Direct answer
Event 4688 records a new process when the relevant audit policy is enabled. Correlate its executable, creator, identity and time with the surrounding activity.
Understand coverage
Microsoft's Audit Process Creation documentation lists event 4688 and notes that volume depends on process activity. Its presence identifies a process start, not whether the process was malicious or completed a particular action. Verify the relevant devices are audited and their events collected.
Reference: Microsoft: Audit Process Creation.
Build a process timeline
Record the new process, creator and account fields available in the event, device and timestamp. Process IDs can be reused, so use time and additional process-tree evidence rather than joining unrelated events by ID alone. Record absent fields and protect potentially sensitive arguments.
Check deployment context
A management agent starting an installer during an approved deployment can be expected. The same executable launched from a user-writable location by an unrelated process warrants additional context, signer and deployment verification. A familiar process name alone does not identify a trustworthy binary.
Investigate without execution
Compare the event with software inventory, change records and trusted security telemetry. Preserve evidence rather than executing an unknown binary, and check whether command-line logging was separately configured. Escalate suspicious context through the incident process and document what could not be verified.
Assessment limits
Process creation auditing must be enabled and collected. Command-line arguments may be absent unless separately configured and can contain sensitive data when present.
Frequently asked questions
Does a familiar process name prove a binary is safe?
No. Verify its path, source, signature and behavior using approved tools.
Does 4688 always include command-line arguments?
No. Command-line collection requires separate configuration and creates privacy considerations.
Primary sources and further reading
These guides combine published security guidance with practical assessment planning. Adapt checks to the owner's policy, environment, and authorized scope.
This guide was prepared with AI assistance using the linked sources and illustrative examples. Check current vendor guidance and your environment before making changes.