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False Positive? Or: Trojan.generic.154152


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#1 Mike T

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Posted 13 April 2008 - 05:30 PM

I run Trend Micro 2007 w/ Win XP (patches are up to date). Trend-Micro indicated I am clean. I then ran Bitdefender's on-line scan. It listed 9 items that were infected. Here are the files/actions taken by Bitdefender:

C:\Documents and Settings\Ethan\crap.1201817113.old=>(Embedded EXE o) Infected with: Trojan.Generic.154152
C:\Documents and Settings\Ethan\crap.1201817113.old=>(Embedded EXE o) Deleted
C:\Documents and Settings\Ethan\crap.1201817113.old Update failed
C:\Documents and Settings\Ethan\crap.1201824156.old=>(Embedded EXE o) Infected with: Trojan.Generic.154152
C:\Documents and Settings\Ethan\crap.1201824156.old=>(Embedded EXE o) Deleted
C:\Documents and Settings\Ethan\crap.1201824156.old Update failed
C:\Documents and Settings\Ethan\matrix.dll Infected with: Trojan.Generic.154152
C:\Documents and Settings\Ethan\matrix.dll Deleted
C:\Documents and Settings\Ethan\matrix.dll.1201824155.old Infected with: Trojan.Generic.154152
C:\Documents and Settings\Ethan\matrix.dll.1201824155.old Deleted
C:\Documents and Settings\Liz\crap.1201823185.old=>(Embedded EXE o) Infected with: Trojan.Generic.154152
C:\Documents and Settings\Liz\crap.1201823185.old=>(Embedded EXE o) Deleted
C:\Documents and Settings\Liz\crap.1201823185.old Update failed
C:\Documents and Settings\Liz\matrix.dll Infected with: Trojan.Generic.154152
C:\Documents and Settings\Liz\matrix.dll Deleted
C:\System Volume Information\_restore{00CB71DE-F7FE-439B-B18F-DB8EB072F823}\RP76\A0017549.dll Infected with: Trojan.Generic.154152
C:\System Volume Information\_restore{00CB71DE-F7FE-439B-B18F-DB8EB072F823}\RP76\A0017549.dll Deleted
C:\System Volume Information\_restore{00CB71DE-F7FE-439B-B18F-DB8EB072F823}\RP76\A0017550.old Infected with: Trojan.Generic.154152
C:\System Volume Information\_restore{00CB71DE-F7FE-439B-B18F-DB8EB072F823}\RP76\A0017550.old Deleted
C:\System Volume Information\_restore{00CB71DE-F7FE-439B-B18F-DB8EB072F823}\RP76\A0017551.dll Infected with: Trojan.Generic.154152
C:\System Volume Information\_restore{00CB71DE-F7FE-439B-B18F-DB8EB072F823}\RP76\A0017551.dll Deleted

The "matrix.dll" files were deleted/purged in the scan, but 3 copies of the "crap.####.old" were still in the user directories. I scanned them with Trend, and it says they're ok (I quarantined them thereafter).

Any thoughts?

Thanks!

Mike

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#2 boopme

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Posted 13 April 2008 - 09:12 PM

You look clear. Do these 2 things and clear up the trailing junk and whats left in those restore points.

Please download ATF Cleaner by Atribune. (This program is for XP and Windows 2000 only)Double-click ATF-Cleaner.exe to run the program.
Under Main "Select Files to Delete" choose: Select All.
Click the Empty Selected button.
If you use Firefox browserClick Firefox 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.
If you use Opera browserClick 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.
For Technical Support, double-click the e-mail address located at the bottom of each menu.
**************
Now you should Set 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 System Restore is a protected directory, your tools can not access it to delete these bad files which sometimes can reinfect your system. 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.
  • Then 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.

How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#3 Mike T

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Posted 14 April 2008 - 11:41 PM

Ran ATFcleaner, set a new restore point and purged the old ones. I'm curious why Trend missed these files, but Bitdefender's on-line scan picked them up? It's also curious that the "infected" files were only under my son's and wife's users. I suspect this may be related to Apple's iTunes software. They both use it, but I do not.

I run daily scans and check for odd activity in the AV logs, but havn't seen anything recently. Keeping computers running smoothly - and cleanly - is a big pain in the a$$ (I maintain 3). I REALLY appreciate that there are people like you to help me out! I'm a civil engineer and fairly computer savvy. Makes me wonder how all of the clueless people's computers stay running - they're probably all screwed up but no one realizes it.

Are we good?

A BIG thank-you! :)

Regards,

Mike

#4 quietman7

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Posted 15 April 2008 - 08:53 AM

Anytime you suspect a file may be a False positive, get a second opinion before taking action.

Go to jotti's virusscan or virustotal.com. In the "File to upload & scan" box, browse to the location of the suspicious file(s) and submit (upload) it for scanning/analysis.
-- Then post back with the results of the file analysis.
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#5 Mike T

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Posted 15 April 2008 - 05:31 PM

Q-man: I'd previously quarantined the files - just in case. Scanned one of them with the Jotti website a few moments ago, and it came up dirty on a couple of the different scans.

Guess I'll be doing multiple weekly scans from now on. Will also do a little more investigating - I think my Java is out-dated...

Kind of takes all of the fun out of my weekend computer play time...

Mike

#6 boopme

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Posted 15 April 2008 - 08:00 PM

Hi, would you please post the Jotti results.

If your Java is out of date. Older versions have vulnerabilities that malicious sites can use to exploit and infect your system. Please follow these steps to remove older version Java components and update:
  • Download the latest version of Java Runtime Environment (JRE) Version 6 and save it to your desktop.
  • Scroll down to where it says "Java Runtime Environment (JRE) 6 Update 5...allows end-users to run Java applications".
  • Click the "Download" button to the right.
  • Select your Platform: "Windows".
  • Select your Language: "English".
  • Read the License Agreement, and then check the box that says: "Accept License Agreement".
  • Click Continue and the page will refresh.
  • Click on the link to download Windows Offline Installation and save the file to your desktop.
  • Close any programs you may have running - especially your web browser.
  • Go to Start > Settings > Control Panel, double-click on Add/Remove Programs and remove all older versions of Java.
  • Check (highlight) any item with Java Runtime Environment (JRE or J2SE) in the name.
  • Click the Remove or Change/Remove button.
  • Repeat as many times as necessary to remove each Java versions.
  • Reboot your computer once all Java components are removed.
  • Then from your desktop double-click on jre-6u5-windows-i586-p.exe to install the newest version.

How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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