Rules: First Seen Ioreg Usage from User
A user has executed a ioreg command not seen since the baseline period. The ioreg binary can be used to enumerate configurations on a Unix/macOS host and can be used by malware to ensure that code is not running on a virtual machine or sandbox. This rule utilizes data from the "LOOBins" project: https://github.com/infosecB/LOOBins - more information regarding this specific binary can be found via: https://www.loobins.io/binaries/ioreg/
| Detail | Value |
|---|---|
| Type | First Seen |
| Category | Discovery |
| Apply Risk to Entities | user_username |
| Signal Name | First Seen Ioreg Usage from User |
| Summary Expression | {{user_username}} has executed a ioreg command from {{device_hostname}} |
| Retention Window | 7776000000 |
| Baseline Window | 1209600000 |
| Baseline Type | PER_ENTITY |
| Score/Severity | Static: 2 |
| Enabled by Default | True |
| Prototype | False |
| Tags | _mitreAttackTactic:TA0007, _mitreAttackTechnique:T1120 |
| Origin | Field |
|---|---|
| Normalized Schema | baseImage |
| Normalized Schema | parentBaseImage |
| Normalized Schema | user_username |