Data from Local System
|Data from Local System|
|Platform||Linux, macOS, Windows|
|System Requirements||Privileges to access certain files and directories|
|Data Sources||File monitoring, Process monitoring, Process command-line parameters|
Sensitive data can be collected from local system sources, such as the file system or databases of information residing on the system prior to Exfiltration.
Adversaries will often search the file system on computers they have compromised to find files of interest. They may do this using a Command-Line Interface, such as cmd, which has functionality to interact with the file system to gather information. Some adversaries may also use Automated Collection on the local system.
- APT1 has collected files from a local victim.1
- APT28 has used Forfiles to stage documents before Exfiltration.2
- APT3 will identify Microsoft Office documents on the victim's computer. 3
- APT37 has collected data from victims' local systems.4
- BRONZE BUTLER has exfiltrated files stolen from local systems.5
- Dust Storm has used Android backdoors capable of exfiltrating specific files directly from the infected devices.6
- Ke3chang gathered information and files from local directories for exfiltration.7
- Lazarus Group malware IndiaIndia saves information gathered about the victim to a file that is uploaded to one of its 10 C2 servers.8 Lazarus Group malware RomeoDelta copies specified directories from the victim's machine, then archives and encrypts the directories before uploading to its C2 server.9
- Patchwork collected and exfiltrated files from the infected system.10
- Stealth Falcon malware gathers data from the local victim system.11
- Threat Group-3390 actors saved RAR files for exfiltration in the Recycler directory on a victim system.12
- Threat Group-3390 ran a command to compile an archive of file types of interest from the victim user's directories.13
- When it first starts, BADNEWS crawls the victim's local drives and collects documents with the following extensions: .doc, .docx, .pdf, .ppt, .pptx, and .txt.1415
- Cobalt Strike can collect data from a local system.16
- CosmicDuke steals user files from local hard drives with file extensions that match a predefined list.17
- creates a backdoor through which remote attackers can steal system information.18
- FLASHFLOOD searches for interesting files (either a default or customized set of file extensions) on the local system. FLASHFLOOD will scan the My Recent Documents, Desktop, Temporary Internet Files, and TEMP directories. FLASHFLOOD also collects information stored in the Windows Address Book.19
- Forfiles can be used to act on (ex: copy, move, etc.) files/directories in a system during Collection (ex: copy files into a staging area before Exfiltration).2
- Hydraq creates a backdoor through which remote attackers can read data from files.2021
- creates a backdoor through which remote attackers can obtain data from local systems.22
- MobileOrder exfiltrates data collected from the victim mobile device.23
- POWERSTATS can upload files from compromised hosts.24
- PUNCHTRACK scrapes memory for properly formatted payment card data.2526
- Pasam creates a backdoor through which remote attackers can retrieve files.27
- PinchDuke collects user files from the compromised host based on predefined file extensions.28
- PowerSploit contains a collection of Exfiltration modules that can access data from local files, volumes, and processes.2930
- RawPOS dumps memory from specific processes on a victim system, parses the dumped files, and scrapes them for credit card data.313233
- Rover searches for files on local drives based on a predefined list of file extensions.34
Identify unnecessary system utilities or potentially malicious software that may be used to collect data from the local system, and audit and/or block them by using whitelisting35 tools, like AppLocker,3637 or Software Restriction Policies38 where appropriate.39
Monitor processes and command-line arguments for actions that could be taken to collect files from a system. Remote access tools with built-in features may interact directly with the Windows API to gather data. Data may also be acquired through Windows system management tools such as Windows Management Instrumentation and PowerShell.
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