CmdID

CmdID / Techniques

T1531 Account Access Removal

Adversaries may interrupt availability of system and network resources by inhibiting access to accounts utilized by legitimate users. MITRE ATT&CK

2 Sigma rules T1531 on attack.mitre.org

Sigma rules tagged with it

process creation, the highest levels first
mediumGroup Has Been Deleted Via GroupdelTuan Le (NCSGroup) · Linux
mediumUser Has Been Deleted Via UserdelTuan Le (NCSGroup) · Linux

Command lines CmdID reads as it

everyday examples from tldr-pages, CC BY 4.0

Delete an existing group on the page for groupdel

sudo groupdel group_nameIdentify

Remove a user on the page for userdel

sudo userdel usernameIdentify

Remove a user in other root directory on the page for userdel

sudo userdel --root path/to/other_root usernameIdentify

Remove a user along with the home directory and mail spool on the page for userdel

sudo userdel --remove usernameIdentify

An example is here when CmdID’s reading of it names T1531: a Sigma rule it trips is tagged with it, or its abuse is documented as it.