System Information Discovery
An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture.
On Mac, the
systemsetup command gives a detailed breakdown of the system, but it requires administrative privileges. Additionally, the
system_profiler gives a very detailed breakdown of configurations, firewall rules, mounted volumes, hardware, and many other things without needing elevated permissions.
can collect system information, including computer name, system manufacturer, IsDebuggerPresent state, and execution path.
JHUHUGIT obtains a build identifier as well as victim hard drive information from Windows registry key
Kwampirs collects OS version information such as registered owner details, manufacturer details, processor type, available storage, installed patches, hostname, version info, system date, and other system information by using the commands
Several Lazarus Group malware families collect information on the type and version of the victim OS, as well as the victim computer name and CPU information. A Destover-like variant used by Lazarus Group also collects disk space information and sends it to its C2 server.
Magic Hound malware has used a PowerShell command to check the victim system architecture to determine if it is an x64 machine. Other malware has obtained the OS version, UUID, and computer/host name to send to the C2 server.
has the capability to retrieve information about the OS.
Patchwork collected the victim computer name, OS version, and architecture type and sent the information to its C2 server. Patchwork also enumerated all available drives on the victim's machine.
Reaver collects system information from the victim, including CPU speed, computer name, volume serial number, ANSI code page, OEM code page identifier for the OS, Microsoft Windows version, and memory information.
Identify unnecessary system utilities or potentially malicious software that may be used to acquire information about the operating system and underlying hardware, and audit and/or block them by using whitelisting  tools, like AppLocker,   or Software Restriction Policies  where appropriate. 
System and network discovery techniques normally occur throughout an operation as an adversary learns the environment. Data and events should not be viewed in isolation, but as part of a chain of behavior that could lead to other activities based on the information obtained.
Monitor processes and command-line arguments for actions that could be taken to gather system and network information. Remote access tools with built-in features may interact directly with the Windows API to gather information. Information may also be acquired through Windows system management tools such as Windows Management Instrumentation and PowerShell.
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