Detection rules › Sigma
Removal Of SD Value to Hide Schedule Task - Registry
Remove SD (Security Descriptor) value in \Schedule\TaskCache\Tree registry hive to hide schedule task. This technique is used by Tarrask malware
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Defense Evasion | T1562 Impair Defenses |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| Sysmon | 14 | RegistryEvent (Key and Value Rename) |
Stages and Predicates
Stage 1: selection
TargetObject|contains: SD
TargetObject|contains: '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\'
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 |
|---|---|---|
TargetObject | match |
|