Detection rules › Sigma
File Explorer Folder Opened Using Explorer Folder Shortcut Via Shell
Detects the initial execution of "cmd.exe" which spawns "explorer.exe" with the appropriate command line arguments for opening the "My Computer" folder.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Discovery | T1135 Network Share Discovery |
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:
ParentImage|endswith: '\cmd.exe'
ParentImage|endswith: '\powershell.exe'
ParentImage|endswith: '\pwsh.exe'
CommandLine|contains: 'shell:mycomputerfolder'
Image|endswith: '\explorer.exe'
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 |
|