Detection rules › Sigma
Important Scheduled Task Deleted/Disabled
Detects when adversaries stop services or processes by deleting or disabling their respective scheduled tasks in order to conduct data destructive activities
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1053.005 Scheduled Task/Job: Scheduled Task |
| Persistence | T1053.005 Scheduled Task/Job: Scheduled Task |
| Privilege Escalation | T1053.005 Scheduled Task/Job: Scheduled Task |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Security-Auditing | 4699 | A scheduled task was deleted. |
| Security-Auditing | 4701 | A scheduled task was disabled. |
Stages and Predicates
Stage 1: selection
or:
TaskName|contains: '\Windows\BitLocker'
TaskName|contains: '\Windows\ExploitGuard'
TaskName|contains: '\Windows\SystemRestore\SR'
TaskName|contains: '\Windows\UpdateOrchestrator\Schedule'
TaskName|contains: '\Windows\Windows Defender\'
TaskName|contains: '\Windows\WindowsBackup\'
TaskName|contains: '\Windows\WindowsUpdate\'
Stage 2: not 1 of filter_sys_username
SubjectUserName|endswith: '$'
TaskName|contains: '\Windows\Windows Defender\'
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 |
|---|---|---|
SubjectUserName | ends_with |
|
TaskName | match |
|
Neighbors
Often fire together
Rules that target events appearing in the same incident timelines. They pattern-match on adjacent steps of the same TTP, so an alert from one is often paired with alerts from these. Useful for triage context and for assembling chained-detection rules.