Hello,

 

Could someone please explain the exact flow of how each type of signature file 
is used when scanning a file?  I'm guessing that when a file is scanned, it is 
first checked against the Md5 signatures within the HDB files.  If that passes, 
it is then checked against the Md5's of the FP files to see if it needs to be 
ignored.  After that, the scan proceeds to check the file with the other 
remaining signature types.  Is this flow correct?

 

 

The reason I ask is that we have recently seen some critical Windows files be 
detected by HDB signatures, and adding that file's Md5 to the an FP file does 
not prevent the file from being detected.  We can of course resolve the issue 
by removing the offending HDB signatures, but wanted to know the exact flow of 
a scan and ensure that was the reason FP's did not work versus HDB's.  Thank 
you,

 

 

 - Matt Forbis

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