System Information Discovery
|System Information Discovery|
|Platform||Windows Server 2003, Windows Server 2008, Windows Server 2012, Windows XP, Windows 7, Windows 8, Windows Server 2003 R2, Windows Server 2008 R2, Windows Server 2012 R2, Windows Vista, Windows 8.1, Linux, Windows 10, MacOS, OS X|
|Data Sources||Process command-line parameters, Process monitoring|
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.
- APT28 has enumerated installed applications on macOS devices with built-in utilities such as
ls -al /Applications1.
- A Gamaredon Group file stealer can gather the victim's computer name and drive serial numbers to send to a C2 server.2
- Ke3chang performs operating system information discovery using
- 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.45
- Patchwork collected the victim computer name, OS version, and architecture type and sent the information to its C2 server .6
- Stealth Falcon malware gathers system information via WMI, including the system directory, build number, serial number, version, manufacturer, model, and total physical memory.7
- Turla surveys a system upon check-in to discover operating system configuration details using the
- admin@338 actors used the following commands after exploiting a machine with LOWBALL malware to obtain information about the OS:
ver >> %temp%\download
systeminfo >> %temp%\download9
systeminfoafter initial communication is made to the remote server.25
ls -la /Applicationsto gather what applications are installed.1
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 whitelisting46 tools, like AppLocker,4748 or Software Restriction Policies49 where appropriate.50
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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