rules/windows/sysmon/sysmon_config_modification_status.yml

title: Sysmon Configuration Modification
id: 1f2b5353-573f-4880-8e33-7d04dcf97744
status: test
description: Detects when an attacker tries to hide from Sysmon by disabling or stopping it
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.001/T1562.001.md
    - https://talesfrominfosec.blogspot.com/2017/12/killing-sysmon-silently.html
author: frack113
date: 2021/06/04
modified: 2022/08/02
tags:
    - attack.defense_evasion
    - attack.t1564
logsource:
    product: windows
    category: sysmon_status
detection:
    selection_stop:
        State: Stopped
    selection_conf:
        - 'Sysmon config state changed'
    filter:
        State: Started
    condition: 1 of selection_* and not filter
falsepositives:
    - Legitimate administrative action
level: high
$frack113$ Detect modification of sysmon configuration by sysmon 2021-06-04 11:27:15 +02:00			`title: Sysmon Configuration Modification`
$frack113$ Split global rules 2021-09-07 13:30:32 +02:00			`id: 1f2b5353-573f-4880-8e33-7d04dcf97744`
$frack113$ Filter start 2022-08-02 10:42:03 +02:00			`status: test`
$frack113$ Order yaml field 2022-10-25 12:00:56 +02:00			`description: Detects when an attacker tries to hide from Sysmon by disabling or stopping it`
$frack113$ Detect modification of sysmon configuration by sysmon 2021-06-04 11:27:15 +02:00			`references:`
Update Ref+Selection 2 2022-07-11 17:48:40 +01:00			`- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.001/T1562.001.md`
$frack113$ Detect modification of sysmon configuration by sysmon 2021-06-04 11:27:15 +02:00			`- https://talesfrominfosec.blogspot.com/2017/12/killing-sysmon-silently.html`
$frack113$ Order yaml field 2022-10-25 12:00:56 +02:00			`author: frack113`
			`date: 2021/06/04`
			`modified: 2022/08/02`
$frack113$ Detect modification of sysmon configuration by sysmon 2021-06-04 11:27:15 +02:00			`tags:`
			`- attack.defense_evasion`
			`- attack.t1564`
			`logsource:`
			`product: windows`
$frack113$ convert eventID to category 2021-06-10 16:36:14 +02:00			`category: sysmon_status`
$frack113$ Detect modification of sysmon configuration by sysmon 2021-06-04 11:27:15 +02:00			`detection:`
			`selection_stop:`
			`State: Stopped`
			`selection_conf:`
fix: Correct incorrect message / keyword usage 2021-08-12 14:03:18 +02:00			`- 'Sysmon config state changed'`
$frack113$ Filter start 2022-08-02 10:42:03 +02:00			`filter:`
			`State: Started`
			`condition: 1 of selection_* and not filter`
$frack113$ Split global rules 2021-09-07 13:30:32 +02:00			`falsepositives:`
fix: legitimate --> Legitimate 2022-03-16 14:35:19 +01:00			`- Legitimate administrative action`
Update Ref+Selection 2 2022-07-11 17:48:40 +01:00			`level: high`