| ID | Name |
|---|---|
| T1136.001 | Local Account |
| T1136.002 | Domain Account |
| T1136.003 | Cloud Account |
Adversaries may create a local account to maintain access to victim systems. Local accounts are those configured by an organization for use by users, remote support, services, or for administration on a single system or service.
For example, with a sufficient level of access, the Windows net user /add command can be used to create a local account. On macOS systems the dscl -create command can be used to create a local account. Local accounts may also be added to network devices, often via common Network Device CLI commands such as username, or to Kubernetes clusters using the kubectl utility.[1][2]
Such accounts may be used to establish secondary credentialed access that do not require persistent remote access tools to be deployed on the system.
| ID | Name | Description |
|---|---|---|
| G0022 | APT3 |
APT3 has been known to create or enable accounts, such as |
| G0087 | APT39 |
APT39 has created accounts on multiple compromised hosts to perform actions within the network.[4] |
| G0096 | APT41 | |
| G1023 | APT5 |
APT5 has created Local Administrator accounts to maintain access to systems with short-cycle credential rotation.[6] |
| S0274 | Calisto |
Calisto has the capability to add its own account to the victim's machine.[7] |
| S0030 | Carbanak | |
| S1111 | DarkGate |
DarkGate creates a local user account, |
| G0035 | Dragonfly |
Dragonfly has created accounts on victims, including administrator accounts, some of which appeared to be tailored to each individual staging target.[10] |
| S0363 | Empire |
Empire has a module for creating a local user if permissions allow.[11] |
| G1016 | FIN13 |
FIN13 has created MS-SQL local accounts in a compromised network.[12] |
| S0143 | Flame |
Flame can create backdoor accounts with login "HelpAssistant" on domain connected systems if appropriate rights are available.[13][14] |
| G0117 | Fox Kitten |
Fox Kitten has created a local user account with administrator privileges.[15] |
| S0493 | GoldenSpy | |
| S0394 | HiddenWasp |
HiddenWasp creates a user account as a means to provide initial persistence to the compromised machine.[17] |
| S0601 | Hildegard | |
| G0094 | Kimsuky | |
| G0077 | Leafminer |
Leafminer used a tool called Imecab to set up a persistent remote access account on the victim machine.[20] |
| G0059 | Magic Hound |
Magic Hound has created local accounts named |
| S0084 | Mis-Type |
Mis-Type may create a temporary user on the system named |
| S0039 | Net |
The |
| S0192 | Pupy |
Pupy can user PowerView to execute "net user" commands and create local system accounts.[25] |
| S0085 | S-Type |
S-Type may create a temporary user on the system named |
| S0382 | ServHelper |
ServHelper has created a new user named "supportaccount".[26] |
| S0649 | SMOKEDHAM | |
| G0139 | TeamTNT |
TeamTNT has created local privileged users on victim machines.[28] |
| G0102 | Wizard Spider |
Wizard Spider has created local administrator accounts to maintain persistence in compromised networks.[29] |
| S0412 | ZxShell |
| ID | Mitigation | Description |
|---|---|---|
| M1032 | Multi-factor Authentication |
Use multi-factor authentication for user and privileged accounts. |
| M1026 | Privileged Account Management |
Limit the number of accounts permitted to create other accounts. Limit the usage of local administrator accounts to be used for day-to-day operations that may expose them to potential adversaries. |
| ID | Data Source | Data Component | Detects |
|---|---|---|---|
| DS0017 | Command | Command Execution |
Monitor executed commands and arguments for actions that are associated with local account creation, such as |
| DS0009 | Process | Process Creation |
Monitor newly executed processes associated with account creation, such as net.exe Analytic 1 - Create local admin accounts using net.exe
|
| DS0002 | User Account | User Account Creation |
Monitor for newly constructed user and service accounts through account audits to detect suspicious accounts that may have been created by an adversary. Collect data on account creation within a network, a Kubernetes cluster, or Windows Event ID 4720 (for when a user account is created on a Windows system and domain controller). |