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

Recurring Backdoor.Tidserv!inf in Restore Folders


  • Please log in to reply
3 replies to this topic

#1 sstea

sstea

  • Members
  • 2 posts
  • OFFLINE
  •  
  • Local time:07:29 PM

Posted 21 June 2010 - 08:32 AM

I have a PC loaded with Windows XP MCE, Version 2002 SP2

Norton Internet Security keeps complaining about Backdoor.Tidserv!inf being found in my system restore files.

e.g.

Infected file: c:system volume information\_restore{38619354-a30c-4aa1-999e-c6e4474b633e}\RP2004\A0210913.sys Manual removal required.

I had other Malware infections previously and based on instructions from another website I ran combofix.

A few days I get the above warning from NIS about this type of file in one of my recovery folders.

Please help.

Thanks.

BC AdBot (Login to Remove)

 


#2 quietman7

quietman7

    Bleepin' Janitor


  • Global Moderator
  • 51,597 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Virginia, USA
  • Local time:07:29 PM

Posted 21 June 2010 - 10:03 AM

The detected _restore{GUID}\RP***\A00*****.xxx file(s) identified by your scan are in the System Volume Information Folder (SVI) which is a part of System Restore. The *** after RP represents a sequential number automatically assigned by the operating system. The ***** after A00 represents a sequential number where the original file was backed up and renamed except for its extension. To learn more about this, refer to:System Restore is the feature that protects your computer by monitoring a core set of system and application files and by creating backups (snapshots saved as restore points) of vital system configurations and files before changes are made. These restore points can be used to "roll back" your computer to a clean working state in the event of a problem. This makes it possible to undo harmful changes to your system configurations including registry modifications made by software or malware by reverting the operating systems configuration to an earlier date. See What's Restored when using System Restore and What's Not.

The SVI folder is protected by permissions that only allow the system to have access and is hidden by default on the root of every drive, partition or volume including most external drives, and some USB flash drives. For more detailed information, read System Restore Overview and How it works and How antivirus software and System Restore work together.

System Restore is enabled by default and will back up the good as well as malevolent files, so when malware is present on the system it gets included in restore points as an A00***** file. If you only get a detection on a file in the SVI folder, that means the original file was on your system in another location at some point and probably has been removed. However, when you scan your system with anti-virus or anti-malware tools, you may receive an alert that a malicious file was detected in the SVI folder (in System Restore points) but the anti-virus software was unable to remove it. Since the SVI folder is a protected directory, most anti-virus and scanning tools cannot access it to disinfect or delete these files. If not removed, they sometimes can reinfect your system if you accidentally use an old restore point.

If your anti-virus or anti-malware tool cannot move the files to quarantine, they sometimes can reinfect your system if you accidentally use an old restore point. In order to avoid reinfection and remove these file(s) if your security tools cannot remove them, the easiest thing to do after disinfection is Create a New Restore Point to enable your computer to "roll-back" to a clean working state and use Disk Cleanup to remove all but the most recent restore point. Vista and Windows 7 users can refer to these links: Create a New Restore Point in Vista or Windows 7 and Disk Cleanup in Vista.
.
.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif

#3 sstea

sstea
  • Topic Starter

  • Members
  • 2 posts
  • OFFLINE
  •  
  • Local time:07:29 PM

Posted 28 June 2010 - 09:30 AM

Quietman7,

Thanks for your response. I wasn't notified by email so my response is delayed.

I have been manually deleting each of these infected files in the system restore directory as they appear.

My concern is that once or twice a week Norton Internet Security is catching the infected files at a new restore point. This leads me to believe that there is an active infected file somewhere on my system that NIS is missing and is only showing up when the respective system restore directory is scanned. I have not been doing any restores so this cannot be reinfection from an old file.

How can I get to the bottom of this?

Thanks

#4 quietman7

quietman7

    Bleepin' Janitor


  • Global Moderator
  • 51,597 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Virginia, USA
  • Local time:07:29 PM

Posted 28 June 2010 - 12:57 PM

Sounds like you need to investigate some more and perform additional scans as Norton may not be finding everything.

Please download TFC (Temp File Cleaner) by Old Timer and save it to your desktop.
alternate download link
  • Save any unsaved work. TFC will close ALL open programs including your browser!
  • Double-click on TFC.exe to run it. If you are using Vista, right-click on the file and choose Run As Administrator.
  • Click the Start button to begin the cleaning process and let it run uninterrupted to completion.
  • TFC will clear out all temp folders for all user accounts (temp, IE temp, Java, FF, Opera, Chrome, Safari), including Administrator, All Users, LocalService, NetworkService, and any other accounts in the user folder.
  • Important! If TFC prompts you to reboot, please do so immediately. If not prompted, manually reboot the machine anyway to ensure a complete clean.
Note: It is normal for the computer to be slow to boot after running TFC cleaner the first time.

Please download Malwarebytes Anti-Malware (v1.46) and save it to your desktop.Download Link 1
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.
    For instructions with screenshots, please refer to the How to use Malwarebytes' Anti-Malware Guide.
  • 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 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 begin.
  • If offered the option to get information or buy software. Just close the window.
  • The scan will take a while so be patient and do NOT use the computer while the scan is running. Keep all other programs and windows closed.
  • 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 type or copy and paste everything in the code box below into the Open dialogue box:

    C:\Program Files\ESET\EsetOnlineScanner\log.txt
  • Click Ok and 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.
.
.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users