Special Characters
When not using regular expressions, the bracket characters enclosing <Value> entries indicate that the text should be matched literally (for example with a set amount of whitespace, or an entire line of a file.)
This can also be used to test for nothing:
<Value>[""]</Value>
or NOT nothing
<Value>[!""]</Value>
Regular Expressions
Basic regex pattern matching can be used in signature content. When regex is detected by ConfigOS remediation of the rule will no longer be possible.
...