Fix regression: missing string coercion for old-style negated filters #263
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v5.5.0 introduced regression for negated boolean old-style filters. Because negation was done by adding "!", filter matching function was doing an implicit header value conversion to string.
This behavior was unintentionally changed by v5.5.0 as new-style (Mongo-style) filters don't perform any type coercions.
One of the affected components by this regression is Drakvuf Sandbox that uses
{"execute": "!False"}to filter out all samples that should not be executed. These samples are marked with{"execute": False}header, so conversion to string in this case is expected.