Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Logonsys.exe - What is this?/ Moved


  • Please log in to reply
5 replies to this topic

#1 Tim W

Tim W

  • Members
  • 2 posts
  • OFFLINE
  •  
  • Local time:06:32 PM

Posted 29 March 2009 - 01:10 AM

I have something starting on my computer at start up that I am not sure what it is. There isnt much on the web about it, and most was in German or italian or something that I can not read. I did see one site that said it was a trojan and gave a way to fix it using ComboFix. Problem is, it didnt fix it. I use Norton 360 as well as Spyware Detector and niether of then find it. It is something called logonsys.exe. Any idea what this is? If it is a trojan, how do I remove it? Any and all help will be GREATLY appreciated.

BC AdBot (Login to Remove)

 


#2 Orange Blossom

Orange Blossom

    OBleepin Investigator


  • Moderator
  • 36,959 posts
  • OFFLINE
  •  
  • Gender:Not Telling
  • Location:Bloomington, IN
  • Local time:06:32 PM

Posted 29 March 2009 - 01:18 AM

As no logs have been posted, I am shifting this topic from the specialized HiJack This forum to the Am I Infected forum.

PLEASE DO NOT NOW POST LOGS unless a log is specifically requested.

gave a way to fix it using ComboFix. Problem is, it didnt fix it.


Please note that ComboFix is an extremely powerful tool which should only be used when instructed to do so by someone who has been properly trained. ComboFix is intended by its creator to be "used under the guidance and supervision of an expert." It is NOT for private use. Please read Combofix's Disclaimer. Using this tool incorrectly could lead to disastrous problems with your operating system such as preventing it from ever starting again.

Running ComboFix by yourself is like performing open heart surgery on yourself--the scalpel and other surgical tools that is ComboFix is meant to be wielded by a highly trained surgeon only in emergencies or dire circumstances. When the surgeon is thru s/he leaves the room. So combofix should be removed from a system once it has accomplished its job, unlike an AV that is there to protect you from future infections.

. . . CF does make some alterations to your system if you run it. Even if you had no malware removed and run the uninstall command, some things may be different now on your system. I can tell you that one thing is that all your restore points will be flushed out and a new one created. There is a good reason to do that when you have a severe infection--but if you aren't infected you might need those restore points.

Read and abide by the disclaimer people. It's there for a reason. Stick to running and protecting yourself with a good AV and firewall and an anti-malware scanner or two. If you feel you need a second opinion, try running online scans. If you feel you might need surgery, come here to BC and ask for help--that is what we're here for.


From: http://www.bleepingcomputer.com/forums/ind...t&p=1159014


I have something starting on my computer at start up . . . It is something called logonsys.exe


Can you please describe it? What does it look like? What does it do? How do you know it's there?

Are you experiencing other issues with your computer: redirections, popups, etc. Please be as specific as possible.

What is your operating system: Windows XP, Vista, etc.?

Orange Blossom :thumbsup:

Edited by Orange Blossom, 29 March 2009 - 10:14 AM.
Removed duplicate text. ~ OB

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

Orange Blossom

An ounce of prevention is worth a pound of cure

SpywareBlaster, WinPatrol Plus, ESET Smart Security, Malwarebytes' Anti-Malware, NoScript Firefox ext., Norton noscript

#3 DaChew

DaChew

    Visiting Alien


  • Members
  • 10,317 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:millenium falcon and rockytop
  • Local time:06:32 PM

Posted 29 March 2009 - 01:43 AM

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.
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".


Please download Malwarebytes Anti-Malware (v1.34) and save it to your desktop.
alternate download link 1
alternate download link 2
If you have a previous version of MBAM, remove it via Add/Remove Programs and download a fresh copy.
  • 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 updates, manually download them from here and just double-click on mbam-rules.exe to install. Alternatively, you can update through MBAM's interface from a clean computer, copy the definitions (rules.ref) located in C:\Documents and Settings\All Users\Application Data\Malwarebytes\Malwarebytes' Anti-Malware from that system to a usb stick or CD and then copy it to the infected machine.
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 and exit MBAM.
Note: If MBAM encounters a file that is difficult to remove, you may be asked to reboot your computer so it can proceed with the disinfection process. Regardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware. 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 after scanning with MBAM. Please temporarily disable such programs or permit them to allow the changes.

http://www.bleepingcomputer.com/forums/t/114351/how-to-temporarily-disable-your-anti-virus-firewall-and-anti-malware-programs/
Chewy

No. Try not. Do... or do not. There is no try.

#4 Tim W

Tim W
  • Topic Starter

  • Members
  • 2 posts
  • OFFLINE
  •  
  • Local time:06:32 PM

Posted 29 March 2009 - 11:45 AM

As no logs have been posted, I am shifting this topic from the specialized HiJack This forum to the Am I Infected forum.

PLEASE DO NOT NOW POST LOGS unless a log is specifically requested.

gave a way to fix it using ComboFix. Problem is, it didnt fix it.


