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System.exe process


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#1 destroy_all_dells

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Posted 26 April 2010 - 11:28 PM

Hey Guys,

I'm trying to kill a possible trojan process called system.exe. After googling the little bugger, I'm pretty sure that it is some sort of malware. Unfortunately, it seems that it is well established in my system and deleting the files in the typical paths and searching for related registry entries seems to not have availed me.

The system.exe process did show its face until about six months ago when my computer was plagued with several trojans. My registry was so messed up that the necessary processes to run microsoft update did not run. After downloading SUPERAntiSpiware and AVG, I was able to banish these demons. Please let me know what I can do to kill system.exe.

Thanks,
Albert

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#2 boopme

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Posted 26 April 2010 - 11:34 PM

hello, I won't be able to look back till tomorrow as I have to leave now. But run these.

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):

Please download Malwarebytes Anti-Malware (v1.45) and save it to your desktop.alternate download link 1
alternate download link 2
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.
Now an Online scan... ESET
Please perform a scan with Eset Online Antiivirus Scanner.
(Requires Internet Explorer to work. If given the option, choose "Quarantine" instead of delete.)
Vista users need to run Internet Explorer as Administrator. Right-click on the IE icon in the Start Menu or Quick Launch Bar on the Taskbar and select Run as Administrator from the context menu.
  • Click the green ESET Online Scanner button.
  • Read the End User License Agreement and check the box: YES, I accept the Terms of Use.
  • Click on the Start button next to it.
  • You may receive an alert on the address bar that "This site might require the following ActiveX control...Click here to install...". Click on that alert and then click Insall ActiveX component.
  • A new window will appear asking "Do you want to install this software?"".
  • Answer Yes to download and install the ActiveX controls that allows the scan to run.
  • Click Start.
  • Check Remove found threats and Scan potentially unwanted applications.
  • Click Scan to start. (please be patient as the scan could take some time to complete)
  • If offered the option to get information or buy software. Just close the window.
  • When the scan has finished, a log.txt file will be created and automatically saved in the C:\Program Files\EsetOnlineScanner\ folder.
  • Click Posted Image > Run..., then copy and paste this command into the open box: C:\Program Files\EsetOnlineScanner\log.txt
  • The scan results will open in Notepad. Copy and paste the contents of log.txt in your next reply.
Note: Some online scanners will detect existing anti-virus software and refuse to cooperate. You may have to disable the real-time protection components of your existing anti-virus and try running the scan again. If you do this, remember to turn them back on after you are finished.
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#3 destroy_all_dells

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Posted 27 April 2010 - 10:37 AM

Okay I ran all the said programs. Only issue is that after running MBAM, the computer did not restart correctly. It got to the Windows Load Screen (the one with the progress bar that does not actually show progress) and then ran for 30 minutes. It's done this before and the only way to get past this screen is to abort. Here are the logs. After running both of these scans, the system.exe process is still running.

Malwarebytes' Anti-Malware 1.45
www.malwarebytes.org

Database version: 4041

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

4/26/2010 11:00:50 PM
mbam-log-2010-04-26 (23-00-50).txt

Scan type: Quick scan
Objects scanned: 170560
Time elapsed: 37 minute(s), 42 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 6
Registry Values Infected: 2
Registry Data Items Infected: 0
Folders Infected: 4
Files Infected: 9

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CLASSES_ROOT\Typelib\{56acb669-4139-5611-cbba-f5acb0f4db09} (Trojan.FakeAlert) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{b2c7b2a1-00f3-42bd-f434-00aaba2c8952} (Trojan.Ertfor) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Active Setup\Installed Components\{28abc5c0-4fcb-11cf-aax5-81cx1c635612} (Trojan.Agent) -> Quarantined and deleted successfully.
HKEY_USERS\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{494e6cec-7483-a4ee-0938-895519a84bc7} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\{494e6cec-7483-a4ee-0938-895519a84bc7} (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\driver (Trojan.Downloader) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\{b2c7b2a1-00f3-42bd-f434-00aaba2c8952} (Trojan.Ertfor) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SvcHost\driver (Trojan.Agent) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
C:\Documents and Settings\All Users\Application Data\14608124 (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\All Users\Application Data\18492504 (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\All Users\Application Data\94618116 (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\All Users\Application Data\98502496 (Rogue.Multiple) -> Quarantined and deleted successfully.

