Boot or Logon Autostart Execution: Пакет аутентификации
Other sub-techniques of Boot or Logon Autostart Execution (15)
Adversaries may abuse authentication packages to execute DLLs when the system boots. Windows authentication package DLLs are loaded by the Local Security Authority (LSA) process at system start. They provide support for multiple logon processes and multiple security protocols to the operating system.(Citation: MSDN Authentication Packages)
Adversaries can use the autostart mechanism provided by LSA authentication packages for persistence by placing a reference to a binary in the Windows Registry location HKLM\SYSTEM\CurrentControlSet\Control\Lsa\
with the key value of "Authentication Packages"=<target binary>
. The binary will then be executed by the system when the authentication packages are loaded.
Примеры процедур |
|
Название | Описание |
---|---|
Flame |
Flame can use Windows Authentication Packages for persistence.(Citation: Crysys Skywiper) |
Контрмеры |
|
Контрмера | Описание |
---|---|
Privileged Process Integrity |
Protect processes with high privileges that can be used to interact with critical system components through use of protected process light, anti-process injection defenses, or other process integrity enforcement measures. |
Обнаружение
Monitor the Registry for changes to the LSA Registry keys. Monitor the LSA process for DLL loads. Windows 8.1 and Windows Server 2012 R2 may generate events when unsigned DLLs try to load into the LSA by setting the Registry key HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\LSASS.exe
with AuditLevel = 8. (Citation: Graeber 2014) (Citation: Microsoft Configure LSA)
Ссылки
- Microsoft. (n.d.). Authentication Packages. Retrieved March 1, 2017.
- Microsoft. (2013, July 31). Configuring Additional LSA Protection. Retrieved June 24, 2015.
- Graeber, M. (2014, October). Analysis of Malicious Security Support Provider DLLs. Retrieved March 1, 2017.
- sKyWIper Analysis Team. (2012, May 31). sKyWIper (a.k.a. Flame a.k.a. Flamer): A complex malware for targeted attacks. Retrieved September 6, 2018.
Связанные риски
Риск | Связи | |
---|---|---|
Закрепление злоумышленника в ОС из-за
подмены библиотек пакетов аутентификации в Local Security Authority в ОС Windows
Повышение привилегий
НСД
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Каталоги
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