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Have b.exe, don't know where to post for help


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#1 jumpinjaco

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Posted 14 September 2009 - 09:12 AM

Hello all,

I believe I have recently been infected by b.exe. I am running Windows XP. I don't know where to go exactly to have my questions answered, so I thought I would post here.

When my system started running very slowly, I opened my Task Manager. I saw b.exe running and taking up a lot of power. I googled it, saw taht it was a Trojan and stopped it in the Task Manager. When I started doing searches on how to remove it in Firefox, I would only get ad sites and other sites that were definitely not the sites I was supposed to go to (firefox would get redirected to another site). I then tried running Spybot S&D, but it quit that and now it won't work. I've been browsing and browsing to find a definite answer to my problem, but I've gotten a little confused with all the varying answers. I'm also afraid that I might have doomed myself by deleting it in Task Manager. I restarted in Safe Mode and found that there is a file called B.EXE-2F383D1B.pf under C:\WINDOWS\Prefetch. b.exe is also not in my temp folder as it seems to reside with most people, so I'm not sure where to look.

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#2 boopme

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Posted 14 September 2009 - 03:14 PM

Lets see if e=we can get these logs..

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.


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.

Please ask any needed questions,post 2 logs and Let us know how the PC is running now.
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#3 jumpinjaco

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Posted 14 September 2009 - 09:42 PM

Ok, to start off somebody tried to fix this while I was waiting for a reply. They went into safe mode and found everything they could related to b.exe using the command line and deleted it. It seems to have solved the problem for the most part, but things still seem a little fishy to me.

Therefore, I tried following your directions. I installed ATF Cleaner and SUPERAntiSpyware, did the Scanner Options under SAS, and then ran them in Safe Mode. ATF worked fine, but then SAS did the same thing that Spybot S&D did (an error message that says "Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item." when I try to open them). The person suggested that I try using AVG Free to do what SAS was supposed to. I tried it, and here is the log it came up with.

AVG 8.5 Anti-Virus command line scanner
Copyright © 1992 - 2009 AVG Technologies
Program version 8.0.401, engine 8.0.408
Virus Database: Version 270.13.98/2371 2009-09-14

C:\Program Files\SUPERAntiSpyware\SUPERAntiSpyware.exe Locked file. Not tested.
C:\Documents and Settings\All Users\Application Data\Microsoft\Dr Watson\user.dmp Locked file. Not tested.
C:\Documents and Settings\J.B. Sloan\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat Locked file. Not tested.
C:\Documents and Settings\J.B. Sloan\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat.LOG Locked file. Not tested.
C:\Documents and Settings\J.B. Sloan\NTUSER.DAT Locked file. Not tested.
C:\Documents and Settings\J.B. Sloan\ntuser.dat.LOG Locked file. Not tested.
C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat Locked file. Not tested.
C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat.LOG Locked file. Not tested.
C:\Documents and Settings\NetworkService\NTUSER.DAT Locked file. Not tested.
C:\Documents and Settings\NetworkService\ntuser.dat.LOG Locked file. Not tested.
C:\pagefile.sys Locked file. Not tested.
C:\Program Files\SUPERAntiSpyware\SUPERAntiSpyware.exe Locked file. Not tested.
C:\System Volume Information\ Locked file. Not tested.
C:\WINDOWS\$hf_mig$\KB902400\KB902400\ Locked file. Not tested.

------------------------------------------------------------
Objects scanned : 352809
Found infections : 0
Found PUPs : 0
Healed infections : 0
Healed PUPs : 0
Warnings : 0
------------------------------------------------------------

After doing this, I tried using the MBAM as you recommended. When I tried to scan, it started scanning, the window disappeared, and when I tried opening it back up, it got the same error message that SAS and Spybot S&D got. So this seems like either something got deleted that shouldn't have been, or I am still infected in some way. Anyway, I hope this gives a better idea of what's going on.

Also, I have had problems restarting some. Sometimes, after I log in, I get a white screen and a window pops up about enabling hotkeys for hibernation and standby. This does not happen every time, but sometimes. I always click cancel. I am then left with only a white screen and only have access to the Task Manager.

Thanks for all your help.

#4 boopme

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Posted 14 September 2009 - 10:05 PM

You need to Take ownership and then run SAS and MBAM.
How to take ownership of a file or a folder in Windows XP

Goes like this

Right Click on your desktop folder and click properties.

Take ownership of the folder and give yourself full permissions to it.

Right click on it select Properties
Click Security Tab >> Advanced >> Owner Tab >> Edit
Click on Administrators then OK > OK > OK > OK > YES
Now Right Click on the file again, Properties > Security Tab, click on EDIT > click on Administrators, Full Control: Allow > OK > 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

#5 jumpinjaco

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Posted 15 September 2009 - 02:45 AM

Ok, I did that for both of them. I then went into Safe Mode and ran both ATF and SAS again. ATF worked fine, and SAS was doing the scan just fine, but then part of the way through it closed automatically and came up with the same error message as before. I checked to make sure that I was the owner still. None of that had changed. I then uninstalled it in normal XP and then re-installed it. Now it won't even open. Same error message, but I still have ownership with full permission. It seems as if something really doesn't want me to use this. Thanks for being patient with me.

#6 boopme

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Posted 15 September 2009 - 08:04 AM

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 jumpinjaco

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Posted 15 September 2009 - 05:05 PM

Ok, that got it to run, but now it keeps stopping part of the way through. After scanning about 5000 registry items, 221 memory items but no file items, the window just closes again without a summary or a log to be found. Now I'm able to start over just fine. Sometimes I have to use RUNSAS and sometimes I don't. I'm not sure what file it's stopping on in the registry, though. It closes too fast.

#8 jumpinjaco

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Posted 24 September 2009 - 09:53 PM

Um, I'm really not sure what to do now. Does this mean I should reformat?

#9 boopme

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Posted 25 September 2009 - 10:11 AM

Can you get Malwarebytes to run from the earlier post. If not you will have to try to get an HJT log and clean this that way. Or else yes a reformat.
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

#10 jumpinjaco

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Posted 02 October 2009 - 01:00 PM

Malwarebytes still won't run. What do I do once I've downloaded and installed HJT?

#11 boopme

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Posted 02 October 2009 - 02:09 PM

Please follow this guide. 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




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