Rustock Infection

By Waris ยท 5 replies
Feb 11, 2009
  1. Hello all,

    I have been notified by avast! of a rootkit trojan Rustock in one file:

    Subsequently a full system scan is run, and the file is marked for deletion during reboot.

    Next, I ran CCleaner as instructed and temporarily disabled RTM. Running Malwarebytes also reveal the same infected files; the scan log is attached.

    After reboot, I continued with SUPERAntiSpyware and this time, several Adware.Vundo infections are detected as well as that of elusive rootkit Rustock. Now I downloaded a game that comes with a warning that AV products may detect false positives within the game's install directory because of its unique online anti-cheat system, and since SUPERAntiSpyware detected several game file that I have confirmed (with the game author) involves in the anti-cheat procedure I am pretty confident that the Adware.Vundo (variant) reports are false positives. Nevertheless, I also attached the scan log for this program.

    I have updated my JRE to the latest version and uninstalled all the previous ones. Lastly I did a HJT scan, log file is attached.

    Speaking about symptoms I have not experienced browser hijacks (I am using Firefox 3.0.6), but since several weeks ago my computer experienced random crashes, sometimes up to once per day. I have also noticed (thanks to Spybot) that there have been several alterations in the registry, one of them being turning off the Folder Otions (I have since reenabled this).
  2. mflynn

    mflynn TS Rookie Posts: 2,655

    Download Rustbfix from one of these locations:

    Save to desktop.

    Double click rustbfix.exe

    If a Rustock.b-infection is found, you will be asked to reboot
    The reboot will longer than normal, and perhaps 2 reboots.
    After reboot 2 logfiles will open avenger.txt and pelog.txt.
    Attach logfiles.


    You ran MBAM without removing the Malware, you must continue to remove. So UPDATE MBAM and run again this time remove the Malware. Attach log.


    Download SDFix to Desktop.

    On Desktop run SDdFix It will run (install) then close.

    Then reboot into Safe Mode

    As the computer starts up, tap the F8 key several times.

    On the Boot menu Choose Safe Mode.

    Click thu all the prompts to get to desktop.

    At Desktop
    My Computer C: drive. Double-click to open.

    Look for a folder called SD Fix. Double-click to enter SD Fix.

    Double-click to RunThis.bat. Type Y to begin.

    SD Fix does its job.

    When prompted hit the enter key to restart the computer

    Your computer will reboot.

    On normal restart the Fixtool will run again and complete the removal process then say Finished,
    Hit the Enter key to end the script and load your desktop icons.

    Once the desktop is up, the SDFix report will open on screen and also be saved to the SDFix folder as Report.txt.
    Attach the Report.txt file to your next post.
    Download ComboFix

    NOTE: If you have had ComboFix more than a few days old delete and re-download.

    Get it here:
    Or here:

    Double click combofix.exe follow the prompts.

    Install Recovery Console if connected to the Internet!

    When finished, it will open a log.
    Attach the log and a new HJT log in your next reply.

    Note: Do not click combofix's window while its running. That may cause it to stall.

  3. Waris

    Waris TS Rookie Topic Starter

    All done as required. Rustbfix reports 'No Rustock.b-rootkits found', and I only have the pelog.txt. Here are the required logs:
  4. mflynn

    mflynn TS Rookie Posts: 2,655

    Excellent job!

    OK both SDFix and Combofix found and deleted much.

    So run them again to confirm no more found and that we now have clean logs.

    If so you are clean and we will begin the closing of the thread.

  5. Waris

    Waris TS Rookie Topic Starter

    Rescans by SDFix and ComboFix show everything is fixed. Could not have done all this without your help, though. Thank you very much.
  6. mflynn

    mflynn TS Rookie Posts: 2,655

    Great! Good job!

    Consider the following!

    Thread closing-------------------------------------------------------------------

    Some of these tools update so often they require downloading again later if needed. But keep and run MBAM and SAS to maintain.

    Remove ComboFix
    combofix /u
    Hit enter or click OK.

    Please download OTCleanIt

    Save to desktop.

    This will remove all the tools we used to clean your computer.

    Double-click OTCleanIt.exe. Click CleanUp. Yes to the "Begin cleanup Process?"

    Approve all if prompted by Firewall. Approve Widows Defender or other guards or security programs while OTCleanIt attempting access to the Internet to allow all.

    If prompted to Reboot click, Yes.
    OTCleanit will delete itself when finished, If not delete it by yourself.

    Run CCleaner again twice or more on Cleanup temps, then on left click Registry then Scan for issues also repeat till clean.

    Run ATF-Cleaner Temp and Registry, repeatedly until no more found.

    Fantastic cleaner.
    The issues can and are likely found is in System Restore so do the below

    Start-Programs-Accessories-System Tools-Disk- System Restore and create a new Restore point. Name it "After cleanup at TechSpot".

    Then Start-Programs-Accessories-System Tools-Disk Cleanup
    Click OK to accept C:
    Select all Boxes
    Then click More Options
    Here click System Restore and OK to "Are you sure" and the OK to Run.

    As this runs it clears all but the most recent Restore Point but it does one other thing that can contain infested files and a huge amount of disk space.

    It clears what is known as Shadow copies which are used by specialized back up programs.

    This is if you have the Volume Shadow Copy running which is the default.

    Every two weeks or so, run MBAM and SAS until clean.

    They take a while, so leave scanning while you are sleeping working or watching TV. If not done under the gun they can be scheduled not to interfere with computer time.

    If they find something they can not clean, then get back to us.

    Additionally run CCleaner. ATF-Cleaner and KCleaner.
    I have been using ThreatFire for more than a year, it just went from ver 3 to ver 4.

    It was designed to be used with and to co-exist with other Virus scanners.

    Additionally it uses a totally different process to protect. While conventional Virus scanners work from definitions ThreatFire works on recognizing Virus/Malware activity.

    It's like looking at it with 2 sets of eyes and from a different angle.

    It works like some Firewalls do to learn what is good/bad.

    After install it will ask you about everything that could be a security issue. For example the first time you run IE or FireFox it will prompt you. You would answer to approve and remember the setting. From then on no more prompts about IE or FireFox unless the exe changes like in an update.

    As it queries you about the prompt to help you determine to approve or not you can google it with one click.
    Look at

    Run SpyBot ocassionally and use the Immunize function.

    I highly reccomend Hostman: Hostman

    Download install run and allow it to disable DNS Client and select all Host files and then Update and install all host files.

    A Disk Scan (chkdsk) and Defrag are in order.

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