Please note that ComboFix is an extremely powerful tool which should only be used when instructed to do so by someone who has been properly trained. ComboFix is intended by its creator to be "used under the guidance and supervision of an expert." It is NOT for private use. Please read Combofix's Disclaimer. Using this tool incorrectly could lead to disastrous problems with your operating system such as preventing it from ever starting again.

Running ComboFix by yourself is like performing open heart surgery on yourself--the scalpel and other surgical tools that is ComboFix is meant to be wielded by a highly trained surgeon only in emergencies or dire circumstances. When the surgeon is thru s/he leaves the room. So combofix should be removed from a system once it has accomplished its job, unlike an AV that is there to protect you from future infections.

. . . CF does make some alterations to your system if you run it. Even if you had no malware removed and run the uninstall command, some things may be different now on your system. I can tell you that one thing is that all your restore points will be flushed out and a new one created. There is a good reason to do that when you have a severe infection--but if you aren't infected you might need those restore points.

Read and abide by the disclaimer people. It's there for a reason. Stick to running and protecting yourself with a good AV and firewall and an anti-malware scanner or two. If you feel you need a second opinion, try running online scans. If you feel you might need surgery, come here to BC and ask for help--that is what we're here for.


From: http://www.bleepingcomputer.com/forums/ind...t&p=1159014


I have something starting on my computer at start up . . . It is something called logonsys.exe


Can you please describe it? What does it look like? What does it do? How do you know it's there?

Are you experiencing other issues with your computer: redirections, popups, etc. Please be as specific as possible.

What is your operating system: Windows XP, Vista, etc.?

Orange Blossom :thumbsup:





Sorry for not giving enough info in my post.

I am running Vista Home Premium (86-bit).

I know logonsys.exe is there because at startup, the cmd prompt opens with the path locating where it is running from. It runs for about

2-3 mins prior to any of my normal start-up programs running (i.e.: Norton 360, Windows Defender, Spyware Detector, WeatherBug, etc...).

The path it gives me is c:\users\tim\roaming\microsft\window\start menu\programs\startup

I ran the ComboFIX as mentioned earlier, following the directions posted at http://tweaks.com/forum/Topic249115-29-1.aspx#bm249226.

I also ran the OTCleanIt to remove ComboFIX.

As I said in the previous post, that did not remove it. I did find, from your site, the program AutoRuns and ran it. It did locate the file and I turned off the Autorun of the program, as well as deleted the file. I cant find the file now, so I am assuming it deleted it from the machine. It is not running at startup any longer, which corrects the issue I was having with it anyway. But, is there something in the registry that I need to get rid of?

My computer is working fine, so I did nothing to damage it when running ComboFix... Thankfully. I do wish I had found your forum before I did that though.

So, if you can tell me if there is anything else I need to do, I would appreciate the comments.

Thank you in advance.

Tim Wallace

#5 Orange Blossom

Orange Blossom

    OBleepin Investigator


  • Moderator
  • 36,959 posts
  • OFFLINE
  •  
  • Gender:Not Telling
  • Location:Bloomington, IN
  • Local time:06:32 PM

Posted 29 March 2009 - 12:08 PM

Please follow DaChew's instructions from the post after mine. ~ OB
Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

Orange Blossom

An ounce of prevention is worth a pound of cure

SpywareBlaster, WinPatrol Plus, ESET Smart Security, Malwarebytes' Anti-Malware, NoScript Firefox ext., Norton noscript

#6 DaChew

DaChew

    Visiting Alien


  • Members
  • 10,317 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:millenium falcon and rockytop
  • Local time:06:32 PM

Posted 29 March 2009 - 12:41 PM

Combofix by sUBs was never intended to be used in the way that that software such as SuperAntispyware or Malwarebytes Antimalware is done. There are several excellent reasons for this Disclaimer shown when you start the program:
Some that I have observed:

About 1 in 100 times the computer will not longer be able to boot after running Combofix. This requires experienced hands to restore the system to bootability.

There are several malware infections that "target" Combofix. Experienced Helpers are aware of these infections, and take steps to remove them prior to the use of Combofix. If you do not, various things can happen depending on the infection -- from Combofix being unable to run, to the deletion of the folder C:\Windows\System32, requiring a clean install to repair.

Combofix makes some rather significant changes to the internals of XP and Vista in order to work. It has to be removed with special instructions to fully and safely revert these changes. Experienced Helpers are aware of how to accomplish the uninstallation of Combofix.

The real power of Combofix comes not as a general purposed malware remover. It is rather modest in that capacity. Combofix is powerful because it provides to the experienced Helper a convenient and powerful front-end to Scripts. It is because of its scripting strengths, and its unique reporting capabilities, that you see Combofix often recommended. But not because of its abilities as a general malware scanner.

Many malware removal experts will not respond to a request for help if they see that Combofix was run by the end-user without supervision. You might find after running Combofix that your system problems are worse, and nobody is willing to help you.

There are several general purpose anti-malware utilities where the Author(s) intended the application for general use by end-users without Supervision. Combofix is not one of them, and you would be advised to honor that position taken by its Author.

Best regards,
Bill Castner
--
============
MS-MVP 2004 - -2008, ASAP Member


Chewy

No. Try not. Do... or do not. There is no try.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users