LoFP / note that false positives may occur due to the use of the enable-psremoting cmdlet by legitimate users, such as system administrators. it is recommended to apply appropriate filters as needed to minimize the number of false positives.

Techniques

• T1059
• T1059.001

Sample rules

PowerShell Enable PowerShell Remoting

• source: splunk
• technicques:
  • T1059.001
  • T1059

Description

This analytic utilizes PowerShell Script Block Logging (EventCode 4104) to identify the use of Enable-PSRemoting cmdlet. This cmdlet allows users to enable PowerShell remoting on a local or remote computer, which allows other computers to run commands on the target computer. The ability to remotely execute commands can be abused by attackers to take control of compromised systems and pivot to other systems on the network. By detecting the use of Enable-PSRemoting cmdlet via script block logging, this analytic can help organizations identify potential malicious activity related to attackers attempting to gain remote control of compromised systems.

Detection logic

`powershell` EventCode=4104 ScriptBlockText="*Enable-PSRemoting*" 
| stats count min(_time) as firstTime max(_time) as lastTime by Computer EventCode ScriptBlockText 
| `security_content_ctime(firstTime)` 
| `security_content_ctime(lastTime)`
| `powershell_enable_powershell_remoting_filter`