Detectionlowtest
OS Architecture Discovery Via Grep
Detects the use of grep to identify information about the operating system architecture. Often combined beforehand with the execution of "uname" or "cat /proc/cpuinfo"
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Launch
Log Source
LinuxProcess Creation
ProductLinux← raw: linux
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic2 selectors
detection:
selection_process:
Image|endswith: '/grep'
selection_architecture:
CommandLine|endswith:
- 'aarch64'
- 'arm'
- 'i386'
- 'i686'
- 'mips'
- 'x86_64'
condition: all of selection_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Techniques
Rule Metadata
Rule ID
d27ab432-2199-483f-a297-03633c05bae6
Status
test
Level
low
Type
Detection
Created
Fri Jun 02
Author
Path
rules/linux/process_creation/proc_creation_lnx_grep_os_arch_discovery.yml
Raw Tags
attack.discoveryattack.t1082