Data from Local System
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||APT1 has collected files from a local victim. |
|APT28||APT28 has retrieved internal documents from machines inside victim environments, including by using Forfiles to stage documents before.  |
|APT3||APT3 will identify Microsoft Office documents on the victim's computer. |
|APT37||APT37 has collected data from victims' local systems. |
|BADNEWS||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.  |
|BadPatch||BadPatch collects files from the local system that have the following extensions, then prepares them for exfiltration: .xls, .xlsx, .pdf, .mdb, .rar, .zip, .doc, .docx. |
|Bankshot||Bankshot collects files from the local system. |
|BRONZE BUTLER||BRONZE BUTLER has exfiltrated files stolen from local systems. |
|Calisto||Calisto can collect data from user directories. |
|China Chopper||China Chopper's server component can upload local files.   |
|Cobalt Strike||Cobalt Strike can collect data from a local system. |
|CosmicDuke||CosmicDuke steals user files from local hard drives with file extensions that match a predefined list. |
|Dark Caracal||Dark Caracal collected complete contents of the 'Pictures' folder from compromised Windows systems. |
|Dragonfly 2.0||Dragonfly 2.0 collected data from local victim systems. |
|Dust Storm||Dust Storm has used Android backdoors capable of exfiltrating specific files directly from the infected devices. |
|FLASHFLOOD||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. |
|Forfiles||Forfiles can be used to act on (ex: copy, move, etc.) files/directories in a system during (ex: copy files into a staging area before). |
|GravityRAT||GravityRAT steals files with the following extensions: .docx, .doc, .pptx, .ppt, .xlsx, .xls, .rtf, and .pdf. |
|Honeybee||Honeybee collects data from the local victim system. |
|Hydraq||Hydraq creates a backdoor through which remote attackers can read data from files.  |
|Ixeshe||Ixeshe can collect data from a local system. |
|Kazuar||Kazuar uploads files from a specified directory to the C2 server. |
|Ke3chang||Ke3chang gathered information and files from local directories for exfiltration. |
|Koadic||Koadic can download files off the target system to send back to the server. |
|Lazarus Group||Lazarus Group malware IndiaIndia saves information gathered about the victim to a file that is uploaded to one of its 10 C2 servers. Lazarus Group malware RomeoDelta copies specified directories from the victim's machine, then archives and encrypts the directories before uploading to its C2 server.   |
|LightNeuron||LightNeuron can collect files from a local system. |
|Linfo||Linfo creates a backdoor through which remote attackers can obtain data from local systems. |
|menuPass||menuPass has collected various files from the compromised computers. |
|MobileOrder||MobileOrder exfiltrates data collected from the victim mobile device. |
|njRAT||njRAT can collect data from a local system. |
|Pasam||Pasam creates a backdoor through which remote attackers can retrieve files. |
|Patchwork||Patchwork collected and exfiltrated files from the infected system. |
|PinchDuke||PinchDuke collects user files from the compromised host based on predefined file extensions. |
|PoisonIvy||PoisonIvy creates a backdoor through which remote attackers can steal system information. |
|PowerSploit||PowerSploit contains a collection of Exfiltration modules that can access data from local files, volumes, and processes.  |
|POWERSTATS||POWERSTATS can upload files from compromised hosts. |
|Proxysvc||Proxysvc searches the local system and gathers data. |
|PUNCHTRACK||PUNCHTRACK scrapes memory for properly formatted payment card data.  |
|RawPOS||RawPOS dumps memory from specific processes on a victim system, parses the dumped files, and scrapes them for credit card data.   |
|Rover||Rover searches for files on local drives based on a predefined list of file extensions. |
|Soft Cell||Soft Cell collected data from the victim's local system, including password hashes from the SAM hive in the Registry. |
|Stealth Falcon||Stealth Falcon malware gathers data from the local victim system. |
|Threat Group-3390||Threat Group-3390 ran a command to compile an archive of file types of interest from the victim user's directories. |
|TrickBot||TrickBot collects local files and information from the victim’s local machine. |
|Turla||Turla RPC backdoors can upload files from victim machines. |
|Ursnif||Ursnif has collected files from victim machines, including certificates and cookies. |
|yty||yty collects files with the following extensions: .ppt, .pptx, .pdf, .doc, .docx, .xls, .xlsx, .docm, .rtf, .inp, .xlsm, .csv, .odt, .pps, .vcf and sends them back to the C2 server. |
This type of attack technique cannot be easily mitigated with preventive controls since it is based on the abuse of system features.
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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