IDP Generic Infection

By ‘legitimate program,’ I mean that I have used it at home for work for years-It is an automated dialer program. Every time there has been an update, Avast detects it as suspicious so that is why I ‘restored and added it as an excursion’ earlier since updates occur on a regular basis.

Even though Avast initially detected the file as suspicious, it is clean-Correct?

I still do not understand what is meant by ‘the same digital signature’ then.

Correct!

It is similar to regular personal signature. Imagine you have a world much like ours, where every paper you write, you sign with your signature. This signature is genuine, ie. it is impossible to forge someone else’s signature. Now there is a company that has the signature database and with it, copies of all the papers that were signed by the signature. If I, as an exmployee of that company, then decide that “this person is trustworthy, he never lies on his papers and his papers are harmless”, I may keep a “clean” mark next to his signature in your database, and then if someone comes to me and asks about this unknown paper that has this signature, I will tell him “I have never seen this paper, but this signature has a very good record, I trust it even though I didn’t even have time to read what is on the paper”.

Now do the following substitutions: paper → file, signature → digital signature, company → Avast. That is how we deal with digital signatures.

Did I explain it a little bit? :slight_smile:

HonzaZ:

I apologize but, by the ‘same digital signature,’ are you ‘trying’ to state that you marked the other 31 submitted files as ‘clean’ as well, so that detection from those specific files will never be triggered on files signed by their specific signature in the future and Avast will not detect them as suspicious?

Correct!
I marked 31 other (previously) submitted files (with the very same digital signature) clean, so no other detection (IDP or other) will be ever triggered on them.
Furthermore, I marked the digital signature itself clean, which means new (unknown) files with the same signature will not be detected by IDP in the future.

What confused me (and still does) is what the ‘same’ digital signature means.

Since each user’s uploaded file is ‘different,’ how can the digital signature be the same?

It is the same with real signature, really. If you personally sign 100 different papers, someone (for example I) can still prove the signature is the same.
And it is the same with files - one signature can sign unlimited number of files, and still the signature is the same.
More info for example here: https://en.wikipedia.org/wiki/Digital_signature but I am sure there are many more explanations on the Internet :wink:

By the ‘same digital signature,’ are you saying that all 32 files were marked as clean by you and ‘clean’ is the digital signature?

If that is not what it means, what was the specific digital signature used for all 32 files, who attached the digital signature, and what is the ‘translation’ of that signature? :slight_smile:

I marked both the 32 files AND the digital signature as clean, so all Avast will consider this when creating detections.

You can view the digital signature here: https://virustotal.com/en/file/80e2673f2989a3b81df5ab12a2ac9e1d9f0e1c77ad4eb342895af5bd3eddf2ee/analysis/1487835120/ if you click on “File detail” tab. The digital signature is always issued by the “creator” of the file (in this case, “Gravis Marketing”).

I understand:

All 32 files were marked as clean by you
All 32 files were added to the Cleanset
The ‘digital signature’ is issued by the creator, in my case, Gravis Marketing!

What you are ‘not’ being clear about is:

How were all 32 files signed with the ‘same digital signature’ when the other 31 files submitted by others were not Gravis Marketing-related but were different creators!

By ‘same digital signature,’ do you mean that the other 31 files were also IDP? If so, the creators of the other 31 files would ‘still’ be different so the digital signature would be different.

I never said that! On the contrary - all files were signed by the same signature (“Gravis Marketing”).

Are you saying that there were 31 other files with the same ‘Gravis Marketing’ digital signature in the database of files (so I was not the first one to report this ISP detection). As a result, you added all 32 files to the Cleanset so that detection will never be triggered on files signed by Gravis Marketing in the future?

Follow-up Questions:

-Did you mark my file upload as ‘clean’ before or after checking the database of files?

–Was my file added to the Cleanset before (or along with) the other 31 files signed by 'Gravis Marketing?

Correct!

After.

Along with.

I understand now that my file and the 31 other files with the ‘Gravis Marketing’ digital signature were added to the ‘Cleanset’ and the digital signature itself was marked as clean but ‘how’ does my version of Avast ‘know’ not to detect this signature as a threat in the future?

Will it take effect the next time the virus definition is updated?

Hello,
I also have a false positive detected as ‘IDP.Generic.39515dfb2d8c.3.2’ with ‘Vole Media CHM’ software.
I sent a report.
Thank

Hello,

I seem to have a similar problem with a navigation tracking tool I use for tracking my truck: Geo Navi.
I’ve been using this program since 2013 with no problems until my last update of the Avast software.

Now it detects it and blocks one of it’s components: file named events handler.exe with the message reading IDP: Generic
I have uploaded the file to virustotal and here is the link to the analysis results:

https://www.virustotal.com/pl/file/6fc5b4da63a235ca743ea219360b2f426ffe17fc84fcc0021e34b013732873e4/analysis/1492376150/

Is it a false positive?

Or is the GeoNavi software bugged?

Report it >> https://forum.avast.com/index.php?topic=14433.msg1289438#msg1289438