Backdoor bots and a winlogon.exe virus

[BloodCaramel]

My father's computer is currently infected by backdoor bot viruses, especially suspicious about the winlogon.exe(which could be a virus itself instead of the system file judging by my memory of going through google searches about it some months ago), possibly the same that infected this computer last year.

Another problem I faced in this computer is the window box saying "16 bit MS-DOA Subsystem NTVDM CPU illegal instruction". I couldnt screenshot/physically photograph it nor rewrite what I saw as the start menu wouldn't function when the window appeared as well as other things not functioning(like being unable to use opened programs and unable to even open folders and files) and right now as I'm typing this, it has yet to occurr so I don't know what triggered it.

The OS for this computer is an XP Professional Ver 2002 Service Pack 3. I'm currently using internet explorer as the computer doesnt have chrome and the firefox browser will not run.

MBAM-log-2013-08-19 (13-12-35).txt

[MrCharlie]

Welcome to the forum, please start HERE

Post back the 2 logs here.....DDS.txt and Attach.txt

(please don't put logs in code or quotes)

P2P/Piracy Warning:

1. If you're using Peer 2 Peer software such uTorrent, BitTorrent or similar you must either fully uninstall it or completely disable it from running while being assisted here.

Failure to remove or disable such software will result in your topic being closed and no further assistance being provided.

2. If you have illegal/cracked software, cracks, keygens etc. on the system, please remove or uninstall them now and read the policy on Piracy.

Failure to remove such software will result in your topic being closed and no further assistance being provided.

<====><====><====><====><====><====><====><====>

Next................

Please download and run RogueKiller 32 bit to your desktop.

RogueKiller<---use this one for 64 bit systems

Quit all running programs.

For Windows XP, double-click to start.

For Vista or Windows 7-8, do a right-click on the program, select Run as Administrator to start, & when prompted Allow to run.

Click Scan to scan the system.

When the scan completes > Close out the program > Don't Fix anything!

Don't run any other options, they're not all bad!!!!!!!

Post back the report which should be located on your desktop.

(please don't put logs in code or quotes)

MrC

Note:

Please read all of my instructions completely including these.

Make sure you're subscribed to this topic: Click on the Follow This Topic Button (at the top right of this page), make sure that the Receive notification box is checked and that it is set to Instantly

Removing malware can be unpredictable...unlikely but things can go very wrong! Backup any files that cannot be replaced. You can copy them to a CD/DVD, external drive or a pen drive

<+>Please don't run any other scans, download, install or uninstall any programs while I'm working with you.

<+>The removal of malware isn't instantaneous, please be patient.

<+>When we are done, I'll give to instructions on how to cleanup all the tools and logs

<+>Please stick with me until I give you the "all clear" and Please don't waste my time by leaving before that.

------->Your topic will be closed if you haven't replied within 3 days!<--------

(If I don't respond within 24 hours, please send me a PM)

[BloodCaramel]

There's a problem using the ddr/dds file working on the computer. I downloaded the dds.com one and everytime I run it the computer kept giving me a blue screen.

[BloodCaramel]

Nevermind about the problem. Apparently the computer's antivirus caused the blue screen even though I thought I disabled some active guards that would've blocked the program when running(there's no disable option so I had to disable all the guards manually).

attach.txt

dds.txt

[MrCharlie]

I need you to run RogueKiller and post the log.....MrC

[BloodCaramel]

Roguekiller not working. A window popped up saying "not valid Win32 application".

[MrCharlie]

Download Malwarebytes Anti-Rootkit from HERE

• Unzip the contents to a folder in a convenient location.
• Open the folder where the contents were unzipped and run mbar.exe
• Follow the instructions in the wizard to update and allow the program to scan your computer for threats.
• Click on the Cleanup button to remove any threats and reboot if prompted to do so.
• Wait while the system shuts down and the cleanup process is performed.
• Perform another scan with Malwarebytes Anti-Rootkit to verify that no threats remain. If they do, then click Cleanup once more and repeat the process.
• When done, please post the two logs produced they will be in the MBAR folder..... mbar-log.txt and system-log.txt

To attach a log if needed:

Bottom right corner of this page.

