Detection rules › Sigma
Potential Xterm Reverse Shell
Detects usage of "xterm" as a potential reverse shell tunnel
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution |
Telemetry coverage
| Platform | Record / event type |
|---|---|
| Linux | Event ID 1: Process Create |
Rule body
title: Potential Xterm Reverse Shell
id: 4e25af4b-246d-44ea-8563-e42aacab006b
status: test
description: Detects usage of "xterm" as a potential reverse shell tunnel
references:
- https://pentestmonkey.net/cheat-sheet/shells/reverse-shell-cheat-sheet
- https://www.revshells.com/
author: '@d4ns4n_'
date: 2023-04-24
tags:
- attack.execution
- attack.t1059
logsource:
category: process_creation
product: linux
detection:
selection:
Image|contains: 'xterm'
CommandLine|contains: '-display'
CommandLine|endswith: ':1'
condition: selection
falsepositives:
- Unknown
level: medium
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image|contains: 'xterm'
CommandLine|contains: '-display'
CommandLine|endswith: ':1'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
CommandLine | ends_with |
| field:"CommandLine" kind:ends_with value:":1" |
CommandLine | match |
| field:"CommandLine" kind:match value:"-display" |
Image | match |
| field:"Image" kind:match value:"xterm" |