Detectionhightest
Disable Important Scheduled Task
Detects when adversaries stop services or processes by disabling their respective scheduled tasks in order to conduct data destructive activities
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Launch
François Hubaut, Nasreddine Bencherchali (Nextron Systems), X__JuniorCreated Sun Dec 26Updated Sun Aug 259ac94dc8-9042-493c-ba45-3b5e7c86b980windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic1 selector
detection:
selection:
Image|endswith: '\schtasks.exe'
CommandLine|contains|all:
- '/Change'
- '/TN'
- '/disable'
CommandLine|contains:
# Add more important tasks
- '\Windows\BitLocker'
- '\Windows\ExploitGuard'
- '\Windows\ExploitGuard\ExploitGuard MDM policy Refresh'
- '\Windows\SystemRestore\SR'
- '\Windows\UpdateOrchestrator\'
- '\Windows\Windows Defender\'
- '\Windows\WindowsBackup\'
- '\Windows\WindowsUpdate\'
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Techniques
Rule Metadata
Rule ID
9ac94dc8-9042-493c-ba45-3b5e7c86b980
Status
test
Level
high
Type
Detection
Created
Sun Dec 26
Modified
Sun Aug 25
Path
rules/windows/process_creation/proc_creation_win_schtasks_disable.yml
Raw Tags
attack.impactattack.t1489