In my LAB Test,
Here is what I did,
++ Created a data pattern with CC (10) and SSN (10) to match SSN or CC
++ Under Data Filtering Profile, added the pattern with file type as "text/html" with Alert threshold as 1
++ Sent an email with a file "TESTssn.dll"
++ It is hitting the rule
++ It seems Firewall is detecting the DLL files under file type "text/html"
How I created the file,
a) Created a text file with some random SSN number in it
b) Changed the extension from .txt to .dll
Is this expected? or its False positive?
Whenever we try to open a .dll file, windows by default select HTML or we can open it as a text file. I am not sure if this information is related.
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