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File Fields

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File Fields

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A file is defined as a set of information that has been created on, or has existed on a filesystem.

File objects can be associated with host events, network events, and/or file events (e.g., those produced by File Integrity Monitoring [FIM] products or services). File fields provide details about the affected file associated with the event or metric.

File Field Details

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Field	Description	Level
file.accessed	Last time the file was accessed. Note that not all filesystems keep track of access time. type: date	extended
file.attributes	Array of file attributes. Attributes names will vary by platform. Here’s a non-exhaustive list of values that are expected in this field: archive, compressed, directory, encrypted, execute, hidden, read, readonly, system, write. type: keyword Note: this field should contain an array of values. example: `["readonly", "system"]`	extended
file.created	File creation time. Note that not all filesystems store the creation time. type: date	extended
file.ctime	Last time the file attributes or metadata changed. Note that changes to the file content will update `mtime`. This implies `ctime` will be adjusted at the same time, since `mtime` is an attribute of the file. type: date	extended
file.device	Device that is the source of the file. type: keyword example: `sda`	extended
file.directory	Directory where the file is located. It should include the drive letter, when appropriate. type: keyword example: `/home/alice`	extended
file.drive_letter	Drive letter where the file is located. This field is only relevant on Windows. The value should be uppercase, and not include the colon. type: keyword example: `C`	extended
file.extension	File extension, excluding the leading dot. Note that when the file name has multiple extensions (example.tar.gz), only the last one should be captured ("gz", not "tar.gz"). type: keyword example: `png`	extended
file.gid	Primary group ID (GID) of the file. type: keyword example: `1001`	extended
file.group	Primary group name of the file. type: keyword example: `alice`	extended
file.inode	Inode representing the file in the filesystem. type: keyword example: `256383`	extended
file.mime_type	MIME type should identify the format of the file or stream of bytes using IANA official types, where possible. When more than one type is applicable, the most specific type should be used. type: keyword	extended
file.mode	Mode of the file in octal representation. type: keyword example: `0640`	extended
file.mtime	Last time the file content was modified. type: date	extended
file.name	Name of the file including the extension, without the directory. type: keyword example: `example.png`	extended
file.owner	File owner’s username. type: keyword example: `alice`	extended
file.path	Full path to the file, including the file name. It should include the drive letter, when appropriate. type: keyword Multi-fields: * file.path.text (type: text) example: `/home/alice/example.png`	extended
file.size	File size in bytes. Only relevant when `file.type` is "file". type: long example: `16384`	extended
file.target_path	Target path for symlinks. type: keyword Multi-fields: * file.target_path.text (type: text)	extended
file.type	File type (file, dir, or symlink). type: keyword example: `file`	extended
file.uid	The user ID (UID) or security identifier (SID) of the file owner. type: keyword example: `1001`	extended

Field Reuse

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Field sets that can be nested under File

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Field Set	Location	Description
code_signature	`file.code_signature.*`	These fields contain information about binary code signatures.
hash	`file.hash.*`	Hashes, usually file hashes.
pe	`file.pe.*`	These fields contain Windows Portable Executable (PE) metadata.
x509	`file.x509.*`	These fields contain x509 certificate metadata.

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