Anthropic-Cybersecurity-Skills/skills/exploiting-ms17-010-eternalblue-vulnerability/SKILL.md

name, description, domain, subdomain, tags, version, author, license, d3fend_techniques, nist_csf, mitre_attack

name	description	domain	subdomain	tags	version	author	license	d3fend_techniques	nist_csf	mitre_attack
exploiting-ms17-010-eternalblue-vulnerability	Detects and exploits MS17-010 (EternalBlue), a critical remote code execution flaw in Microsoft's SMBv1 implementation, using Nmap's ms-17-010 NSE script for detection and Metasploit's ms17_010_eternalblue/ms17_010_psexec modules for exploitation. Use during authorized red-team engagements or penetration tests against legacy Windows environments with unpatched SMBv1 to gain remote code execution.	cybersecurity	red-teaming	red-team adversary-simulation mitre-attack exploitation post-exploitation eternalblue smb remote-code-execution	1.0	mahipal	Apache-2.0	Application Protocol Command Analysis Network Isolation Network Traffic Analysis Client-server Payload Profiling Platform Monitoring	ID.RA-01 GV.OV-02 DE.AE-07	T1595 T1190 T1059 T1078

Exploiting MS17-010 EternalBlue Vulnerability

Overview

MS17-010 (EternalBlue) is a critical vulnerability in Microsoft's SMBv1 implementation that allows remote code execution. Originally discovered by the NSA and leaked by the Shadow Brokers in 2017, it was used in the WannaCry and NotPetya ransomware campaigns. Despite patches being available since March 2017, many organizations still have unpatched systems, making it a viable red team exploitation vector especially in legacy environments.

When to Use

• When performing authorized security testing that involves exploiting ms17 010 eternalblue vulnerability
• When analyzing malware samples or attack artifacts in a controlled environment
• When conducting red team exercises or penetration testing engagements
• When building detection capabilities based on offensive technique understanding

Prerequisites

• Familiarity with red teaming concepts and tools
• Access to a test or lab environment for safe execution
• Python 3.8+ with required dependencies installed
• Appropriate authorization for any testing activities

MITRE ATT&CK Mapping

• T1210 - Exploitation of Remote Services
• T1190 - Exploit Public-Facing Application
• T1569.002 - System Services: Service Execution

Workflow

Phase 1: Vulnerability Scanning

1. Scan target networks for SMB port 445
2. Check for SMBv1 protocol support
3. Run MS17-010 vulnerability check (Nmap NSE script or Metasploit auxiliary)
4. Document vulnerable systems with OS version and patch level

Phase 2: Exploitation

1. Select appropriate exploit variant based on target OS
2. Configure exploit payload (Meterpreter, Cobalt Strike beacon, custom shellcode)
3. Execute exploit against confirmed vulnerable target
4. Verify code execution and establish session

Phase 3: Post-Exploitation

1. Establish persistence on compromised system
2. Dump credentials from memory
3. Use compromised host as pivot point
4. Document exploitation evidence

Tools and Resources

Tool	Purpose
Nmap ms-17-010 NSE scripts	Vulnerability detection
Metasploit ms17_010_eternalblue	Exploitation module
Metasploit ms17_010_psexec	Alternative exploitation
AutoBlue-MS17-010	Standalone Python exploit
CrackMapExec	Mass SMB vulnerability scanning

Detection Indicators

• IDS/IPS signatures for EternalBlue exploit traffic
• SMBv1 negotiation from unusual source hosts
• Event ID 7045: New service installation after exploitation
• Anomalous named pipe activity on SMB
• Large SMB write requests characteristic of buffer overflow

Validation Criteria

• Vulnerable systems identified via scanning
• Exploitation achieved on authorized target
• Code execution confirmed with session established
• Post-exploitation activities documented
• Remediation recommendations provided