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Trojan.ertfor keeps reappearing


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#1 terrors42

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Posted 30 June 2009 - 12:54 PM

I have been having a problem lately with something malwarebytes calls trojan.ertfor. This trojan gets cleaned of my malwarebyte but after some time it appears again, same infect and in the same locations. This infection can go dormant for a day or only for 2 Hours. Several programs have been tried to remove this thing with no luck. These include: Malwarebytes, Adware, Spybot, vipre, SuperAntispyware, and Avira AntiVire.

My IT guy at work isn't sure if this is a false positive, so I need to determine what is causing this.

the computer in question is runing window XP 64bit. Let me know if you need anymore stats.

Any help is gladly apreciated on this one.

Cheers,

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#2 boopme

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Posted 30 June 2009 - 03:09 PM

Ok, let's do this and see what we get back.
Next run ATF and SAS:

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.


Rerun MBAM like this: OR post the last infected log.

Open MBAM in normal mode and click Update tab, select Check for Updates,when done
click Scanner tab,select Quick scan and scan.
After scan click Remove Selected, Post new scan log and Reboot into normal mode.

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

#3 terrors42

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Posted 01 July 2009 - 08:07 AM

Thanks for the response. Here are the logs you requested.


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

Generated 06/30/2009 at 05:10 PM

Application Version : 4.26.1002

Core Rules Database Version : 3963
Trace Rules Database Version: 1904

Scan type : Complete Scan
Total Scan Time : 01:06:38

Memory items scanned : 222
Memory threats detected : 0
Registry items scanned : 7134
Registry threats detected : 0
File items scanned : 158772
File threats detected : 0


Malwarebytes' Anti-Malware 1.38
Database version: 2358
Windows 5.2.3790 Service Pack 2

7/1/2009 7:56:51 AM
mbam-log-2009-07-01 (07-56-51).txt

Scan type: Quick Scan
Objects scanned: 106210
Time elapsed: 1 minute(s), 4 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 3
Registry Values Infected: 1
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_CLASSES_ROOT\CLSID\{e2ba40a2-74f3-42bd-f434-2604812c8953} (Trojan.Ertfor) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{e2ba40a2-74f3-42bd-f434-2604812c8953} (Trojan.Ertfor) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e2ba40a2-74f3-42bd-f434-2604812c8953} (Trojan.Ertfor) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\{e2ba40a2-74f3-42bd-f434-2604812c8953} (Trojan.Ertfor) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

#4 boopme

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Posted 01 July 2009 - 02:12 PM

Rerun MBAM to see if it comes back all 0's:

Open MBAM in normal mode and click Update tab, select Check for Updates,when done
click Scanner tab,select Quick scan and scan.
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

#5 terrors42

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Posted 01 July 2009 - 03:21 PM

Here is the new scan log. It looks like it cleared everything out, but will see how long that stays that way.



Malwarebytes' Anti-Malware 1.38
Database version: 2360
Windows 5.2.3790 Service Pack 2

7/1/2009 3:14:19 PM
mbam-log-2009-07-01 (15-14-19).txt

Scan type: Quick Scan
Objects scanned: 74446
Time elapsed: 2 minute(s), 48 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)

#6 boopme

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Posted 01 July 2009 - 03:28 PM

Ok it does look good here...
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.
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 terrors42

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Posted 02 July 2009 - 07:44 AM

Good Deal,
I have had system restore off already I thought I cleaned it out, but I made sure to clean it out just incase I forgot. I will keep an eye on this thing and let you know if it comes back.

thanks for the help.

#8 boopme

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Posted 02 July 2009 - 09:49 AM

You should keep it on and empty once in while.. What would you use if you installed something that crashed your PC or if say the malware started to do the same..??
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 terrors42

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Posted 06 July 2009 - 07:31 AM

Bad News It looks like something is back.

Malwarebytes' Anti-Malware 1.38
Database version: 2379
Windows 5.2.3790 Service Pack 2

7/6/2009 7:29:37 AM
mbam-log-2009-07-06 (07-29-37).txt

Scan type: Quick Scan
Objects scanned: 112604
Time elapsed: 3 minute(s), 51 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 2
Registry Values Infected: 1
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_CLASSES_ROOT\CLSID\{e2ba40a2-74f3-42bd-f434-2604812c8953} (Trojan.Ertfor) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{e2ba40a2-74f3-42bd-f434-2604812c8953} (Trojan.Ertfor) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\{e2ba40a2-74f3-42bd-f434-2604812c8953} (Trojan.Ertfor) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)

#10 boopme

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Posted 06 July 2009 - 10:48 AM

Ok rats!! This must protected by a service or driver... I think it best to run HJT/DDS now. So we can find it.
Please follow this guide. go and do steps 6 and 7 ,, 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 ( say.. Trojan.Ertfor comes back ) 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

#11 Orange Blossom

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Posted 08 July 2009 - 11:33 PM

Hello,

Now that you have posted a log here: http://www.bleepingcomputer.com/forums/t/239374/trojanertfor-comes-back/ 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 ask for help elsewhere. Doing so can result in system changes which may not show in 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 EXTREMELY 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. Please be patient. It may take a while to get a response but your log will be reviewed and answered as soon as possible

To avoid confusion, I am closing this topic. Good luck with your log.

Orange Blossom :thumbsup:
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