Scheduled Task/Job At

calendar Oct 23, 2025 · attack.privilege-escalation attack.execution attack.persistence attack.t1053.002  ·
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Detects the use of at/atd which are utilities that are used to schedule tasks. They are often abused by adversaries to maintain persistence or to perform task scheduling for initial or recurring execution of malicious code

Sigma rule (View on GitHub)

 1title: Scheduled Task/Job At
 2id: d2d642d7-b393-43fe-bae4-e81ed5915c4b
 3status: stable
 4description: |
 5  Detects the use of at/atd which are utilities that are used to schedule tasks.
 6  They are often abused by adversaries to maintain persistence or to perform task scheduling for initial or recurring execution of malicious code  
 7references:
 8    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1053.002/T1053.002.md
 9author: Ömer Günal, oscd.community
10date: 2020-10-06
11modified: 2022-07-07
12tags:
13    - attack.privilege-escalation
14    - attack.execution
15    - attack.persistence
16    - attack.t1053.002
17logsource:
18    product: linux
19    category: process_creation
20detection:
21    selection:
22        Image|endswith:
23            - '/at'
24            - '/atd'
25    condition: selection
26falsepositives:
27    - Legitimate administration activities
28level: low

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