Adversaries may steal data by exfiltrating it over an un-encrypted network protocol other than that of the existing command and control channel. The data may also be sent to an alternate network location from the main command and control server.(Citation: copy_cmd_cisco) Adversaries may opt to obfuscate this data, without the use of encryption, within network protocols that are natively unencrypted (such as HTTP, FTP, or DNS). This may include custom or publicly available encoding/compression algorithms (such as base64) as well as embedding data within protocol headers and fields.

Linked Issues

Issuelinks
Linktyp Issue
is related to Techniques
is blocked by Network Intrusion Prevention
is blocked by Detection of Exfiltration Over Unencrypted Non-C2 Protocol
is blocked by Data Loss Prevention
is blocked by Filter Network Traffic
is blocked by Network Segmentation
is blocked by Provenance
is blocked by Security, Compliance & Resilience Controls Oversight
is blocked by Secure Baseline Configurations
is blocked by Least Functionality
is blocked by Continuous Monitoring
is blocked by Covert Channel Analysis
is blocked by Use of Cryptographic Controls
is blocked by Encrypting Data At Rest
is blocked by Cybersecurity & Data Protection Attributes
is blocked by Use of External Technology Assets, Applications and/or Services (TAAS)
is blocked by Data Mining Protection
is blocked by Malicious Code Protection (Anti-Malware)
is blocked by Account Management
is blocked by Access Enforcement
is blocked by Least Privilege
is blocked by Boundary Protection
is blocked by Data Flow Enforcement – Access Control Lists (ACLs)
is blocked by Interconnection Security Agreements (ISAs)
is blocked by Secure Engineering Principles
is blocked by Information Output Filtering
is blocked by Input Data Validation
is blocked by Third-Party Services
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