TechSpot

JS/Downloader.agent cannot remove

By crossjm
May 21, 2008
  1. I can not remove this malware. I have tried various tools listed over the internet that are recommended for this malware but to no avail. I am running windows xp through VM fusion on an apple mac if that makes any difference.

    As I am now getting frustrated I have attached a HJT log file in the hope someone can help me.
     
  2. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Hi crossjm,

    Welcome to Techspot!

    My name is Blind Dragon and I will be helping you with your Malware problem. During the course of our interactions please be sure to follow all instructions carefully, and ask questions if you are unsure of how to proceed at any point.

    Please have a read here-> Is your system infected? Read this before Cleaning or Formatting

    If you decide to clean your system please follow these Viruses/Spyware/Malware, preliminary removal instructions and post back in this thread with the requested logs. There should be at least 3.

    1)MBAM or SAS log
    2)Combofix log
    3)Hijackthis log (Step 15)

    This thread is for the use of crossjm only. Please don't post your own virus/spyware problems in this thread. Instead, open a new thread in our security and the web forum.
     
  3. crossjm

    crossjm TS Rookie Topic Starter

  4. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Copy Smitfraud instruction and paste into notepad then save it to desktop to have while in safe mode.

    Step 1
    Download and install Malwarebytes' Anti-Malware
    • Please download Malwarebytes' Anti-Malware to your desktop.
    • Double-click mbam-setup.exe and follow the prompts to install the program.
    • At the end, be sure a checkmark is placed next to
      • Update Malwarebytes' Anti-Malware
    • then click Finish.
    • If an update is found, it will download and install the latest version.
    • After update close the program


    Step 2
    Download ATF Cleaner
    Download ATF Cleaner by Atribune to your desktop. Then close the program.


    Step 3
    Download Smitfraudfix by S!ri
    • Download Smitfraudfix by S!ri from HERE
    • Do NOT run yet
    ----------------------------------------------------------------------------------------------------------

    ********Print this section or copy and paste it into notepad and save it to your desktop to have in safe mode ***********

    Step 4
    Boot into Safe Mode
    • Restart your computer and start pressing the F8 key on your keyboard.
    • Select the Safe Mode option when the Windows Advanced Options menu appears, and then press ENTER.


    Step 5
    Run Smitfraudfix
    • Now you should be in safe mode
    • Double-click SmitfraudFix.exe
    • Select 2 and hit Enter to delete infected files.
    • You will be prompted: Do you want to clean the registry ? answer Y (yes) and hit Enter in order to remove the Desktop background and clean registry keys associated with the infection.
    • The tool will now check if wininet.dll is infected. You may be prompted to replace the infected file (if found): Replace infected file ? answer Y (yes) and hit Enter to restore a clean file.
    • A reboot may be needed to finish the cleaning process. The report can be found at the root of the system drive, usually at C:\rapport.txt


    Step 6
    Scan with MBAM
    • Once the program has loaded, select Perform full scan, then click Scan.
    • When the scan is complete, click OK, then Show Results to view the results.
    • Be sure that everything is checked, and click Remove Selected.
    • When completed, a log will open in Notepad. please attach this log with your reply
      • If you accidently close it, the log file is saved here and will be named like this:
      • C:\Documents and Settings\Username\Application Data\Malwarebytes\Malwarebytes' Anti-Malware\Logs\mbam-log-date (time).txt


    Step 7
    Double-click ATF Cleaner.exe to open it.

    Under Main choose:
    Windows Temp
    Current User Temp
    All Users Temp
    Cookies
    Temporary Internet Files
    Prefetch
    Java Cache

    *The other boxes are optional*
    Then click the Empty Selected button.

    Firefox or Opera:
    Click Firefox or Opera at the top and choose: Select All
    Click the Empty Selected button.
    NOTE: 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.

    ---------------------------------------------------------------------------------

    Reboot to Normal Mode and attach the following logs:
    1)C:\rapport.txt
    2)MBAM log
     
  5. crossjm

    crossjm TS Rookie Topic Starter

    Latest Logs

    I have followed the latest and here are the logs. The JS/downloader.agent is still present though.
     
  6. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Ok, let's see an online scan.

    Run Kaspersky Online AV Scanner

    Order to use it you have to use Internet Explorer.
    Go to Kaspersky and click the Accept button at the end of the page.

