Sigma rule: Split A File Into Pieces

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-8df6a58c94c4, updated 2021-11-27T00:00:00.000Z.

Rule

Title
Split A File Into Pieces
Status
test
Level
low
Author
Igor Fits, Mikhail Larin, oscd.community
Date
2020-10-15
Modified
2021-11-27
File
rules/macos/process_creation/proc_creation_macos_split_file_into_pieces.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detection use of the command "split" to split files into parts and possible transfer.

Log source

product
macos
category
process_creation

Detection

selection:
    Image|endswith: '/split'
condition: selection

False positives (as the rule lists them)

  • Legitimate administrative activity

Tags

  • attack.exfiltration
  • attack.t1030

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/macos/process_creation/proc_creation_macos_split_file_into_pieces.yml

Sources and licences

  • SigmaHQ

    "Split A File Into Pieces" by Igor Fits, Mikhail Larin, oscd.community (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/macos/process_creation/proc_creation_macos_split_file_into_pieces.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Split A File Into Pieces",
entity page, dataset version ref-8df6a58c94c4, updated 2021-11-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/7f2bb9d5-6395-4de5-969c-70c11fbe6b12 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 7f2bb9d5-6395-4de5-969c-70c11fbe6b12, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.