Detectionlowtest

System Owner or User Discovery - Linux

Detects the execution of host or user discovery utilities such as "whoami", "hostname", "id", etc. Adversaries may use the information from System Owner/User Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.

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Launch
Timur Zinniatullin, oscd.communityCreated Mon Oct 21Updated Wed Jun 049a0d8ca0-2385-4020-b6c6-cb6153ca56f3linux
Log Source
Linuxauditd
ProductLinux← raw: linux
Serviceauditd← raw: auditd
Detection Logic
Detection Logic1 selector
detection:
    selection:
        type: 'EXECVE'
        a0:
            - 'hostname'
            - 'id'
            - 'last'
            - 'uname'
            - 'users'
            - 'w'
            - 'who'
            - 'whoami'
    condition: selection
False Positives

Admin activity

Rule Metadata
Rule ID
9a0d8ca0-2385-4020-b6c6-cb6153ca56f3
Status
test
Level
low
Type
Detection
Created
Mon Oct 21
Modified
Wed Jun 04
Path
rules/linux/auditd/execve/lnx_auditd_user_discovery.yml
Raw Tags
attack.discoveryattack.t1033
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