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Backdoor.justfun


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#1 mhull

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Posted 04 March 2008 - 05:06 PM

After building an .exe file using Multi Media Fusion v1.5 StopSign antivirus detected BackDoor.JustFun in the .exe file and quarentined it. I deleted the .exe file and StopSign no longer deteted BackDoor.JustFun. I repeated the process of building the .exe file with the same result. I also mailed an .exe from another computer to mine and StopSign identified and quarentined it, but Spyware Doctor v5.5.0.204 with Anti-virus v4.4.2. did not.

I am also running Spyware Doctor v5.5.0.204 with Anti-virus v4.4.2. I have OnGuard Protection ON and Computer Immunization ON. Scans fails to detect BackDoor.JustFun.

I have done numerious "FULL" scans of my computer Using both StopSign and Spyware Doctor.

Also note that I have been using Multi Media Fusion 1.5 for at least 2 years and nothing like this has ever happened. The problem started March 3.

Seems as though the BackDoor.JustFun attaches itself to an .exe that I build, but there must be an underlying root problem.

OS: Windows XP Home Edition SP2
Processor: Moble Intel® Pentium® 4 CPU 2.80GHz
Speed: 2800MHz
Memory: 704Mb Ram
Video: ATI Mobility Radeon 7000 1Gp
Hard Drive: 60Gb

Would appreciate some help ridding this BackDoor.
Thanks,
Marvin

{Moved to more appropriate forum ~~boopme|

Edited by boopme, 04 March 2008 - 05:12 PM.


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#2 quietman7

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Posted 04 March 2008 - 06:23 PM

Is StopSign the only program detecting this threat?

eAcceleration StopSign is an program that was previously listed as a rogue on the Rogue/Suspect Anti-Spyware Products List because of the company's history of employing deceptive advertising and drive-by-downloads. The company was also known for removing and/or disabling competing apps. These objectionable business practices were employed primarily during the years 2002-2003. It has been been de-listed as a rogue because the vendor has taken some actions to correct these concerns. I am still skeptical and would only recommend a progam with a proven track record like those mentioned in BC's List of Virus & Malware Resources or one of the other Trustworthy Anti-Spyware Products.

However, to be safe, download and scan with Dr.Web CureIt. Follow the instructions here for performing a scan in "safe mode".

Post the log in your next reply and let me know how your computer is running.
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#3 mhull

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Posted 04 March 2008 - 08:53 PM

Hi and thanks for replying. Here is my log from DRWeb. Computer seems to be still running smooth after the scan
Marvin
bandonsweeping.exe;C:\bandonsweeping;BackDoor.JustFun;Deleted.;
CncRt32.exe;C:\MMFusion\Programs\Data\Runtime;BackDoor.JustFun;Deleted.;
blockout.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
breakblocks.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
crazyblocks.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
crazybreakout.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
crazylights.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
crazymarbles.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
crazymarvin.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
crazymatch.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
crazyscore.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
crazyslider.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
crazytetris.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
crazytetris2.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
crazytetris3.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
crazywords.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
escape.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
gsmanual.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
mahjongg.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
mahjongg2.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
MarvWords.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
matchblock.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
minesandblocks.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
minimatchblock.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
oilbaron.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
publeep.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
shoot.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
shuttlesv4.3a.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
shuttlesv4.3b.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
shuttlesv4.5.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
shuttlev5.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
sirbouncealot.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
suckitup.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
sudoku.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
yatzee.exe;C:\MMFusion\Programs\Examples;BackDoor.JustFun;Deleted.;
A0046596.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP215;BackDoor.JustFun;Deleted.;
A0046778.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046808.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046809.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046810.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046811.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046812.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046813.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046814.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046815.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046816.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046817.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046818.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046819.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046820.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046821.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046822.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046823.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046824.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046825.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046826.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046827.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046828.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046829.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046830.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046831.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046832.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046833.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046834.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046835.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046836.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046837.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046838.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046839.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046840.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046841.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;
A0046842.exe;C:\System Volume Information\_restore{0FC2B444-0ADB-46E5-AE03-9B676EFA3458}\RP216;BackDoor.JustFun;Deleted.;

#4 quietman7

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Posted 05 March 2008 - 09:34 AM

If there are no more problems or signs of infection, you should Create a New Restore Point to prevent possible reinfection from an old one. Some of the malware you picked up could have been saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
  • Then use Disk Cleanup to remove all but the most recently created Restore Point.
  • Go to Start > Run and type: Cleanmgr
  • Click "Ok".
  • Click the "More Options" Tab.
  • Click "Clean Up" in the System Restore section to remove all previous restore points except the newly created one.

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#5 mhull

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Posted 05 March 2008 - 01:01 PM

Ok, thanks, the new restore files are done.

I have another brief question for you. I did the same process with DRWeb on my wifes desktop pc. There were some files that were moved to the DRWeb quarintine folder.

Are the bad files really quarintined, or must I do anything, like rename them?
Once again, thanks
Marvin

#6 quietman7

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Posted 05 March 2008 - 01:07 PM

When an anti-virus quarantines a file by moving it into a virus vault (chest), that file is essentially disabled and prevented from causing any harm to your system. The quarantined file is safely held there and no longer a threat until you take action to delete it. One reason for doing this is to prevent deletion of a crucial file that may have been flagged as a "false positive". If that is the case, then you can restore the file and add it to the exclusion or ignore list. Doing this also allows you to view and investigate the files while keeping them from harming your computer. Quarantine is just an added safety measure. When the quarantined file is known to be bad, you can delete it at any time.

To protect yourself against malware and reduce the potential for re-infection, be sure to read:
• "Simple and easy ways to keep your computer safe".
• "How did I get infected?, With steps so it does not happen again!".
• "Best Practices - Internet Safety for 2008".
• "Hardening Windows Security - Part 1 & Part 2".
• "IE Recommended Minimal Security Settings".
• "Block Unwanted Parasites with a Custom Hosts File" - Instructions for the MVPS HOSTS File
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