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TECHNIQUES
PRE-ATT&CK
Priority Definition Planning
Priority Definition Direction
Target Selection
Technical Information Gathering
People Information Gathering
Organizational Information Gathering
Technical Weakness Identification
People Weakness Identification
Organizational Weakness Identification
Adversary OPSEC
Establish & Maintain Infrastructure
Persona Development
Build Capabilities
Test Capabilities
Stage Capabilities
Enterprise
Initial Access
Phishing
Supply Chain Compromise
Valid Accounts
Execution
Command and Scripting Interpreter
Inter-Process Communication
Scheduled Task/Job
System Services
User Execution
Persistence
Account Manipulation
Boot or Logon Autostart Execution
Boot or Logon Initialization Scripts
Create Account
Create or Modify System Process
Event Triggered Execution
Hijack Execution Flow
Office Application Startup
Pre-OS Boot
Scheduled Task/Job
Server Software Component
Traffic Signaling
Valid Accounts
Privilege Escalation
Abuse Elevation Control Mechanism
Access Token Manipulation
Boot or Logon Autostart Execution
Boot or Logon Initialization Scripts
Create or Modify System Process
Event Triggered Execution
Hijack Execution Flow
Process Injection
Scheduled Task/Job
Valid Accounts
Defense Evasion
Abuse Elevation Control Mechanism
Access Token Manipulation
Execution Guardrails
File and Directory Permissions Modification
Hide Artifacts
Hijack Execution Flow
Impair Defenses
Indicator Removal on Host
Masquerading
Modify Authentication Process
Modify Cloud Compute Infrastructure
Obfuscated Files or Information
Pre-OS Boot
Process Injection
Signed Binary Proxy Execution
Signed Script Proxy Execution
Subvert Trust Controls
Traffic Signaling
Trusted Developer Utilities Proxy Execution
Use Alternate Authentication Material
Valid Accounts
Virtualization/Sandbox Evasion
Credential Access
Brute Force
Credentials from Password Stores
Input Capture
Man-in-the-Middle
Modify Authentication Process
OS Credential Dumping
Steal or Forge Kerberos Tickets
Unsecured Credentials
Discovery
Account Discovery
Permission Groups Discovery
Software Discovery
Virtualization/Sandbox Evasion
Lateral Movement
Remote Service Session Hijacking
Remote Services
Use Alternate Authentication Material
Collection
Archive Collected Data
Data from Information Repositories
Data Staged
Email Collection
Input Capture
Man-in-the-Middle
Command and Control
Application Layer Protocol
Data Encoding
Data Obfuscation
Dynamic Resolution
Encrypted Channel
Proxy
Traffic Signaling
Web Service
Exfiltration
Exfiltration Over Alternative Protocol
Exfiltration Over Other Network Medium
Exfiltration Over Physical Medium
Exfiltration Over Web Service
Impact
Data Manipulation
Defacement
Disk Wipe
Endpoint Denial of Service
Network Denial of Service
Mobile
Initial Access
Execution
Persistence
Privilege Escalation
Defense Evasion
Credential Access
Discovery
Lateral Movement
Collection
Command and Control
Exfiltration
Impact
Network Effects
Remote Service Effects
  1. Home
  2. Techniques
  3. Enterprise
  4. Impair Defenses

Impair Defenses

ID Name
T1562.001 Disable or Modify Tools
T1562.002 Disable Windows Event Logging
T1562.003 HISTCONTROL
T1562.004 Disable or Modify System Firewall
T1562.006 Indicator Blocking
T1562.007 Disable or Modify Cloud Firewall

Adversaries may maliciously modify components of a victim environment in order to hinder or disable defensive mechanisms. This not only involves impairing preventative defenses, such as firewalls and anti-virus, but also detection capabilities that defenders can use to audit activity and identify malicious behavior. This may also span both native defenses as well as supplemental capabilities installed by users and administrators.

Adversaries could also target event aggregation and analysis mechanisms, or otherwise disrupt these procedures by altering other system components.

ID: T1562
Sub-techniques:  T1562.001, T1562.002, T1562.003, T1562.004, T1562.006, T1562.007
Tactic: Defense Evasion
Platforms: AWS, Azure, GCP, Linux, Windows, macOS
Permissions Required: Administrator, User
Data Sources: API monitoring, AWS CloudTrail logs, Anti-virus, Authentication logs, Azure activity logs, Environment variable, File monitoring, GCP audit logs, Process command-line parameters, Process monitoring, Services, Windows Registry
Defense Bypassed: Anti-virus, Digital Certificate Validation, File monitoring, Firewall, Host forensic analysis, Host intrusion prevention systems, Log analysis, Signature-based detection
Version: 1.0
Created: 21 February 2020
Last Modified: 09 July 2020

Mitigations

Mitigation Description
Restrict File and Directory Permissions

Ensure proper process and file permissions are in place to prevent adversaries from disabling or interfering with security/logging services.
Restrict Registry Permissions

Ensure proper Registry permissions are in place to prevent adversaries from disabling or interfering with security/logging services.
User Account Management

Ensure proper user permissions are in place to prevent adversaries from disabling or interfering with security/logging services.

Detection

Monitor processes and command-line arguments to see if security tools or logging services are killed or stop running. Monitor Registry edits for modifications to services and startup programs that correspond to security tools. Lack of log events may be suspicious.

Monitor environment variables and APIs that can be leveraged to disable security measures.