Sysmon Event ID 8: CreateRemoteThread

Records one process starting a thread inside another process.

Log
Microsoft-Windows-Sysmon/Operational
Category
Process injection

Why it matters

  • A classic sign of process injection, though a few legitimate tools (and Windows itself) also do it.

What to check

Check SourceImage, TargetImage and StartFunction; injection into explorer.exe, lsass.exe or browsers stands out.

How to turn it on

Sysmon configuration including CreateRemoteThread.

MITRE ATT&CK

  • T1055 Process Injection