Video Screencast Help
Search Video Help Close Back
to help
New in the Rewards Catalog: Vouchers for "Symantec Technical Specialist" and "Symantec Certified Specialist" exams.

Trojan.FakeAV!gen24

Created: 18 Mar 2010 | 16 comments
GlobeTrekker's picture
0 0 Votes
Login to vote
Hi,

I keep getting the above Risk on the Auto-Protect, but when I do the Full Scan (after disabling System Restore), it always turned up nothing, guess it must be hiding under some temporary name.  I also cannot locate any FileName mentioned in the Auto-Protect.

I have attached 4 JPEG screen shots.

What should I do?

 

Much thanks
GlobeTrekker
 

Comments

Mick2009's picture
18
Mar
2010
0 Votes 0
Login to vote

Hi Globetrekker, Looks like

Hi Globetrekker,

Looks like the detections are in Windows' temporary locations.  I recommend booting into safe mode and running a Disk Cleanup (right-click the C drive, Properties, Disk Cleanup) - that will delete all the files that are in these temporary locations, as well as IE's temporary files, etc.  Perform a full system scan in safe mode, too.  Hopefully that will do the trick, as in safe mode Windows just loads a bare-bones version of itself, usually without any threats being loaded. 

Here's a good article that may help:  What Does "Risk was partially removed" Mean?  Generally these results happen when Windows has been "tricked" into protecting a malicious process.  A scan in safe mode is usually successful.

You may also wish to set some harmless program, like notepad.exe, to be the default for Windows to use to open .qef and .qsp files.  (that's the extension of the Trojan Horse that is being detected.)  If the threat does evade Symantec's attempts to stop / delete it, it might then be tricked itself into doing something harmless.

Final piece of advice: the screenshots show that you are using SAV, but what version?  Once this threat has been successfully deleted, I strongly encourage you to upgrade to SAV 10.1 MR8 or MR9, if you are running anything less recent. 

Let the forum know of your progres, if time allows!

Thanks and best regards,

Mick

With thanks and best regards,

Mick

GlobeTrekker's picture
21
Mar
2010
0 Votes 0
Login to vote

Thank you Mick for your

Thank you Mick for your assistance,

I have done what you suggested but it is still lurking around.

I clean up my temporary files, associated .QEF and .QSP files to Calculator and Paint Brush respectively and restarted in safe mode, did a full scan. Restart my laptop and just open up one web page pointing to www.google.com

and almost every 10 minute the Auto Protect will catch one or two attempts.

And I think my SAV is already 10.1 MR 8.

Please refer to Scan History, version, Auto Protect, File Association.

What does this virus do anyway, I read some forum that it "steals credit card details and login password" etc, is this true?
If Auto Protect caught it, does it mean that it is not sending anything out from my laptop?

What should I do next?

For your further advise, regards
LT

SV_Version.jpg Symantec_AntiVirus_Scan_Histories_20100321.jpg Auto_Protect_Results_20100321.jpg File_Association_QEF_QSP_20100321.jpg
snekul's picture
21
Mar
2010
1 Vote +1
Login to vote

My hunch would be that

My hunch would be that something that is currently undetected is constantly placing files in the temp directory.  I'd try using the latest rapid release definitions and doing a full scan.

Eric C. Lukens IT Security Policy and Risk Assessment Analyst University of Northern Iowa

Mick2009's picture
22
Mar
2010
0 Votes 0
Login to vote

I Agree with Snekul / Advice

Hi LT,

If the AP detections constantly re-occur, and the files have new names each time, then it is probable that something currently undetected is re-creating them.  Here's the first document to read: Best practices for responding to active threats on a network

It might be best, at this point, to contact Symantec Technical Support for assistance in locating that undetected threat.  (Of course, if you are familiar with the Sysinternals tool Process Monitor, you may be able to determine what process is creating them yourself.... ) 

The first thing they will likely ask you to do is run a diagnistic which will examine the computer's load points.  Though you have SAV installed (and a decent version of SAV, too) the SEP Support Tool will run and help to find suspicious files.  These can then be submitted to Security Response.  Symantec will examine the suspicious fiels and develop new signatures against them, if necessary.

Feel free to download and run that tool yourself, if you like, and see if it highlights any suspicious files.  If not, give Tech Support a call.  One way or another, let's get to the bottom of this outbreak.

Please do let the forum know of your progress!

Thanks and best regards,

Mick

With thanks and best regards,

Mick

Brickman's picture
27
Mar
2010
0 Votes 0
Login to vote

Trojan.FakeAV!gen24

Antivirus scan detected Trojan.FakeAV!gen24 - followed removal instructions to update virus definitions, turned off systems restore, booted in safe mode (both with and without netwrking), and each time scan detected virus - tried to repair, but no luck; tired to quarantine but no luck, and tried to remove, but no luck.  Have repeated this process several times.

Any one have any thoughts on what to do?

Bob

Frosty's picture
28
Mar
2010
0 Votes 0
Login to vote

Maybe try Malwarebytes or

Maybe try Malwarebytes or HitmanPro ... I've had reasonable success with those in the past in removing threats from PCs.

