Gold Open Source
ExplorePackagesVulnerabilitiesMCP Servers
Login
Gold Open Source

The authoritative source for production-ready open-source components. Every package, container image, AI model, and MCP server undergoes rigorous verification for security, malware, and license compliance.

Explore Gold

  • Explore Everything
  • Packages
  • Gold Packages
  • Container Images
  • AI Models
  • MCP Servers
  • Agent Skills
  • Chip Manufacturers

Security Data & Tools

  • Scan Your Dependencies
  • Trending Threats
  • Threat RSS Feeds
  • CVE Database
  • Actively Exploited (KEV)
  • SGZ Zero-Days
  • CWE Index
  • MITRE ATT&CK
  • Malicious Packages
  • Security Glossary
  • Supply-Chain Report
  • Developers (API & Badge)
  • Chrome Extension
  • Credits & Data Sources

Products

  • The Platform
  • ESSCM
  • Portal
  • TPRM
  • OSM
  • Cowork
  • Code / Runner
  • Guard

Use Cases

  • Know Your Software
  • Auto-Fix Vulnerabilities
  • Asset Discovery
  • AI Governance
  • MCP Server Security
  • Supply Chain Compliance
  • Zero-Day Discovery
  • All Use Cases

Company

  • About
  • Pricing
  • Blog
  • Documentation
  • Safeguard Academy
  • Contact
  • Privacy Policy
  • Terms of Service

© 2026 Gold Open Source. All rights reserved.

Built with care bySafeguard
Home/ATT&CK/Software/S1063
MITRE ATT&CK Tool

Brute Ratel C4 (S1063)

BRc4
ShareXLinkedInRedditHN

[Brute Ratel C4](https://attack.mitre.org/software/S1063) is a commercial red-teaming and adversarial attack simulation tool that first appeared in December 2020. [Brute Ratel C4](https://attack.mitre.org/software/S1063) was specifically designed to avoid detection by endpoint detection and response (EDR) and antivirus (AV) capabilities, and deploys agents called badgers to enable arbitrary command execution for lateral movement, privilege escalation, and persistence. In September 2022, a cracked version of [Brute Ratel C4](https://attack.mitre.org/software/S1063) was leaked in the cybercriminal underground, leading to its use by threat actors.(Citation: Dark Vortex Brute Ratel C4)(Citation: Palo Alto Brute Ratel July 2022)(Citation: MDSec Brute Ratel August 2022)(Citation: SANS Brute Ratel October 2022)(Citation: Trend Micro Black Basta October 2022)

Platforms: Windows

▪Techniques implemented (33)

T1055.002Portable Executable InjectionT1569.002Service ExecutionT1059.003Windows Command Shell
S1063 on MITRE ATT&CK →
T1021.006Windows Remote Management
T1113Screen Capture
T1057Process Discovery
T1027Obfuscated Files or Information
T1047Windows Management Instrumentation
T1036.005Match Legitimate Resource Name or Location
T1021.002SMB/Windows Admin Shares
T1005Data from Local System
T1140Deobfuscate/Decode Files or Information
T1069.002Domain Groups
T1572Protocol Tunneling
T1518.001Security Software Discovery
T1685Disable or Modify Tools
T1036.008Masquerade File Type
T1087.002Domain Account
T1021Remote Services
T1620Reflective Code Loading
T1046Network Service Discovery
T1482Domain Trust Discovery
T1106Native API
T1102Web Service
T1071.004DNS
T1095Non-Application Layer Protocol
T1105Ingress Tool Transfer
T1027.007Dynamic API Resolution
T1497.003Time Based Checks
T1574.001DLL
T1558.003Kerberoasting
T1204.002Malicious File
T1071.001Web Protocols

MITRE ATT&CK® is a registered trademark of The MITRE Corporation. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.