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I have a trojan virus. I have attempted to use these forums, but to no avail.


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10 replies to this topic

#1 terryfunku

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Posted 20 January 2011 - 12:41 AM

I have a trojan that Stinger calls "FakeAlert!PCVirusless" lurking in C:\Windows\System32\atl71.dll.

I cannot even find that said file, only one close in name, atl.dll.

I have attempted to delete this virus with McCaffee (worthless program), Malwarebytes Anti-Malware, Spybot Search and Destroy, Stinger, and even tried the assistance of RKill. RKill can't even locate the damn thing, McCaffee tells me it's there but won't tell me where and can't remove it, and Stinger tells me what it is and where it found it, but it can't remove it and the exact file name it gives me cannot be found. I have tried to do many of the things this forum has suggested except for the HiJackThis program. That program, which I have downloaded, is completely foreign to me.

Any help would be greatly appreciated.

Edited by terryfunku, 20 January 2011 - 12:42 AM.


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#2 Hayton

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Posted 20 January 2011 - 06:18 AM

Well, I'm running McAfee's Stinger right now, and it's just found (it says) the fakealert!pcvirusless Trojan in file C:\Windows\System32\atl71.dll - and deleted the file. I wanted to know what this Trojan was, so I Googled for it - and found this thread. My main concern was that this might have been a false positive, but now I'm thinking maybe there really was something there. I've had no symptoms of any malware infection, so I would never have known I had this Trojan were it not for the Stinger.

It seems to work (for me anyway), so if you haven't tried it you might want to give it a go. It's free, at least.

One thing : I still don't know what this (alleged) Trojan does. Anyone know?

#3 boopme

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Posted 20 January 2011 - 10:46 AM

Hello. Is this an XP system?
The process (atl71.dll.) ATL Module for Windows (Unicode) belongs to the software Microsoft® Visual Studio .NET by Microsoft Corporation (www.microsoft.com).

Description: File atl71.dll is located in the folder C:\Windows\System32. The file size on Windows XP is 89088 bytes.
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. The program is not visible. Program can be removed using the control panel Add\Remove programs applet.

Filenet


Please run an online scan
Please perform a scan with Eset Online Antiivirus Scanner.
This scan requires Internet Explorer to work. Vista/Windows 7 users need to run Internet Explorer as Administrator.
To do this, right-click on the IE icon in the Start Menu or Quick Launch Bar on the Taskbar and select Run As Administrator from the context menu.
  • Click the green Posted Image button.
  • Read the End User License Agreement and check the box:
  • Check Posted Image.
  • Click the Posted Image button.
  • Accept any security warnings from your browser.
  • Check Posted Image
  • Check Remove found threats and Scan potentially unwanted applications. (If given the option, choose "Quarantine" instead of delete.)
  • Click the Start button.
  • ESET will then download updates for itself, install itself, and begin scanning your computer.
  • If offered the option to get information or buy software at any point, just close the window.
  • The scan will take a while so be patient and do NOT use the computer while the scan is running. Keep all other programs and windows closed.
  • When the scan completes, push Posted Image
  • Push Posted Image, and save the file to your desktop as ESETScan.txt.
  • Push the Posted Image button, then Finish.
  • Copy and paste the contents of ESETScan.txt in your next reply.
Note: A log.txt file will also be created and automatically saved in the C:\Program Files\EsetOnlineScanner\ folder.
If you did not save the ESETScan log, click Posted Image > Run..., then type or copy and paste everything in the code box below into the Open dialogue box:

C:\Program Files\ESET\EsetOnlineScanner\log.txt
  • Click Ok and the scan results will open in Notepad.
  • Copy and paste the contents of log.txt in your next reply.
-- Some online scanners will detect existing anti-virus software and refuse to cooperate. You may have to disable the real-time protection components of your existing anti-virus and try running the scan again. If you do this, remember to turn them back on after you are finished.

NOTE: In some instances if no malware is found there will be no log produced.
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

#4 terryfunku

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Posted 20 January 2011 - 05:02 PM

Thank you, boopme!

That found a trojan, but in a different location:

C:\Users\Andy\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\28\26d395dc-3f17c9e0 a variant of Java/TrojanDownloader.OpenStream.NAU trojan deleted - quarantined

I'm operating Windows 7, by the way. I should have stated that in my first post.

I'm about to run Stinger again and see if anything comes up. I'm going to drop McCaffee as soon as I know this is resolved and put Kaspersky on, as it allows me to use it on up to three machines. I've only been using McCaffee because it came with the Dell desktop that I purchased back in September. After this, I have no faith in McCaffee. I've used Kaspersky for 4 years and it's always kept trojans out. McCaffee can't keep them out OR help get rid of them. What a joke.

