Powershell Remote Thread To Known Windows Process

The following analytic detects suspicious PowerShell processes attempting to inject code into critical Windows processes using CreateRemoteThread. It leverages Sysmon EventCode 8 to identify instances where PowerShell spawns threads in processes like svchost.exe, csrss.exe, and others. This activity is significant as it is commonly used by malware such as TrickBot and offensive tools like Cobalt Strike to execute malicious payloads, establish reverse shells, or download additional malware. If confirmed malicious, this behavior could lead to unauthorized code execution, privilege escalation, and persistent access within the environment.

ATT&CK coverage

Outside the enterprise matrix

T1055

Detection requirements

Log source category: sysmon_eventid_8

Detection logic

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Detection catalogue

ATT&CK coverage

Detection requirements

Detection logic