Avast WEBforum

Other => Viruses and worms => Topic started by: WebMaximus on February 03, 2012, 08:47:04 PM

Title: Possible false alarm...how to know for sure?
Post by: WebMaximus on February 03, 2012, 08:47:04 PM
Downloading an addon program for MS Flight Simulator X called GSX from here -> http://www.fsdreamteam.com/products_gsx.html triggers an Avast! warning that the file is infected by a Trojan Horse called win32:Downloader-MUI [Trj]

I downloaded the same file a couple of days ago without any warnings from Avast! I asked about this in the support forum for the product and the developer was positive this was only a false alarm and adviced me to simply turn Avast! OFF before downloading and installing the software but I thought I want to ask in here first...

Is there any way for me to verify if this file I'm trying to download really is infected or if it's simply a false alarm?
Title: Re: Possible false alarm...how to know for sure?
Post by: WebMaximus on February 03, 2012, 08:57:28 PM
Recieved another answer as below in the support forum for the product...

There's an easy way for you to be sure the file is the same as we distribute it, and is to check its Digital Signature, by right-clicking on the executable file, select "Properties", select the "Digital Signature" tab, click on "Details" and check if it's valid.

...and doing this the digital signature is reported as OK so I guess this confirms this is a false alarm by Avast?
Title: Re: Possible false alarm...how to know for sure?
Post by: Asyn on February 03, 2012, 08:58:57 PM
...and doing this the digital signature is reported as OK so I guess this confirms this is a false alarm by Avast?

You can report a possible FP here: http://www.avast.com/contact-form.php?loadStyles
Title: Re: Possible false alarm...how to know for sure?
Post by: WebMaximus on February 03, 2012, 10:23:34 PM
Thanks for the link, just reported the file as a possible false alert.
Title: Re: Possible false alarm...how to know for sure?
Post by: Asyn on February 03, 2012, 10:25:51 PM
Thanks for the link, just reported the file as a possible false alert.

You're welcome.
Title: Re: Possible false alarm...how to know for sure?
Post by: polonus on February 03, 2012, 10:36:36 PM
Hi WebMaximus and Asyn,

Here it is found clean, also by avast: http://vscan.urlvoid.com/analysis/056ab2d7bbf55507585031f37ca8edd1/cHJvZHVjdHMtZ3N4LWh0bWw=/
Given clean here as well: -http://jsunpack.jeek.org/?report=4da4fd7e9a6fb92d7085bfc87f92844c30182db4 (only visit this jsunpack link when security savvy, with ample script protection and in a VM)

polonus