CVSS 9.8 CRITICAL Bulletin: MS17-010 Published: 2017-03-14

CVE-2017-0144: Microsoft Windows SMBv1 Remote Code Execution (EternalBlue / MS17-010)

Technical intelligence and weaponization dossier for CVE-2017-0144. Documented exploitation across 8 active malware families totaling 6,283 analyzed telemetry samples.

Attributed Families
8
Sample Volume
6,283
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Official NIST NVD
View NVD Record →

Vulnerability Specifications & Root Cause

Vulnerability ID CVE-2017-0144
Common Name / Bulletin Microsoft Windows SMBv1 Remote Code Execution (EternalBlue / MS17-010) (MS17-010)
CWE Classification CWE-119: Buffer Overflow in SMBv1 Driver (srv.sys)
Affected Software & Versions Microsoft Windows XP, Vista, 7, 8.1, 10, Server 2003, 2008, 2012, 2016
Technical Root Cause Mathematical error in SMBv1 buffer length calculation when handling SrvOs2FeaListSizeToNt in srv.sys. Shadow Brokers leak, weaponized in WannaCry and NotPetya global pandemics.
Associated ATT&CK Techniques
  • T1210 — Associated ATT&CK Technique
  • T1055 — Associated ATT&CK Technique

Malware Families Weaponizing CVE-2017-0144

Empirical catalog telemetry verifies that the following 8 malware families weaponize this vulnerability for initial access, privilege escalation, or lateral movement:

8 families
Malware Family Category Catalog Samples Operational Profile
wannacryRansomware Worm4,876WannaCry (cataloged across security vendors and intelligence agencies as WanaCrypt0r, WCry, WannaCrypt, and Ransom.WannaCry) is an unprecedented global ransomwa...
trickbotTrojan466TrickBot (often dubbed Trickloader or Totep) is one of the most prolific and dangerous modular trojans and enterprise access vectors in modern cybercrime histor...
maenerCryptominer387Maener (cataloged by security vendors as Trojan:Win32/Maener, Trojan.Win32.Maener, Worm:Win32/Maener, and Bindmaener) is a persistent cryptocurrency mining troj...
tofseeSpam Bot264Tofsee (also widely cataloged as Gheg, Backdoor.Win32.Tofsee, and Spambot.Tofsee) is an extraordinarily resilient and sophisticated multi-purpose modular trojan...
bsymemRansomware144Trojan:Win32/Bsymem (cataloged across vendor telemetry as Trojan.Bsymem or Ransom.Bsymem) is a stealthy dual-stage remote access backdoor and enterprise ransomw...
petyaRansomware121Petya is one of the most historically destructive malware architectures ever deployed. Originally developed in early 2016 as a commercial ransomware strain by a...
crysisRansomware24Ransomware:Win32/Crysis (widely tracked in subsequent major evolutionary variants as Dharma) is a prolific, destructive Ransomware-as-a-Service (RaaS) that emer...
killdiskWiper1Trojan:Win32/KillDisk is a catastrophic industrial wiper malware family developed and deployed by Russian military intelligence hackers belonging to the Russian...

Attributed Threat Actors & Syndicates

Threat intelligence confirms the following adversaries weaponize CVE-2017-0144 in enterprise intrusions and campaign toolkits:

SOC Detection & Threat Hunting Guidance

Threat hunting leads and behavioral telemetry patterns to identify weaponized exploitation of CVE-2017-0144 in enterprise networks:

Snort/Suricata SID: 2024218 (ET EXPLOIT Possible ETERNALBLUE MS17-010 Echo Response); SMB traffic on port 445 containing NT_TRANSACT_SECONDARY requests with mismatched DataOffset.

Remediation & Defensive Hardening

SOC containment checklist and attack surface reduction measures to neutralize exploitation:

Actionable Guidance: Install MS17-010 security bulletin; unconditionally disable SMBv1 feature via PowerShell (Disable-WindowsOptionalFeature -Online -FeatureName SMB1Protocol); block port 445 at firewall.

For end-to-end incident response procedures, consult our dedicated playbook: Ransomware Containment & Incident Response →

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