Files Infected:
C:\Documents and Settings\All Users\Application Data\14608124\14608124.glu (Rogue.Multiple) -> Quarantined and deleted successfully.
C:\Documents and Settings\Albert\Application Data\wiaserva.log (Malware.Trace) -> Quarantined and deleted successfully.
C:\Documents and Settings\Albert\Application Data\wiaservg.log (Malware.Trace) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\lich.dat (Stolen.data) -> Quarantined and deleted successfully.
C:\WINDOWS\010112010146118114.lso (Worm.KoobFace) -> Quarantined and deleted successfully.
C:\WINDOWS\0101120101465452.lso (Worm.KoobFace) -> Quarantined and deleted successfully.
C:\WINDOWS\0101120101465749.lso (Worm.KoobFace) -> Quarantined and deleted successfully.
C:\WINDOWS\bf23567.dat (Worm.KoobFace) -> Quarantined and deleted successfully.
C:\WINDOWS\jmmark2.dat (Worm.KoobFace) -> Quarantined and deleted successfully.

This is the ESET Log


ESETSmartInstaller@High as CAB hook log:
OnlineScanner.ocx - registred OK
# version=7
# iexplore.exe=8.00.6001.18702 (longhorn_ie8_rtm(wmbla).090308-0339)
# OnlineScanner.ocx=1.0.0.6211
# api_version=3.0.2
# EOSSerial=2fd78e74d36a0049bf6ad0349a36b639
# end=finished
# remove_checked=true
# archives_checked=false
# unwanted_checked=true
# unsafe_checked=false
# antistealth_checked=true
# utc_time=2010-04-27 10:26:22
# local_time=2010-04-27 03:26:22 (-0800, Pacific Daylight Time)
# country="United States"
# lang=1033
# osver=5.1.2600 NT Service Pack 3
# compatibility_mode=1024 16777175 100 0 8850535 8850535 0 0
# compatibility_mode=8192 67108863 100 0 0 0 0 0
# compatibility_mode=8449 16774142 16 1 7888578 7888578 0 0
# compatibility_mode=9217 16777214 75 70 7196642 13335334 0 0
# scanned=369419
# found=2
# cleaned=2
# scan_time=13610
C:\Documents and Settings\Guest\Local Settings\Temporary Internet Files\Content.IE5\GTSB0JQJ\phase2D[1].htm HTML/ScrInject.B.Gen virus (deleted - quarantined) 00000000000000000000000000000000 C
C:\System Volume Information\_restore{A3AF1028-6296-4E93-8141-D98E02043254}\RP204\A0067735.vbs Win32/Adware.ISearch application (cleaned by deleting - quarantined) 00000000000000000000000000000000 C

#4 Elise

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Posted 28 April 2010 - 06:12 AM

Hello there, since boopme is unavailabe at the moment, I am taking over this thread.

Please let me know how are things running now.

regards, Elise


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#5 destroy_all_dells

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Posted 25 July 2010 - 11:56 AM

That didn't fix the problem. This system.exe process which several other forums claim is a backdoor problem is still installed. Even after reinstalling windows, mostly to take advantage of my new SSD, the stupid bugger is back. Here are the new scan logs

ESET

ESETSmartInstaller@High as downloader log:
all ok
# version=7
# OnlineScannerApp.exe=1.0.0.1
# OnlineScanner.ocx=1.0.0.6211
# api_version=3.0.2
# EOSSerial=aa3c993e6049a94a880b518eb42a427f
# end=finished
# remove_checked=true
# archives_checked=false
# unwanted_checked=true
# unsafe_checked=false
# antistealth_checked=true
# utc_time=2010-07-25 04:51:03
# local_time=2010-07-25 09:51:03 (-0800, Pacific Daylight Time)
# country="United States"
# lang=1033
# osver=5.1.2600 NT Service Pack 3
# compatibility_mode=1024 16777175 100 0 1702282 1702282 0 0
# compatibility_mode=8192 67108863 100 0 0 0 0 0
# scanned=117097
# found=0
# cleaned=0
# scan_time=2204


MBAM

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 4346

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

7/25/2010 9:09:12 AM
mbam-log-2010-07-25 (09-09-12).txt

Scan type: Quick scan
Objects scanned: 122952
Time elapsed: 3 minute(s), 28 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)


Please let me know what to do to get rid of this rootkit.

