Detection rules › Sigma
Potential KamiKakaBot Activity - Shutdown Schedule Task Creation
Detects the creation of a schedule task that runs weekly and execute the "shutdown /l /f" command. This behavior was observed being used by KamiKakaBot samples in order to achieve persistence on a system.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | No specific technique |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 1 | Process creation |
| Security-Auditing | Event ID 4688 | A new process has been created. |
Rule body yaml
title: Potential KamiKakaBot Activity - Shutdown Schedule Task Creation
id: fe9e8ba9-4419-41e6-a574-bd9f7b3af961
status: test
description: |
Detects the creation of a schedule task that runs weekly and execute the "shutdown /l /f" command.
This behavior was observed being used by KamiKakaBot samples in order to achieve persistence on a system.
references:
- https://www.nextron-systems.com/2024/03/22/unveiling-kamikakabot-malware-analysis/
- https://tria.ge/240123-rapteaahhr/behavioral1
author: Nasreddine Bencherchali (Nextron Systems), X__Junior (Nextron Systems)
date: 2024-03-22
tags:
- attack.persistence
- detection.emerging-threats
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith: '\schtasks.exe'
CommandLine|contains|all:
- ' /create '
- 'shutdown /l /f'
- 'WEEKLY'
filter_main_system_user:
User|contains: # covers many language settings
- 'AUTHORI'
- 'AUTORI'
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: medium
Stages and Predicates
Stage 0: condition
selection and not 1 of filter_main_*Stage 1: selection
selection:
Image|endswith: '\schtasks.exe'
CommandLine|contains|all:
- ' /create '
- 'shutdown /l /f'
- 'WEEKLY'
Stage 2: not filter_main_system_user
filter_main_system_user:
User|contains:
- 'AUTHORI'
- 'AUTORI'
Exclusions
Top-level NOT(...) conjuncts: predicates this rule actively suppresses.
| Field | Kind | Excluded values |
|---|---|---|
User | match | AUTHORI |
User | match | AUTORI |
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 |
|---|---|---|
CommandLine | match |
|
Image | ends_with |
|