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B.exe Trojan Remnant


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11 replies to this topic

#1 DasVedanya

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Posted 10 September 2009 - 09:19 PM

So I got the "b.exe" trojan last night. Luckily I stopped it prematurely before it went into c.exe stage. I've destroyed the a.exe, b.exe, and c.exe files, and permanently deleted them. I still have the Trojan Crypts in the Recycle Bin and I am in the process of removing them with AVG8. My computer however is still being sluggish, but barely noticeable. The first startup today bore the b.exe file in the Processes on the Task Manager, but after scanning with AVG, and restarting, it no longer shows up, and my computer, as stated above is now sluggish, but barely noticeable. Windows Explorer and Task Manager seem to running fine now, but I still suspect that a trace of the infection might be lingering on my system. I have not run DDS or HijackThis because I do not want to somehow damage my system, as that's what I heard HijackThis can do without supervision. I am running Windows Vista Home Premium 64-bit on an HP HDX-16t.

Please help me find out if this virus is still lounging around on my hard drive or not, and please provide help with DDS and HJT.

Thanks in advance. :thumbsup:
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#2 boopme

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Posted 10 September 2009 - 09:27 PM

Hello and welcome please run these next. If you have Spybot installed temporarily disable it.
Next run ATF:
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

Please download ATF Cleaner by Atribune & save it to your desktop.
  • 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 browser click Firefox 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.
  • If you use Opera browser click Opera 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.

Next 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

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.
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 DasVedanya

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Posted 10 September 2009 - 09:36 PM

I am trying what you're saying right now, I will post later if it works. Thanks so much for the help and the fast reply. :thumbsup:
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#4 boopme

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Posted 10 September 2009 - 09:40 PM

Welcome i'll be here a bit, watching football.
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 DasVedanya

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Posted 10 September 2009 - 09:46 PM

Steelers game eh? I'm watching it at the same time too. Back to work for me though.


EDIT: Log here

Malwarebytes' Anti-Malware 1.41
Database version: 2775
Windows 6.0.6001 Service Pack 1

9/10/2009 8:07:05 PM
mbam-log-2009-09-10 (20-07-05).txt

Scan type: Quick Scan
Objects scanned: 93356
Time elapsed: 13 minute(s), 21 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 5
Registry Values Infected: 1
Registry Data Items Infected: 1
Folders Infected: 2
Files Infected: 4

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CURRENT_USER\SOFTWARE\NordBull (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\PlayAllDVD (Trojan.DNSChanger) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\XML (Trojan.FakeAlert) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\PlayAllDVD (Trojan.DNSChanger) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\poprock (Trojan.Downloader) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poprock (Trojan.Downloader) -> Quarantined and deleted successfully.

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoActiveDesktopChanges (Hijack.DisplayProperties) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.

Folders Infected:
C:\Program Files (x86)\PlayAllDVD (Trojan.DNSChanger) -> Quarantined and deleted successfully.
C:\Users\Sherman\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\PlayAllDVD (Trojan.DNSChanger) -> Quarantined and deleted successfully.

Files Infected:
C:\Program Files (x86)\Uninstall.exe (Trojan.DNSChanger) -> Quarantined and deleted successfully.
C:\Program Files (x86)\PlayAllDVD\Uninstall.exe (Trojan.DNSChanger) -> Quarantined and deleted successfully.
C:\Users\Sherman\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\PlayAllDVD\Uninstall.lnk (Trojan.DNSChanger) -> Quarantined and deleted successfully.
C:\Windows\Tasks\{BB65B0FB-5712-401b-B616-E69AC55E2757}.job (Trojan.Downloader) -> Quarantined and deleted successfully.

Edited by DasVedanya, 10 September 2009 - 10:08 PM.

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#6 boopme

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Posted 10 September 2009 - 10:43 PM

Ok that went well. I think if we do these now you'll be in good shape.

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.


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.


Please ask any needed questions,post 2 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

#7 DasVedanya

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Posted 10 September 2009 - 10:52 PM

And I will do that tomorrow if you don't mind. I have to finish this paper and I'll get back on here after school is out. Thanks.
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#8 boopme

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Posted 10 September 2009 - 10:57 PM

No problemo... I'll look tomorrow.
Good night.
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 DasVedanya

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Posted 12 September 2009 - 06:32 PM

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

Generated 09/12/2009 at 03:21 PM

Application Version : 4.28.1010

Core Rules Database Version : 4096
Trace Rules Database Version: 2036

Scan type : Complete Scan
Total Scan Time : 06:13:19

Memory items scanned : 610
Memory threats detected : 0
Registry items scanned : 8730
Registry threats detected : 0
File items scanned : 143139
File threats detected : 1

Adware.Tracking Cookie
C:\Users\Sherman\AppData\Roaming\Microsoft\Windows\Cookies\sherman@atdmt[1].txt



And here is MBAM:

Malwarebytes' Anti-Malware 1.41
Database version: 2787
Windows 6.0.6001 Service Pack 1

9/12/2009 4:29:28 PM
mbam-log-2009-09-12 (16-29-28).txt

Scan type: Quick Scan
Objects scanned: 93791
Time elapsed: 9 minute(s), 51 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)



Success I think! Thanks for all of your help! I'll back up all of my files onto an external just in case.
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#10 boopme

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Posted 12 September 2009 - 07:48 PM

Looks much better,how is it running?
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 DasVedanya

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Posted 13 September 2009 - 10:00 AM

Better than normal, but crapola. AVG just detected that svchost.exe has been trojan'd.

File Name: C:\Windows\System32\cngaudit.dll

Threat Name: Trojan Horse Generic14.ARMC (Detected on open.)

This popped up as I was putting my files onto my drive. Guess the threat isn't all gone.
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#12 boopme

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Posted 13 September 2009 - 01:39 PM

You shoud scan them before you put them back or put them and rerun the scans (MBAM and SAS). Post the new logs.
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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