New window that comes up.

~~~~~~~~~~~~~~~~~~~~~~~

Note:

If no additional threats were found, verify that your system is now running normally, making sure that the following items are functional:

Internet access

Windows Update

Windows Firewall

If there are additional problems with your system, such as any of those listed above or other system issues, then run the fixdamage tool included with Malwarebytes Anti-Rootkit and reboot. It's located in the Plugins folder which is in the MBAR folder.

Just run fixdamage.exe.

Verify that they are now functioning normally.

MrC

[BloodCaramel]

Automatic update wont allow me to do any selections, not even through the security center. Do I risk using the fix damage tool?

system-log.txt

mbar-log-2013-08-20 (04-39-46).txt

mbar-log-2013-08-20 (06-10-57).txt

[MrCharlie]

Yes, that's what it's for....

 

Next:

 

Please download and run ComboFix.

 

The most important things to remember when running it is to disable all your malware programs and run Combofix from your desktop.

 

Please visit this webpage for download links, and instructions for running ComboFix

 

http://www.bleepingcomputer.com/combofix/how-to-use-combofix

 

Ensure you have disabled all anti virus and anti malware programs so they do not interfere with the running of ComboFix.

 

Information on disabling your malware programs can be found Here.

 

Make sure you run ComboFix from your desktop.  

 

Give it at least 30-45 minutes to finish if needed.

 

Please include the C:\ComboFix.txt in your next reply for further review.

 

---------->NOTE<----------

If you get the message Illegal operation attempted on registry key that has been marked for deletion after you run ComboFix....please reboot the computer, this should resolve the problem. You may have to do this several times if needed.

 

MrC

 

 

 

[BloodCaramel]

The automatic updates still doesn't allow me to do any selection. I did go to the windows update site however(a lot of things to download that my father neglected to). Do I continue on with the combofix first or the windows updates?

[MrCharlie]

Forget about the updates until we're done.

Run ComboFix for now. MrC

[BloodCaramel]

Can't fully access the link to the combofix instructions. Everytime I try, even after restarting, IE freezes it after some time loading it, it's the only page that freezes while other pages(like this forum) still function.

[MrCharlie]

This should be the direct download.

http://www.bleepingcomputer.com/download/combofix/dl/12/

Just download it to your desktop, disable all your malware programs and run it.

Post back the log. MrC

[MrCharlie]

I zipped it up and attached it if needed...MrC

[BloodCaramel]

Here's the log

ComboFix.txt

[MrCharlie]

Looks Good.....

Open up Malwarebytes > Settings Tab > Scanner Settings > Under action for PUP > Select Show in Results List and Check for removal.

Please Update and run a Quick Scan with Malwarebytes Anti-Malware, post the report.

Make sure that everything is checked, and click Remove Selected.

Please let me know how computer is running now, MrC

[BloodCaramel]

Found nothing. What about full scan?

mbam-log-2013-08-20 (14-57-34).txt

[MrCharlie]

OK...go ahead and run a full scan....MrC

[BloodCaramel]

The log came out clean.

mbam-log-2013-08-20 (17-17-04).txt

[MrCharlie]

Good...lets check for any adware while you're here:

Please download AdwCleaner by Xplode and save to your Desktop.

• Double click on AdwCleaner.exe to run the tool.

  Vista/Windows 7/8 users right-click and select Run As Administrator

• Click on the Scan button.
• AdwCleaner will begin...be patient as the scan may take some time to complete.
• After the scan has finished, click on the Report button...a logfile (AdwCleaner[R0].txt) will open in Notepad for review.
• The contents of the log file may be confusing. Unless you see a program name that you know should not be removed, don't worry about it. If you see an entry you want to keep, let me know about it.
• Copy and paste the contents of that logfile in your next reply.
• A copy of all logfiles are saved in the C:\AdwCleaner folder which was created when running the tool.

MrC

[BloodCaramel]

You said "Copy and paste the contents of that logfile in your next reply." so,

# AdwCleaner v3.000 - Report created 21/08/2013 at 05:10:53

# Updated 20/08/2013 by Xplode

# Operating System : Microsoft Windows XP Service Pack 3 (32 bits)

# Username : user - HANGT

# Running from : C:\Documents and Settings\user\Desktop\AdwCleaner.exe

# Option : Scan

***** [ Services ] *****

***** [ Files / Folders ] *****

Folder Found : C:\Documents and Settings\user\Application Data\Mozilla\Firefox\Profiles\k0z8w3e2.default\Extensions\m3ffxtbr@mywebsearch.com

Folder Found C:\Documents and Settings\user\Application Data\utilitychest_49

Folder Found C:\Program Files\utilitychest_49

***** [ Shortcuts ] *****

***** [ Registry ] *****

***** [ Browsers ] *****

-\\ Internet Explorer v6.0.2900.5512

-\\ Mozilla Firefox v22.0 (en-US)

[ File : C:\Documents and Settings\user\Application Data\Mozilla\Firefox\Profiles\k0z8w3e2.default\prefs.js ]

Line Found : user_pref("dom.ipc.plugins.enabled.npmywebs.dll", false);

Line Found : user_pref("extensions.enabledAddons", "m3ffxtbr%40mywebsearch.com:1.2,%7Bb9bfaf1c-a63f-47cd-8b9a-29526ced9060%7D:1.6.5,%7B972ce4c6-7e08-4474-a285-3208198ce6fd%7D:22.0");

Line Found : user_pref("extensions.installCache", "[{\"name\":\"winreg-app-global\",\"addons\":{\"{20a82645-c095-46ed-80e3-08825760534b}\":{\"descriptor\":\"C:\\\\WINDOWS\\\\Microsoft.NET\\\\Framework\\\\v3.5\\\\W[...]

*************************

AdwCleaner[R0].txt - [1687 octets] - [21/08/2013 04:45:29]

AdwCleaner[R1].txt - [1607 octets] - [21/08/2013 05:10:53]

########## EOF - C:\AdwCleaner\AdwCleaner[R1].txt - [1667 octets] ##########

[MrCharlie]

OK...Next:

Double click on AdwCleaner.exe to run the tool again.

• Click on the Scan button.
• AdwCleaner will begin to scan your computer like it did before.
• After the scan has finished...
• This time click on the Clean button.
• Press OK when asked to close all programs and follow the onscreen prompts.
• Press OK again to allow AdwCleaner to restart the computer and complete the removal process.
• After rebooting, a logfile report (AdwCleaner[s0].txt) will open automatically.
• Copy and paste the contents of that logfile in your next reply.
• A copy of that logfile will also be saved in the C:\AdwCleaner folder.

MrC

[BloodCaramel]

# AdwCleaner v3.000 - Report created 21/08/2013 at 08:21:21

# Updated 20/08/2013 by Xplode

# Operating System : Microsoft Windows XP Service Pack 3 (32 bits)

# Username : user - HANGT

# Running from : C:\Documents and Settings\user\Desktop\AdwCleaner.exe

# Option : Clean

***** [ Services ] *****

***** [ Files / Folders ] *****

Folder Deleted : C:\Program Files\utilitychest_49

Folder Deleted : C:\Documents and Settings\user\Application Data\utilitychest_49

Folder Deleted : C:\Documents and Settings\user\Application Data\Mozilla\Firefox\Profiles\k0z8w3e2.default\Extensions\m3ffxtbr@mywebsearch.com

***** [ Shortcuts ] *****

***** [ Registry ] *****

***** [ Browsers ] *****

-\\ Internet Explorer v6.0.2900.5512

-\\ Mozilla Firefox v22.0 (en-US)

[ File : C:\Documents and Settings\user\Application Data\Mozilla\Firefox\Profiles\k0z8w3e2.default\prefs.js ]

Line Deleted : user_pref("dom.ipc.plugins.enabled.npmywebs.dll", false);

Line Deleted : user_pref("extensions.enabledAddons", "m3ffxtbr%40mywebsearch.com:1.2,%7Bb9bfaf1c-a63f-47cd-8b9a-29526ced9060%7D:1.6.5,%7B972ce4c6-7e08-4474-a285-3208198ce6fd%7D:22.0");

Line Deleted : user_pref("extensions.installCache", "[{\"name\":\"winreg-app-global\",\"addons\":{\"{20a82645-c095-46ed-80e3-08825760534b}\":{\"descriptor\":\"C:\\\\WINDOWS\\\\Microsoft.NET\\\\Framework\\\\v3.5\\\\W[...]

*************************

AdwCleaner[R0].txt - [1687 octets] - [21/08/2013 04:45:29]

AdwCleaner[R1].txt - [1747 octets] - [21/08/2013 05:10:53]

AdwCleaner[R2].txt - [1807 octets] - [21/08/2013 08:20:21]

AdwCleaner[s0].txt - [1746 octets] - [21/08/2013 08:21:21]

########## EOF - C:\AdwCleaner\AdwCleaner[s0].txt - [1806 octets] ##########

[MrCharlie]

Lets check your computers security before you go and we have a little cleanup to do also:

Download Security Check by screen317 from HERE or HERE.

• Save it to your Desktop.
• Double click SecurityCheck.exe and follow the onscreen instructions inside of the black box.
• If you get Unsupported operating system. Aborting now, just reboot and try again.
• A Notepad document should open automatically called checkup.txt.
• Please Post the contents of that document.
• Do Not Attach It!!!

MrC

[BloodCaramel]

Results of screen317's Security Check version 0.99.72

Windows XP Service Pack 3 x86

Internet Explorer 6 Out of date!