    Note for Internet Explorer 7 users: If at any time you have trouble with the accept button of the licence, click on the Zoom tool located at the right bottom of the IE window and set the zoom to 75 %. Once the license accepted, reset to 100%.
    • Read the Requirements and limitations before you click Accept.
    • Allow the ActiveX download if necessary.
    • Once the database has downloaded, click Next.
    • Click Scan Settings and change the "Scan using the following antivirus database" from standard to extended and then click OK.
    • Click on "My Computer"
    • When the scan has completed, click Save Report As...
    • Enter a name for the file in the Filename: text box and then click the down arrow to the right of Save as type: and select text file (*.txt)
    • Click Save - by default the file will be saved to your Desktop, but you can change this if you wish.
    Attach the report into your next reply
     
  7. crossjm

    crossjm TS Rookie Topic Starter

    Kaspersky scan

    Here is the next scan
     
  8. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Hmm, the only thing showing on the log is a false positive for the smitfraudfix tool.

    How do you know that the infection is still present? What is telling you that it's still there?

    Please attach a fresh hijackthis log
     
  9. crossjm

    crossjm TS Rookie Topic Starter

    Latest Log and Information

    The avg was reporting js/downloader.agent and was finding this in temporary internet files. If I deleted these files the virus would return on next boot up.

    However, yesterday I thought I try Norton Antivirus free version. On a full system scan this found W32.SillyFDC. Could this have been the cause?

    I have attached the latest hijack log.

    I also noticed some other strange behaviour. Windows Update stopped working. I resolved this by adding 4.2.2.2 in DNS preferences. My windows firewall had became turned off. I have turned this back on.
     
  10. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Let manually clean the cache, then you should be all set -> temp files should be cleaned out regularly, I recommend you keep ATF Cleaner for that. Also install Winpatrol to monitor changes and you can use it to manage startups by right clicking the icon in the system tray and selecting startup info...

    Uninstall Combofix
    * Click START then RUN
    * Now type Combofix /u in the runbox
    * Make sure there's a space between Combofix and /u
    * Then hit Enter.

    * The above procedure will:
    * Delete the following:
    * ComboFix and its associated files and folders.
    * Reset the clock settings.
    * Hide file extensions, if required.
    * Hide System/Hidden files, if required.
    * Set a new, clean Restore Point.

    -----------------------------------------------------------------------
    Cleanup using OTMoveit2 by OldTimer
    Now we can clear out the rest of the programs we've been using to clean up your computer, they are not suitable for general malware removal and could cause damage if launched accidentally.

    Download OTMoveIt2 by OldTimer OTMoveIt2.exe and place it on your desktop.

    1. Double click OTMoveIt2.exe to launch it.
    If using Vista Right-Click OTMoveIt and choose Run As Administrator
    2. Click on the CleanUp! button.
    3. OTMoveIt2 will download a list from the Internet, if your firewall or other defensive programs alerts you, allow it access.
    4. Click YES at the next prompt (list downloaded, Do you want to begin cleanup process?)

    * When finished exit out of OTMoveIt2

    ---------------------------------------------------------------------------

    Now that you are clean, please follow these simple steps in order to keep your computer clean and secure:
    1. Set correct settings for files
      • Click Start > My Computer > Tools menu (at top of page) > Folder Options > View tab.
      • Under "Hidden files and folders" if necessary select Do not show hidden files and folders.
      • If unchecked please check Hide protected operating system files (Recommended)
      • If necessary check "Display content of system folders"
      • If necessary Uncheck Hide file extensions for known file types.
      • Click OK

      clear system restore points

      • This is a good time to clear your existing system restore points and establish a new clean restore point:
        • Go to Start > All Programs > Accessories > System Tools > System Restore
        • Select Create a restore point, and Ok it.
        • Next, go to Start > Run and type in cleanmgr
        • Select the More options tab
        • Choose the option to clean up system restore and OK it.
        This will remove all restore points except the new one you just created.

    2. Make your Internet Explorer more secure - This can be done by following these simple instructions:
      1. From within Internet Explorer click on the Tools menu and then click on Options.
      2. Click once on the Security tab
      3. Click once on the Internet icon so it becomes highlighted.
      4. Click once on the Custom Level button.
        • Change the Download signed ActiveX controls to Prompt
        • Change the Download unsigned ActiveX controls to Disable
        • Change the Initialize and script ActiveX controls not marked as safe to Disable
        • Change the Installation of desktop items to Prompt
        • Change the Launching programs and files in an IFRAME to Prompt
        • Change the Navigate sub-frames across different domains to Prompt
        • When all these settings have been made, click on the OK button.
        • If it prompts you as to whether or not you want to save the settings, press the Yes button.
      5. Next press the Apply button and then the OK to exit the Internet Properties page.
    3. Use an AntiVirus Software - It is very important that your computer has an anti-virus software running on your machine. This alone can save you a lot of trouble with malware in the future.

