Masquerading as Linux Crond Process
Masquerading occurs when the name or location of an executable, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. Several different variations of this technique have been observed.
Detection logic
selection
type: execve
a0: cp
a1: /bin/sh
a2|endswith: /crondCondition
selectionRaw YAML
title: Masquerading as Linux Crond Process
id: 9d4548fa-bba0-4e88-bd66-5d5bf516cda0
status: test
description: |
Masquerading occurs when the name or location of an executable, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation.
Several different variations of this technique have been observed.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/8a82e9b66a5b4f4bc5b91089e9f24e0544f20ad7/atomics/T1036.003/T1036.003.md#atomic-test-2---masquerading-as-linux-crond-process
author: Timur Zinniatullin, oscd.community
date: 2019-10-21
modified: 2023-08-22
tags:
- attack.stealth
- attack.t1036.003
logsource:
product: linux
service: auditd
detection:
selection:
type: 'execve'
a0: 'cp'
a1: '/bin/sh'
a2|endswith: '/crond'
condition: selection
level: mediumFalse positives
No false positives documented in this rule.