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Local Security Authority Subsystem Service (LSASS) [1] is a process in Microsoft Windows operating systems that is responsible for enforcing the security policy on the system. It verifies users logging on to a Windows computer or server, handles password changes, and creates access tokens. [2] It also writes to the Windows Security Log.
A prime target is the LSASS process, which stores NTLM and Kerberos credentials. Credential Guard prevents attackers from dumping credentials stored in LSASS by running LSASS in a virtualized container that even a user with SYSTEM privileges cannot access. [ 5 ]
Sasser was created on April 30, 2005. [2] This worm was named Sasser because it spreads by exploiting a buffer overflow in the component known as LSASS (Local Security Authority Subsystem Service) on the affected operating systems.
Windows System Resource Manager (WSRM) is a component of Windows Server operating systems that enables the allocation of resources, including CPU and memory resources, among multiple applications based on business priorities. An administrator sets targets for the amount of hardware resources that running applications or users are allowed to ...
Dumping authenticated users' credentials stored by Windows in the memory of the lsass.exe process. The credentials dumped in this way may include those of domain users or administrators, such as those logged in via RDP. This technique may therefore be used to obtain credentials of user accounts that are not local to the compromised computer ...
Randy Franklin Smith's Ultimate Windows Security points out that given the ability of administrators to manipulate the Security Log to cover unauthorized activity, separation of duty between operations and security-monitoring IT staff, combined with frequent backups of the log to a server accessible only to the latter, can improve security. [11]
Resource exhaustion attacks are computer security exploits that crash, hang, or otherwise interfere with the targeted program or system.They are a form of denial-of-service attack but are different from distributed denial-of-service attacks, which involve overwhelming a network host such as a web server with requests from many locations.
The "sawtooth" pattern of memory utilization: the sudden drop in used memory is a candidate symptom for a memory leak. If the memory leak is in the kernel, the operating system itself will likely fail. Computers without sophisticated memory management, such as embedded systems, may also completely fail from a persistent memory leak.