Detection rules › Sigma
Run PowerShell Script from ADS
Detects PowerShell script execution from Alternate Data Stream (ADS)
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Defense Evasion | T1564.004 Hide Artifacts: NTFS File Attributes |
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:
Image|endswith: '\powershell.exe'
Image|endswith: '\pwsh.exe'
or:
ParentImage|endswith: '\powershell.exe'
ParentImage|endswith: '\pwsh.exe'
CommandLine|contains: -Stream
CommandLine|contains: Get-Content
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 | ends_with |
|