Suspicious PowerShell: Support Diagnostic
Follow the evidence. Build your hypothesis. Make the call.
Follow the thread.
Each discovery leaves a trace.
INITIAL ALERT
FIN-WS042Suspicious PowerShell
2026-09-13 12:41:08 UTC Computer: FIN-WS042 User: CORP\m.roberts Image: C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe CommandLine: powershell.exe -NoProfile -ExecutionPolicy Bypass -File "C:\Users\m.roberts\AppData\Local\Temp\TeamsSupport\Collect-Diagnostics.ps1" ProcessId: 6844 ParentProcessId: 5312 IntegrityLevel: Medium
WHERE TO LOOK
Sysmon Event ID 1 · Windows Security 4688 (command-line auditing enabled) · EDR process telemetry · SIEM
NEXT STEP
