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Antivirus removed trojan - How do I know if it's all gone?

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#1 Mikey B

Mikey B

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Posted 06 December 2009 - 01:42 PM

Hi, first post here! I was on a music downloading site (www.mp3raid.com), and it started acting goofy. I don't recall clicking on anything suspicious, but apparently I didn't have to. As I recall (this was late last nite), an Adobe PDF file started opening (I'm guessing it was fake), but I couldln't close it and then while I was trying to close the PDF and the browser, it locked up my desktop. I couldn't click on anything or close anything. Like it took over. I ended up pushing the buttom on the front of the computer to turn it off.

I turned it back on to try to run a virus scan. It was still locking up and wouldn't let me do anything. I turned it off again and restarted in safe mode, and did a system restore (all I could think of to do). That allowed me to boot up normally and finally run a virus scan (ESET Smart Security). This is what showed up.....

G:\Cathy's\Downloads\setup_build7_138.exe - a variant of Win32/Kryptik.AKT trojan - cleaned by deleting - quarantined [1]

The G drive is a partition where we keep all of our data files (mine and my wife's), and the C drive is used for the operating system and applications.

Not sure why it went into my wife's files (Cathy's). I don't think her desktop wasn't even opened at the time. I did notice one other entry in my ESET virus logs......

10/2/2009 11:03:08 PM HTTP filter file hxxp://nzz.bkdowei.info/itoq/xd/pdf.pdf[/url] PDF/Exploit.Gen trojan connection terminated - quarantined PUPPETS-C348B05\Cathy Threat was detected upon access to web by the application: C:\Program Files\Mozilla Firefox\firefox.exe.

My wife mostly uses Firefox for her web browsing. I should probably do the same! <G>

Thought things were okay. I was looking at a Guitar Tab web site (one I've used with no problems in the past), and another PDF started loading. Not sure if it was another bogus PDF or what but it had me very concerned that I might be still infected. It delayed when I tried to close it, but probably mostly me being concerned. It may have been a normal occurence and not a bogus file at all. I did another virus scan and it came up clean.

The computer has been working just fine all day today so far, but I just want to know how I can verify that all is okay and that I'm not letting a trojan spread through my ingnorance.

Windows XP Home Edition SP2 (all critical updates have been done except SP3. I'm leary of it from things I've heard)

IE 7

Have not made any recent system changes or installed new software in the last week as I recall.

This is a home computer, but is used for my small business (email, word processing, internet, etc.). 2 users, my wife and myself. No network.

Again, mostly just concerned that I could still be infected and not know it. Am I being paranoid, or is there some standard safety protocol steps that should be taken after a trojan like this has been detected and supposedly deleted?

Thanks in advance for any help or advice on this.

Mike B.

Edited by garmanma, 06 December 2009 - 03:22 PM.
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#2 garmanma


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Posted 06 December 2009 - 03:27 PM

Welcome to BC
Let's see if we can flush anything out

Run mbam in normal mode

The process of cleaning your computer may require you to temporarily disable some security programs. If you are using SpyBot Search and Destroy, please refer to Note 2 at the bottom of this page.

Please download Malwarebytes Anti-Malware Free version and save it to your desktop.

NOTE: Before saving MBAM please rename it to zztoy.exe....now save it to your desktop.

alternate download link 1
alternate download link 2
  • 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.
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.
-- 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.

Note 2:
-- MBAM may make changes to your registry as part of its disinfection routine. If you're using other security programs that detect registry changes (like Spybot's Teatimer), they may interfere with the fix or alert you after scanning with MBAM. Please disable such programs until disinfection is complete or permit them to allow the changes. To disable these programs, please view this topic: How To Temporarily Disable Your Anti-virus, Firewall And Anti-malware Programs
Be sure to re-enable your AV and malware scan tools if they were disabled


SAS, may take a long time to scan
Please download and scan with SUPERAntiSpyware Free
  • Double-click SUPERAntiSypware.exe and use the default settings for installation.
  • An icon will be created on your desktop. Double-click that icon to launch the program.
  • If asked to update the program definitions, click "Yes". If not, update the definitions before scanning by selecting "Check for Updates". (If you encounter any problems while downloading the updates, manually download them from here. Double-click on the hyperlink for Download Installer and save SASDEFINITIONS.EXE to your desktop. Then double-click on SASDEFINITIONS.EXE to install the definitions.)
  • In the Main Menu, click the Preferences... button.
  • Click the "General and Startup" tab, and under Start-up Options, make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
  • Click the "Scanning Control" tab, and under Scanner Options, make sure the following are checked (leave all others unchecked):
    • Close browsers before scanning.
    • Scan for tracking cookies.
    • Terminate memory threats before quarantining.
  • Click the "Close" button to leave the control center screen and exit the program.
  • Do not run a scan just yet.
Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

Scan with SUPERAntiSpyware as follows:
  • Launch the program and back on the main screen, under "Scan for Harmful Software" click Scan your computer.
  • On the left, make sure you check C:\Fixed Drive.
  • On the right, under "Complete Scan", choose Perform Complete Scan and click "Next".
  • After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
  • Make sure everything has a checkmark next to it and click "Next".
  • A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
  • If asked if you want to reboot, click "Yes" and reboot normally.
  • To retrieve the removal information after reboot, launch SUPERAntispyware again.
    • Click Preferences, then click the Statistics/Logs tab.
    • Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
    • If there are several logs, click the current dated log and press View log. A text file will open in your default text editor.
    • Please copy and paste the Scan Log results in your next reply.
  • Click Close to exit the program.
Note.. SAS doesn't open the registry hives for other user accounts on the system, so scans should be done from each user account.

Edited by garmanma, 06 December 2009 - 03:29 PM.

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