We have ClamAV installed on Ubuntu. On Ubuntu, the rules can be specified or modified under the directory /var/lib/clamav/main.cvd. However,  We are trying to consume ClamAV rules from the FireEye as shown below link which is .ldb file and we are trying to convert to .cvd format. 

Could you please let us know the steps on how to convert the .ldb to .cvd? Or how to consume the .ldb file in Ubuntu? 

FireEye: https://github.com/fireeye/red_team_tool_countermeasures/blob/master/all-clam.ldb

Thank you for your time and consideration.
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