Edited by terryfunku, 20 January 2011 - 06:08 PM.


#5 terryfunku

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Posted 20 January 2011 - 05:59 PM

Alright. Since that trojan was eliminated by ESET Online Scanner, my Windows Explorer lag (new windows taking a while to open, right clicking on folders causing Windows Explorer to freeze for a few minutes) has gone away. That's awesome.

But, there is a still a trojan being found by Stinger:

Posted Image

What the hell? I cannot find the file atl71.dll! I understand that it is not visible and can be removed, but how do I do that and are there any precautions I should take or risks involved with doing so? Can I remove it and cleanly re-install it without affecting my computer's stability?

Edited by terryfunku, 20 January 2011 - 06:15 PM.


#6 boopme

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Posted 20 January 2011 - 08:11 PM

Hi, did you update MBAM ( Malwarebytes ) before that scan?
If SpyBot's Teatimer is running it may prevent the fix.

Lets show hidden files and run Stinger and MABM again. How to show hidden files in Windows 7

Rerun MBAM (MalwareBytes) like this:

Open MBAM in normal/regular mode and click Update tab, select Check for Updates,when done
click Scanner tab,select Quick scan and scan (normal mode).
After scan click Remove Selected, Post new scan log and Reboot into normal mode.


For later use.

Running the McAfee Consumer Product Removal tool (MCPR.exe) removes all 2005, 2006, 2007, 2008, 2009, and 2010 versions of McAfee consumer products.
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

#7 terryfunku

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Posted 20 January 2011 - 09:57 PM

Malwarebytes' Anti-Malware 1.50.1.1100
www.malwarebytes.org

Database version: 5563

Windows 6.1.7600
Internet Explorer 8.0.7600.16385

1/20/2011 9:55:21 PM
mbam-log-2011-01-20 (21-55-21).txt

Scan type: Quick scan
Objects scanned: 157933
Time elapsed: 2 minute(s), 32 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)



If Stinger keeps finding that nonexistent file and recognizing it as a trojan virus while MalwareBytes does not, what does it mean?

#8 boopme

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Posted 20 January 2011 - 10:21 PM

This is possibly a False positive. We should double check it before we take action.

Lets' upload this file for a second opinion on what it actually is.. IF you can get it from the Stinger scan.

Please make sure that you can view all hidden files. Instructions on how to do this can be found here:
How to see hidden files in Windows

Please click this link-->Jotti

When the jotti page has finished loading, click the Browse button and navigate to the following file and click Submit.
<filepath>suspect.file

Please post back the results of the scan in your next post.

If Jotti is busy, try the same at Virustotal: http://www.virustotal.com/


NOTE:
For submission to a specific anti-virus vendor see Submitting Virus Samples: How to Submit a Virus.
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

#9 terryfunku

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Posted 20 January 2011 - 10:30 PM

Again, thanks for your time, Boopme.

Jotti results:

Filename: atl71.dll
Status:
Scan finished. 0 out of 19 scanners reported malware.
Scan taken on: Wed 19 Jan 2011 21:28:17 (CET) Permalink


So, I assume that this means that Mcafee and Stinger were/are reporting a false positive?

Edited by terryfunku, 20 January 2011 - 10:36 PM.


#10 boopme

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Posted 20 January 2011 - 10:37 PM

That's what I see too. Gotta love that Mcafee.
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

#11 terryfunku

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Posted 20 January 2011 - 10:52 PM

Christ. I am uninstalling McAfee as soon as I get done with this post.

Boopme, you're the best. You guys are like doctors in that most of us only bother you when we have an ailment. I wish I understood computers to the extent that I could give back to this community or keep your attention with some healthy dialog, but I'm a veteran novice at best.

Anyone who comes across this page from a google search here is my contribution to this thread:

GET RID OF MCAFEE! I am not kidding. False positives (with no mention of their frequency), misleading reports, and no file path to the supposed problem file (had to use their additional Stinger program which also gave a false positive, but it finally gave me file path). Although there was no virus on my computer, this still made me lose some sleep. Use Kaspersky, not McAfee. I've used Kaspersky for 4 years. It blocks trojans, suspected trojans, all other viruses, and is crystal-clear on letting you know where your problems are coming from. Plus, each purchase of Kaspersky allows you to use it on up to 3 computers.

Edited by terryfunku, 20 January 2011 - 10:54 PM.





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