Windows Event ID 4689 — Process Exited
Logged when a process terminates. Paired with 4688 it gives the full lifetime of a process.
Why It Matters
Short-lived processes that execute and immediately exit are common for one-shot attack tools (droppers, reconnaissance commands). The exit status code can also reveal crashes or unexpected terminations.
Key Fields
Investigation Tips
- 1.Very short-lived processes (milliseconds between 4688 and 4689) executing cmd.exe with base64 arguments are suspicious.
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Go deeper: the full Suspicious Process Creation — Abnormal Parent-Child Relationships guide
Builds on this page with the attack chain, step-by-step investigation, immediate containment actions, KQL/Sigma detection queries, and an annotated example log.
Read the Suspicious Process Creation — Abnormal Parent-Child Relationships guide →See Event ID 4689 in your logs
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