``````````````Antivirus/Firewall Check:``````````````

Windows Firewall Enabled!

Kaspersky Anti-Virus

Antivirus up to date! (On Access scanning disabled!)

`````````Anti-malware/Other Utilities Check:`````````

Malwarebytes Anti-Malware version 1.75.0.1300

Java 6 Update 3

Java version out of Date!

Adobe Flash Player 9 Flash Player out of Date!

Adobe Flash Player 11.7.700.224

Adobe Reader 9 Adobe Reader out of Date!

Mozilla Firefox (Firefox.)

Mozilla Thunderbird (2.0.0 Thunderbird out of Date!

````````Process Check: objlist.exe by Laurent````````

Malwarebytes Anti-Malware mbamservice.exe

Malwarebytes Anti-Malware mbamgui.exe

Trend Micro OfficeScan Client pccntmon.exe

IObit IObit Malware Fighter IMFsrv.exe

IObit IObit Malware Fighter IMF.exe

Malwarebytes' Anti-Malware mbamscheduler.exe

Trend Micro OfficeScan Client ntrtscan.exe

Trend Micro OfficeScan Client tmlisten.exe

Trend Micro OfficeScan Client OfcPfwSvc.exe

`````````````````System Health check`````````````````

Total Fragmentation on Drive C:: 7%

````````````````````End of Log``````````````````````