#6 boopme

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Posted 25 July 2010 - 08:49 PM

Hello we will need specialised tools for this. First about backdoor bots and Rootkits.

Rootkits, backdoor Trojans, Botnets, and IRC Bots are very dangerous because they compromise system integrity by making changes that allow it to by used by the attacker for malicious purposes. Rootkits are used by Trojans to conceal its presence (hide from view) in order to prevent detection of an attacker's software and make removal more difficult. Many rootkits can hook into the Windows 32-bit kernel, and patch several APIs to hide new registry keys and files they install. They can disable your anti-virus and security tools to prevent detection and removal. Remote attackers use backdoors as a means of accessing and taking control of a computer that bypasses security mechanisms. This type of exploit allows them to steal sensitive information like passwords, personal and financial data which is send back to the hacker. To learn more about these types of infections, you can refer to:

What danger is presented by rootkits?
Rootkits and how to combat them
r00tkit Analysis: What Is A Rootkit

If your computer was used for online banking, has credit card information or other sensitive data on it, you should disconnect from the Internet until your system is cleaned. All passwords should be changed immediately to include those used for banking, email, eBay, paypal and online forums. You should consider them to be compromised and change each password using a clean computer, not the infected one. If not, an attacker may get the new passwords and transaction information. If using a router, you need to reset it with a strong logon/password so the malware cannot gain control before connect again. Banking and credit card institutions should be notified of the possible security breach. Because your computer was compromised please read:

How Do I Handle Possible Identify Theft, Internet Fraud and CC Fraud?
What Should I Do If I've Become A Victim Of Identity Theft?
Identity Theft Victims Guide - What to do


Although the infection has been identified and may be removed, your PC has likely been compromised and there is no way to be sure the computer can ever be trusted again. It is dangerous and incorrect to assume the computer is secure even if the malware appears to have been removed. In some instances an infection may have caused so much damage to your system that it cannot be completely cleaned or repaired so you can never be sure that you have completely removed a rootkit. The malware may leave so many remnants behind that security tools cannot find them. Tools that claim to be able to remove rootkits cannot guarantee that all traces of it will be removed. Many experts in the security community believe that once infected with this type of malware, the best course of action is to wipe the drive clean, reformat and reinstall the OS. Please read:

When should I re-format? How should I reinstall?
Help: I Got Hacked. Now What Do I Do?
Where to draw the line? When to recommend a format and reinstall?


Should you decide not to follow that advice, we will do our best to help clean the computer of any infections but we cannot guarantee it to be trustworthy or that the removal will be successful. Some infections are difficult to remove completely because of their morphing characteristics which allows the malware to regenerate itself. Sometimes there is another hidden piece of malware which has not been detected by your security tools that protects malicious files and registry keys (which have been detected) so they cannot be permanently deleted. Disinfection will probably require the use of more powerful tools than we recommend in this forum. Before that can be done you will need you to create and post a DDS/HijackThis log for further investigation. Let me know how you wish to proceed.

To clean ... Please go here....
Preparation Guide .

Create a DDS log and post it in the new topic explained in step 9,which is here Virus, Trojan, Spyware, and Malware Removal Logs and not in this topic,thanks.
If Gmer won't run,skip it and move on.
Let me know if that went well.

Edited by boopme, 25 July 2010 - 08:50 PM.

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 Orange Blossom

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Posted 28 July 2010 - 09:53 PM

Hello,

Now that you have posted a log here: http://www.bleepingcomputer.com/forums/t/335373/systemexe-process/ 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 MRT 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 MRT 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 MRT 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 MRT 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 MRT Team member is already assisting you and not open the thread to respond.

Please be patient. It may take several days to get a response but your log will be reviewed and answered as soon as possible. I advise checking your topic once a day for responses as the e-mail notification system is unreliable.

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

Orange Blossom :thumbsup:
Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

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