and update it. If I clicked on SUPER the only options it gave were run and cancel. So I couldn't figure out how to update it or look at scanner options without hitting run.

I did not hit run.

Any ideas what I did wrong?

(If it helps, I use XP not Vista)

Thanks,

Karen

#6 boopme

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Posted 07 October 2009 - 01:13 PM

If SUPERAntiSpyware is already installed but simply will not run, please download and run the following program to launch SUPERAntiSpyware:

RUNSAS.EXE
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#7 karenatty

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Posted 08 October 2009 - 08:47 AM

Here is the log from SUPER:

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

Generated 10/07/2009 at 05:11 PM

Application Version : 4.29.1002

Core Rules Database Version : 4152
Trace Rules Database Version: 2080

Scan type : Complete Scan
Total Scan Time : 03:31:47

Memory items scanned : 226
Memory threats detected : 0
Registry items scanned : 5908
Registry threats detected : 0
File items scanned : 55873
File threats detected : 1

Adware.CouponBar
C:\WINDOWS\SYSTEM32\CPNPRT2.CID


Do you think it okay to run my computer normally (i.e. using personal information) now?

Thanks for all your help!

Karen

#8 boopme

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Posted 08 October 2009 - 12:21 PM

Let me see one more clean log first,Karen.
Rerun MBAM (MalwareBytes) like this:

Open MBAM in normal mode and click Update tab, select Check for Updates,when done
click Scanner tab,select Quick scan and scan (normal mode).
After scan click Remove Selected, Post new scan log and Reboot into normal mode.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#9 karenatty

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Posted 08 October 2009 - 01:37 PM

Here is the log:

Malwarebytes' Anti-Malware 1.41
Database version: 2926
Windows 5.1.2600 Service Pack 3

10/8/2009 1:36:42 PM
mbam-log-2009-10-08 (13-36-42).txt

Scan type: Quick Scan
Objects scanned: 94841
Time elapsed: 8 minute(s), 41 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
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:
(No malicious items detected)

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)

Thank you for all of your help!

Karen

#10 boopme

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Posted 08 October 2009 - 07:32 PM

OK Karen,you look good to go.
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.

Thanks for coming by
boop
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#11 karenatty

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Posted 13 October 2009 - 05:00 PM

Dear Boop,

I followed your steps regarding the system restore point, and my computer had been working great.... until today.... when google again began redirecting me to z43523673.cn again. *sigh*

Malware is saying that it doesn't find anything.

I noticed that Buckeye_Sam recommended that a user (bmoc) use Combofix to solve the issue, but I know better than to run Combofix without the help of an expert.

What do you think my next step should be?

Here is the log for Malware:

Malwarebytes' Anti-Malware 1.41
Database version: 2955
Windows 5.1.2600 Service Pack 3

10/13/2009 4:20:47 PM
mbam-log-2009-10-13 (16-20-47).txt

Scan type: Full Scan (C:\|G:\|J:\|)
Objects scanned: 182483
Time elapsed: 2 hour(s), 3 minute(s), 18 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
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:
(No malicious items detected)

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)

Thanks,

Karen

#12 boopme

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Posted 13 October 2009 - 07:27 PM

Hello Karen,yes this is the problem with a TDDS infection. It may keep resurfacing. So it may be st now for you to run HJT/DDS.
Please follow this guide. go and do steps 6 thru 8 ,, Preparation Guide For Use Before Using Hijackthis. Then go here HijackThis Logs and Virus/Trojan/Spyware/Malware Removal ,click New Topic,give it a relevant Title and post that complete log.

Let me know if it went OK.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#13 karenatty

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Posted 14 October 2009 - 10:09 AM

Dear Boop,

The programs for the logs worked well, and I have posted my new topic. Fingers-crossed that we can find something to get rid of the nasty rootkit infection!

Thanks so much for all your help and advice!

Karen

#14 boopme

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Posted 14 October 2009 - 02:14 PM

You are welcome Karen,it'll be several days before they get to you but they WILL>

Now that your log is properly posted, you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a HJT Team member, nor should you continue to ask for help elsewhere. Doing so can result in system changes which may not show it the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the HJT Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the HJT Team members are very busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the HJT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another HJT Team member is already assisting you and not open the thread to respond.

To avoid confusion, I am closing this topic.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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