Authentic VMware Certification Exam 5V0-93.22 Questions Answers

The company banned list is a feature of VMware Carbon Black Cloud Endpoint Standard that allows administrators to prevent specific files from running on the endpoints by their hash values. The company banned list has a higher priority than the file reputation, so even if the file is not listed or unknown by Carbon Black, it will be blocked if its hash is in the company banned list. Adding the hash to the company banned list is the most effective and efficient way to prevent the file from executing on the endpoints. The other options are either not feasible or not scalable. Adding the hash to the malware list would not work, because the malware list is a global list maintained by Carbon Black, and administrators cannot add hashes to it. Using Live Response to kill the process or delete the file would only work for one endpoint at a time, and it would not prevent the file from running again if it is still present on the endpoint or downloaded from another source. References: Carbon Black Cloud Endpoint Standard - Technical Overview, Add Hash to Banned List, Carbon Black Cloud: How to Add a SHA256 Hash to Approved/Banned List

The path that meets the criteria for allowing application.exe using wildcards is :\Users*\Temp\Allowed\application.exe. This path specifies that the executable file can run only from inside of the user’s Temp\Allowed directory, regardless of the drive letter or the user name. The wildcards used in this path are:

• *: Matches any single character or no character at all. For example, *:\ matches any drive letter, such as C:, D:, or E:.
• **: Matches a partial path across all subdirectory levels and is recursive. For example, \Users**\ matches any subdirectory under the Users directory, such as \Users\Lorie, \Users\John, or \Users\Alice\Documents.

The other paths do not meet the criteria for allowing application.exe using wildcards. A. C:\Users?\Temp\Allowed\application.exe does not allow running from any drive other than C:, and it only matches a single character for the user name, which may not be sufficient. B. C:\Users*\Temp\Allowed\application.exe does not allow running from any drive other than C:, and it may match more than one character for the user name, which may not be desired. D. *:\Users*\Temp\Allowed\application.exe allows running from any drive, but it may match more than one character for the user name, which may not be desired. References:

• Carbon Black Cloud: How to Use Wildcards in Policy Rules - Carbon Black Community, Wildcard Description table.

It is possible to search for unsigned files in the VMware Carbon Black Cloud console by using the search query:

NOT process_publisher_state:FILE_SIGNATURE_STATE_SIGNED

This query will return all the processes that have a publisher state other than FILE_SIGNATURE_STATE_SIGNED, which means they are either unsigned or have an invalid signature. The process_publisher_state field is a string that indicates the signature status of the process executable file. The possible values for this field are:

• FILE_SIGNATURE_STATE_SIGNED: The file has a valid signature.
• FILE_SIGNATURE_STATE_UNSIGNED: The file does not have a signature.
• FILE_SIGNATURE_STATE_INVALID: The file has a signature, but it is invalid or corrupted.
• FILE_SIGNATURE_STATE_MISSING: The file signature could not be retrieved or verified.

The NOT operator is a Boolean NOT operator that negates the following term or phrase. For example, NOT svchost.exe will return all the processes that are not named svchost.exe.

Therefore, by using the NOT operator with the process_publisher_state field and the value FILE_SIGNATURE_STATE_SIGNED, we can search for unsigned files in the console. References:

• Advanced Search Techniques - VMware Docs, Using Regular Expressions (regex) section, NOT Operator subsection.
• Carbon Black Cloud: Search for process_publisher_s… - Carbon Black …, The CB sensor now reinspects operating system files that appear unsigned to reverify their digital signature and avoid the tamper blocks section.