I wonder if i helped a friend with this research...they track you, (of course in TOR) because they add a mdf. file written in visual studio (of course) on your tables database (I'm not sure if its really temporary) ...so...wherever they are search them in here:

Compare MySQL databases & automatically create schema & data change scripts/migrations rapidly (up & down SQL supported) for database version control. Supports *most* migration tools.https://github.com/DBDiff/DBDiff