Detection rules › Sigma
Suspicious Schtasks Execution AppData Folder
Detects the creation of a schtask that executes a file from C:\Users<USER>\AppData\Local
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1053.005 Scheduled Task/Job: Scheduled Task, T1059.001 Command and Scripting Interpreter: PowerShell |
| Persistence | T1053.005 Scheduled Task/Job: Scheduled Task |
| Privilege Escalation | T1053.005 Scheduled Task/Job: Scheduled Task |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 1 | Process creation |
| Security-Auditing | 4688 | A new process has been created. |
Stages and Predicates
Stage 1: selection
or:
CommandLine|contains: ' SYSTEM '
CommandLine|contains: 'NT AUT'
CommandLine|contains: '/Create'
CommandLine|contains: '/RU'
CommandLine|contains: '/TR'
CommandLine|contains: 'C:\Users\'
CommandLine|contains: '\AppData\Local\'
Image|endswith: '\schtasks.exe'
Stage 2: not filter
CommandLine|contains: '/TN TVInstallRestore'
Image|endswith: '\schtasks.exe'
ParentImage|contains: TeamViewer_.exe
ParentImage|contains: '\AppData\Local\Temp\'
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 |
|
ParentImage | match |
|