      See this link for a listing of some online & their stand-alone antivirus programs:

      Virus, Spyware, and Malware Protection and Removal Resources

    4. Update your AntiVirus Software - It is imperitive that you update your Antivirus software at least once a week (Even more if you wish). If you do not update your antivirus software then it will not be able to catch any of the new variants that may come out.

    5. Use a Firewall - I can not stress how important it is that you use a Firewall on your computer. Without a firewall your computer is succeptible to being hacked and taken over. I am very serious about this and see it happen almost every day with my clients. Simply using a Firewall in its default configuration can lower your risk greatly.

      For a tutorial on Firewalls and a listing of some available ones see the link below:

      Understanding and Using Firewalls

    6. Visit Microsoft's Windows Update Site Frequently - It is important that you visit http://www.windowsupdate.com regularly. This will ensure your computer has always the latest security updates available installed on your computer. If there are new updates to install, install them immediately, reboot your computer, and revisit the site until there are no more critical updates.

    7. Install Spybot - Search and Destroy - Install and download Spybot - Search and Destroy with its TeaTimer option. This will provide realtime spyware & hijacker protection on your computer alongside your virus protection. You should also scan your computer with program on a regular basis just as you would an antivirus software.

      A tutorial on installing & using this product can be found here:

      Using Spybot - Search & Destroy to remove Spyware , Malware, and Hijackers

    8. Install Ad-Aware - Install and download Ad-Aware. ou should also scan your computer with program on a regular basis just as you would an antivirus software in conjunction with Spybot.

      A tutorial on installing & using this product can be found here:

      Using Ad-aware to remove Spyware, Malware, & Hijackers from Your Computer

    9. Install SpywareBlaster - SpywareBlaster will added a large list of programs and sites into your Internet Explorer settings that will protect you from running and downloading known malicious programs.

      A tutorial on installing & using this product can be found here:

      Using SpywareBlaster to protect your computer from Spyware and Malware

    10. Update all these programs regularly - Make sure you update all the programs I have listed regularly. Without regular updates you WILL NOT be protected when new malicious programs are released.
    Follow this list and your potential for being infected again will reduce dramatically.

    here are some additional utilities that will enhance your safety

    • IE/Spyad <= IE/Spyad places over 4000 websites and domains in the IE Restricted list which will severely impair attempts to infect your system. It basically prevents any downloads (Cookies etc) from the sites listed, although you will still be able to connect to the sites.
    • MVPS Hosts file <= The MVPS Hosts file replaces your current HOSTS file with one containing well know ad sites etc. Basically, this prevents your coputer from connecting to those sites by redirecting them to 127.0.0.1 which is your local computer
    • Google Toolbar <= Get the free google toolbar to help stop pop up windows.
    • Winpatrol <= Download and install the free version of Winpatrol. a tutorial for this product is located here:
      Using Winpatrol to protect your computer from malicious software
     
  11. crossjm

    crossjm TS Rookie Topic Starter

    thank you I have implemented your recommendations
     
  12. Amodbone

    Amodbone TS Rookie

    JS Downloader from he double sticks

    I am having the same problem. My AVG software finds the virus but i cant get rid of it. I think im going to eat my computer!!!!!!!!!!!!
     
  13. Amodbone

    Amodbone TS Rookie

    I need help removing the JS Downlowder Agent

    I am running XP and using AVG antispyware (however i cant update it because of this virus ((i think). I recently downloaded a tool that would delete it if i started up in safe mode. I went to do that, and instead the computer said it couldnt recognize a drive and to push F1 to continue which bypassed the safe mode access area. Suddenly in the file system i see a "floppy 3.5 drive A". I dont have a floppy drive. I went into the system setup and everything seemed to check out there. What happened? How can I remove this virus? How can I remove a phantom drive? I going crazy! Please help me
     
  14. Blind Dragon

    Blind Dragon TS Evangelist Posts: 3,908

    Hi Amodbone,

    Welcome to Techspot!

    My name is Blind Dragon and I will be helping you with your Malware problem. During the course of our interactions please be sure to follow all instructions carefully, and ask questions if you are unsure of how to proceed at any point.

    Please have a read here-> Is your system infected? Read this before Cleaning or Formatting

    If you decide to clean your system please follow these Viruses/Spyware/Malware, preliminary removal instructions and post back in your own thread, in our security and the web forum with the requested logs. There should be at least 3.

    1)MBAM or SAS log
    2)Combofix log
    3)Hijackthis log (Step 15)

    This thread is for the use of crossjm only. Please don't post your own virus/spyware problems in this thread. Instead, open a new thread in our security and the web forum.
     
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