Virus/Win32.WGeneric.aeulpb (297499053)

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Virus/Win32.WGeneric.aeulpb (297499053)

L0 Member

Hi Community,

 

We are seeing this signature in our environment for ms-ds-smbv3 application. PAN is marking the internal traffic as 'virus' before resetting it on both ends.

 

Any suggestions what would be the investigation process for it. What are we looking for here?

 

Is it a FP?

 

- Sahil

5 REPLIES 5

L4 Transporter

Hello @Sahil_Arora 

 

This signature is been disabled.

 

 

Thanks

Himani Singh

L0 Member

We had five PDFs flagged as Virus/Win32.WGeneric.baxxxx in the last two weeks.  Not usually an issue, but they are part of a batch transfer process that fails when it happens.

 

Odd thing is these files have been around for a while. one from 2020 and one from 2019.

 

Any idea why now?

Thanks

Have also seen about half a dozen or so false positives over the past week, all Virus/Win32.WGeneric.xxxxxx.  Working around them with exceptions, but it is getting a bit tedious.  For one of the threat IDs that we saw flagged several times I went ahead and submitted it as a FP and the signature for it was also removed.  For all the the triggered threat IDs, they were created within the last day or so of the first FP detection.  Does anyone have any insight as to what is going on with the signatures lately?

Per TAC, the reason for the sudden increase in FPs is the change described at

https://live.paloaltonetworks.com/t5/customer-resources/new-pdf-antivirus-signature-algorithm/ta-p/3...

 

Still unsure as to what if any changes they are making to decrease the FP rate.

I guess it makes sense now. We are also seeing increase in PDF detections which are regular files and have been there in file share forever.

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