Grant_Hall's picture
28
Mar
2010
1 Vote +1
Login to vote

You should submit the files

You should submit the files to Symantec so we can make a anti-virus definition specifically for your strain of the virus. Check the guide below for instructions:

What to do when you suspect that a Symantec AntiVirus product is not detecting viruses

http://service1.symantec.com/support/ent-security.nsf/854fa02b4f5013678825731a007d06af/73537d3ec91e9d3288256a220027acf0?OpenDocument

Thanks
Grant

Please don't forget to mark your thread solved with whatever answer helped you : )

Mick2009's picture
28
Mar
2010
0 Votes 0
Login to vote

In the rare cases where even

In the rare cases where even a full system scan in safe mode does not have permissions to delete a malicious file, there are procedures and tools that Symantec Technical Support can recommend which will remove the threats.  For those, though, it is best to to contact Support rather then the volunteer community forum.

Thanks and best regards,

Mick

With thanks and best regards,

Mick

Mick2009's picture
31
Mar
2010
0 Votes 0
Login to vote

New FakeAV Blog Post

Just a quick link for a new Security Response blog post: Back to Basics with Fake AV

Might be of interest.  Symantec is continuing to add protection against new variants that are submitted and is monitoring the trends.  More articles will be posted in the future. 

Thanks and best regards,

Mick

With thanks and best regards,

Mick

timquinnsr's picture
24
Jun
2010
0 Votes 0
Login to vote

Trojan.Fave.AV virus

We have found that if the computer is infected with the Trojan.Fake.AV!GenXX and none of the above tricks work - Try this:

1.  Shut computer down and unplug
2.  Open the case and remove the hard disk drive
3.  Slave the hard disk drive in another computer (WARNING - make sure you have your anti-virus on the second computer completely up to date.  I gave this information to someone else and the anti-virus in his second computer was months out of date!  Yup...)
4.  Scan the infected drive with MalwareBytes (fully updated).  Symantec will also scan the files MalwareBytes scans since MalwareBytes opens each file to scan it.

This has worked for use 98% of the time.  We have never had a virus infect the second computer (yet), and have been doing this for over a year now.  We have several hundred computers with users from all walks of life and intelligence and we have infected computers on a regular basis (NOTE TO SYMANTEC - even though Symantec Endpoint Protection is running on all computers).

Good Luck

Tim

Thomas K's picture
24
Jun
2010
1 Vote +1
Login to vote

As a last resort try the

As a last resort try the Norton Power Eraser tool.

The Norton Power Eraser uses aggressive methods to detect  threats, there is a risk that it can select some legitimate programs for removal. You should use this tool very carefully, and only after you have exhausted other options.

http://security.symantec.com/nbrt/npe.asp?lcid=103...

Mick2009's picture
25
Jun
2010
0 Votes 0
Login to vote

Info on FakeAV

Fake AV / missleading app / smitfraud / scareware / rougeware is an area that Symantec is very actively investigating.  In October 2009, a white paper was made public on the topic. The Symantec Report on Rogue Security Software is an in-depth analysis of rogue security software programs and how they affect users. The report includes an overview of these programs, how they work, their risk implications, various distribution methods and innovative attack vectors.

To learn more, please download and read the report or listen to the podcasts on the subject. http://www.symantec.com/business/theme.jsp?themeid=threatreport or  http://www4.symantec.com/Vrt/wl?tu_id=XuOB125692283892572210

You may also find some excellent info on FakeAV in these forum threads:

https://www-secure.symantec.com/connect/forums/sep-and-fakeav
https://www-secure.symantec.com/connect/forums/fakeav-webcast-app-and-device-control-examples

https://www-secure.symantec.com/connect/forums/question-fakeav-and-proactive-threat-protection

Hope this helps! Please do keep the forum up-to-date with your progress.

Thanks and best regards,

Mick

With thanks and best regards,

Mick

Richard Gurley's picture
30
Nov
2010
0 Votes 0
Login to vote

Can't Catch the Fake

I still haven't figured out why Symantec just can not catch the fake AV.  I mean Malware-bytes and the others catch and get rid of it - as to where Symantec may quarantine it but doesn't get rid of it. And 90% of the time it is in their list of know infections.  Is there any type of help for this???????

Thomas K's picture
30
Nov
2010
0 Votes 0
Login to vote

Are you running the SEP with

Are you running the SEP with the recommended security settings? Richard, next time please start a new thread for your issue.

 

Security Response recommends the following Scan Settings

 

Antivirus Security Setting Default Setting High Security Policy Security Response Recommendation
Lock settings Some Some All
Remediation: terminate processes No No Yes
Remediation: terminate services No No Yes
Auto-Protect action taken for security risks Quarantine/Log Quarantine/Log Quarantine/Delete
Network Auto-Protect Disabled Enabled Enabled
Bloodhound Level Default (2) Default (2) Default (3)
SEP Startup System Start System Start System Start
Auto-Protect Scan Modify and access Modify and access Modify and access

Security Response recommends the following setting changes to Truscan for best protection

 

Truscan Default Setting Security Response Recommendation
Scan Sensitivity 9/Low 100
Action on Detection Log Terminate
Scan Frequency 1:00 00:15

http://www.symantec.com/business/support/index?pag...

 

Also see our "Security Best Practices"  - http://www.symantec.com/business/theme.jsp?themeid...

Brian81's picture
30
Nov
2010
0 Votes 0
Login to vote

Yes, an application and

Yes, an application and device control policy will stop this.

MackSRQ's picture
25
Apr
2011

MalwareBytes

I have had Trojan.FakeAV all over my organization and the only thing that get completely rid of it is Malwarebytes.

Symantec has been detecting it but not removing it completely.

SEP 11.6100.645