Detection rules › Sigma
Split A File Into Pieces
Detection use of the command "split" to split files into parts and possible transfer.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Exfiltration | T1030 Data Transfer Size Limits |
Event coverage
| Provider | Event | Title |
|---|---|---|
| ESF | exec | Process Execution (Notify) |
Rule body yaml
title: Split A File Into Pieces
id: 7f2bb9d5-6395-4de5-969c-70c11fbe6b12
status: test
description: Detection use of the command "split" to split files into parts and possible transfer.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1030/T1030.md
author: 'Igor Fits, Mikhail Larin, oscd.community'
date: 2020-10-15
modified: 2021-11-27
tags:
- attack.exfiltration
- attack.t1030
logsource:
product: macos
category: process_creation
detection:
selection:
Image|endswith: '/split'
condition: selection
falsepositives:
- Legitimate administrative activity
level: low
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|endswith: '/split'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
Image | ends_with |
|