BITS Event ID 59: BITS started a transfer job

Written when a Background Intelligent Transfer Service job starts, with the URL.

Log
Microsoft-Windows-Bits-Client/Operational
Category
Command and control

Why it matters

  • Attackers use BITS (bitsadmin, Start-BitsTransfer) to download tools, because it looks like normal Windows traffic.

What to check

Check the URL and job name; filter out Windows Update and known software.

How to turn it on

Logged by default.

MITRE ATT&CK

  • T1197 BITS Jobs
  • T1105 Ingress Tool Transfer