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It's possible to block custom file hash-256 in Palo alto.
Please let me know how I can check the respective file hashes disposition at a wildfire, either it is in block or not.
Here is below the file hashes need to know for disposition.
You don't block by hash, you block by file pattern using the Antivirus engine, and a signature would exist if the sample is identified by WildFire as malicious.
You can check what signatures produce coverage by querying the SHA256 hashes in ThreatVault https://threatvault.paloaltonetworks.com/
If there is a malicious file that needs coverage, submit it to WildFire at https://wildfire.paloaltonetworks.com/
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