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  1. Frameworks
  2. >ATTACK
  3. >Exfiltration
  4. >ATTACK-T1567.003
ATTACK-T1567.003Active

Exfiltration to Text Storage Sites

Statement

Adversaries may exfiltrate data to text storage sites instead of their primary command and control channel. Text storage sites, such as <code>pastebin[.]com</code>, are commonly used by developers to share code and other information.

Text storage sites are often used to host malicious code for C2 communication (e.g., Stage Capabilities), but adversaries may also use these sites to exfiltrate collected data. Furthermore, paid features and encryption options may allow adversaries to conceal and store data more securely.(Citation: Pastebin EchoSec)

Note: This is distinct from Exfiltration to Code Repository, which highlight access to code repositories via APIs.

Location

Tactic
Exfiltration

Technique Details

Identifier
ATTACK-T1567.003
Parent Technique
ATTACK-T1567
ATT&CK Page
View on MITRE

Tactics

Exfiltration

Platforms

LinuxmacOSWindowsESXi

Detection

Detection Strategy for Exfiltration to Text Storage Sites

Mitigations

Restrict Web-Based Content: Restricting web-based content involves enforcing policies and technologies that limit access to potentially malicious websites, unsafe downloads, and unauthorized browser behaviors. This can include URL filtering, download restrictions, script blocking, and extension control to protect against exploitation, phishing, and malware delivery. This mitigation can be implemented through the following measures:

Deploy Web Proxy Filtering:

  • Use solutions to filter web traffic based on categories, reputation, and content types.
  • Enforce policies that block unsafe websites or file types at the gateway level.

Enable DNS-Based Filtering:

  • Implement tools to restrict access to domains associated with malware or phishing campaigns.
  • Use public DNS filtering services to enhance protection.

Enforce Content Security Policies (CSP):

  • Configure CSP headers on internal and external web applications to restrict script execution, iframe embedding, and cross-origin requests.

Control Browser Features:

  • Disable unapproved browser features like automatic downloads, developer tools, or unsafe scripting.
  • Enforce policies through tools like Group Policy Management to control browser settings.

Monitor and Alert on Web-Based Threats:

  • Use SIEM tools to collect and analyze web proxy logs for signs of anomalous or malicious activity.
  • Configure alerts for access attempts to blocked domains or repeated file download failures.

No cross-framework mappings available

← Back to Exfiltration
Exfiltration19 controls
ATTACK-T1011Exfiltration Over Other Network MediumATTACK-T1011.001Exfiltration Over BluetoothATTACK-T1020Automated ExfiltrationATTACK-T1020.001Traffic DuplicationATTACK-T1029Scheduled TransferATTACK-T1030Data Transfer Size LimitsATTACK-T1041Exfiltration Over C2 ChannelATTACK-T1048Exfiltration Over Alternative ProtocolATTACK-T1048.001Exfiltration Over Symmetric Encrypted Non-C2 ProtocolATTACK-T1048.002Exfiltration Over Asymmetric Encrypted Non-C2 ProtocolATTACK-T1048.003Exfiltration Over Unencrypted Non-C2 ProtocolATTACK-T1052Exfiltration Over Physical MediumATTACK-T1052.001Exfiltration over USBATTACK-T1537Transfer Data to Cloud AccountATTACK-T1567Exfiltration Over Web ServiceATTACK-T1567.001Exfiltration to Code RepositoryATTACK-T1567.002Exfiltration to Cloud StorageATTACK-T1567.003Exfiltration to Text Storage SitesATTACK-T1567.004Exfiltration Over Webhook