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Description
You can apply this operation either as a Filter or Create field operation:
Filter | Checks for the presence of one or more values in a given string . The filter will identify those strings or series (array, set, or map), returning those containing at least one of the indicated values. |
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Create column | Creates a Boolean column that shows true when at least one of the indicated values is present in the a given string or series (array, set, or map). |
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Case sensitive This operation is case sensitive. Use the Contains - case insensitive (weakhas) operation if you need to apply this operation ignoring case. |
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How does it work in the search window?
Select Filter / Create field in the search window toolbar, then select the Contains operation. This operation requires at least two arguments (Value and contains). Optionally, you can add as many or also arguments as you need:
Argument | Data type |
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Value mandatory | string, array, set, map |
contains mandatory | string |
or also | string |
If you use the Create field operation, the data type of the values in the new field is boolean (true or false).
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You can also use the Is in (`in`, <-) operation to check for the presence of values in a given string, the only difference is the order of the arguments. The Is in operation requires you to first indicate the value(s) to check and then the general string (value IS IN string), and the Contains operation works the other way around (string CONTAINS value). |
Example
In the siem.logtrust.web.activity table, we want to get only the events where the srcHost contains 36, 37, or both. To do it, we will apply a Filter using the Contains (has) operation.
The arguments needed for the filter are:
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Click Filter data and you will see the following result:
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Click Create field and follow the same steps to add a new Boolean field that shows true when the values in the srcHost field contain 36, 37, (or both).
How does it work in LINQ?
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string_general -> string_value- Note that this format does not admit more than two arguments. Use the below format if you need to add several arguments.has(string_general, string_value1, string_value2...)
Examples
You can copy the following LINQ script and try the above example on the demo.ecommerce.data table:
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from demo.ecommerce.data where has(timestamp, "24", "25") |
And this is the same example using the Create field operation:
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from demo.ecommerce.data select has(timestamp, "24", "25") as has_24_or_25 |
You can also apply this operation using the -> operator. However, this syntax does not admit more than two arguments, so you can only add a single value to be searched in the selected string field. In the following examples, we want to detect events containing 24 in the timestamp field:
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from demo.ecommerce.data where timestamp -> "24" |
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