Automation · API / MCP 中文

Technique note · T1209

Time Providers

The Windows Time service (W32Time) enables time synchronization across and within domains. W32Time time providers are responsible for retrieving time stamps from hardware/network resources and outputting these values to other network clients. Time providers are implemented as dynamic-link libraries (DLLs) that are registered in the subkeys of <code>HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W32Time\TimeProviders\</code>. The time provider manager, directed by the service control manager, loads and starts time providers listed and enabled under this key at system startup and/or whenever parameters are changed. Adversaries may abuse this architecture to establish Persistence, specifically by registering and enabling a malicious DLL as a time provider. Administrator privileges are required for time provider registration, though execution will run in context of the Local Service account.

ATT&CK T1209 platforms — Status Active Version 20.1

The Windows Time service (W32Time) enables time synchronization across and within domains. 1 W32Time time providers are responsible for retrieving time stamps from hardware/network resources and outputting these values to other network clients. 2 Time providers are implemented as dynamic-link libraries (DLLs) that are registered in the subkeys of <code>HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W32Time\TimeProviders\</code>. 3 The time provider manager, directed by the service control manager, loads and starts time providers listed and enabled under this key at system startup and/or whenever parameters are changed. 4 Adversaries may abuse this architecture to establish Persistence, specifically by registering and enabling a malicious DLL as a time provider. Administrator privileges are required for time provider registration, though execution will run in context of the Local Service account. 5

  1. Microsoft W32Time Feb 2018
  2. Microsoft TimeProvider
  3. Microsoft TimeProvider
  4. Microsoft TimeProvider
  5. Github W32Time Oct 2017

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