The new docs.trellix.com offers a modernized UI and AI-powered features like conversational searches. Content is currently available only in English. Other languages will be available in mid-October 2026. We hope you enjoy the new experience.

File Write Event

Prev Next

Event Buffer Attribute

Helix Field Destination

Notes

closed

event_values.closed

True if a file close was observed during the write.

dataAtLowestOffset

event_values. dataAtLowestOffset

Up to 64 bytes of data written at the lowest offset.

dataOffset

event_values.dataOffset

devicePath

event_values.devicePath

The raw device path of the file being written

drive

event_values.drive

The drive of the file being written

eventReason

reason

fileExtension

extension

The file extension being written

filename

filename

The filename being written

filePath

event_values.filePath

The relative path of the file being written

fullPath

filePath

The full path of the file being written

lowestFileOffsetSeen

event_values. lowestFileOffsetSeen

The lowest offset in the file that was observed during the write

md5

md5

The md5 of the file

numBytesSeenWritten

seenbytes

The number of bytes written during this write event

openDuration

duration

The file open duration

openTime

event_values.openTime

The file open time

openTimeRaw

event_values.openTimeRaw

parentPid

ppid

The ID of the parent of the process writing the file

parentProcessPath

parentprocesspath

The path for the PE of the parent process

pid

pid

The process ID writing the file

ppath

event_values.ppath

The path for the PE of the process writing the file

process

process

The name of the process writing the file

processPath

processPath

The path for the PE of the process writing the file

size

size

The size of the file being written

textAtLowestOffset

event_values.

Raw text representation of dataAtLowestOffset

username

username

The owner of the process writing the file

writes

event_values.writes

The number of file write operations that were observed during the write.