S0366: WannaCry
Security context for executives and security teams
S0366: WannaCry describes [WannaCry](https://attack.mitre.org/software/S0366) is ransomware that was first seen in a global attack during May 2017, which affected more than 150 countries. It contains worm-like features to spread itself across a computer network using the SMBv1 exploit EternalBlue.(Citation: LogRhythm WannaCry)(Citation: US-CERT WannaCry 2017)(Citation: Washington Post WannaCry 2017)(Citation: FireEye WannaCry 2017)
Executive priority
S0366: WannaCry is an official MITRE ATT&CK software. Glexia treats it as defensive behavior context for prioritizing monitoring, control validation, and response planning without using the object by itself as an attribution claim.
Technical view
Security teams should validate S0366: WannaCry by reviewing the official ATT&CK relationships, mapped tactics (the mapped ATT&CK tactic context), supported platforms (Windows), and available local telemetry before making detection or mitigation decisions.
Likely telemetry
- Official ATT&CK relationships and object metadata
- Network, endpoint, and security-tool telemetry
Detection direction
- Validate whether S0366: WannaCry appears in your detection coverage and tabletop scenarios.
- Use the object to align executive risk language with SOC, incident response, and detection engineering work.
- Do not treat ATT&CK relationship context as attribution without corroborating evidence.
Mitigation priorities
- Map the object to existing controls and identify missing telemetry or response ownership.
- Prioritize mitigations that reduce exposure on the listed platforms and tactics.
- Review adjacent ATT&CK relationships before changing policy, detections, or reporting language.
Additional notes and limits
Baseline Glexia take generated from the official MITRE ATT&CK STIX object, source hash, tactics, platforms, and detection fields. It is safe to replace with a richer model-generated take for the same source hash later.
This baseline take is source-grounded and schema-validated, but it does not include environment-specific telemetry, incident evidence, or threat-intelligence corroboration.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
WannaCry
How security teams should use this page
Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.
Techniques used
This mirrors the MITRE pattern of making group, software, campaign, and technique relationships scannable. Relationship notes come from mirrored ATT&CK relationship text when available.
| Domain | ID | Name | Relationship / procedure |
|---|---|---|---|
| Enterprise | T1210 | Exploitation of Remote Services | |
| Enterprise | T1489 | Service Stop | |
| Enterprise | T1083 | File and Directory Discovery | |
| Enterprise | T1120 | Peripheral Device Discovery | |
| Enterprise | T1486 | Data Encrypted for Impact | |
| Enterprise | T1047 | Windows Management Instrumentation | |
| Enterprise | T1563.002 | RDP HijackingSub-technique | |
| Enterprise | T1490 | Inhibit System Recovery | |
| Enterprise | T1018 | Remote System Discovery | |
| Enterprise | T1564.001 | Hidden Files and DirectoriesSub-technique | |
| Enterprise | T1016 | System Network Configuration Discovery | |
| Enterprise | T1222.001 | Windows PermissionsSub-technique | |
| Enterprise | T1090.003 | Multi-hop ProxySub-technique | |
| Enterprise | T1573.002 | Asymmetric CryptographySub-technique | |
| Enterprise | T1543.003 | Windows ServiceSub-technique | |
| Enterprise | T1570 | Lateral Tool Transfer |
Groups, software, and campaigns
G0032: Lazarus Group
Lazarus Group is a North Korean state-sponsored cyber threat group attributed to the Reconnaissance General Bureau (RGB). [1] [2] Lazarus Group has been active since at least 2009 and is reportedly responsible for the November 2014 destructive wiper attack on Sony Pictures Entertainment, identified by Novetta as part of Operation Blockbuster. Malware used by Lazarus Group correlates to other reported campaigns, including Operation Flame, Operation 1Mission, Operation Troy, DarkSeoul, and Ten Days of Rain.[3]
North Korea’s cyber operations have shown a consistent pattern of adaptation, forming and reorganizing units as national priorities shift. These units frequently share personnel, infrastructure, malware, and tradecraft, making it difficult to attribute specific operations with high confidence. Public reporting often uses “Lazarus Group” as an umbrella term for multiple North Korean cyber operators conducting espionage, destructive attacks, and financially motivated campaigns.[4][5][6]
All related ATT&CK context
Object version and sync metadata
The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates.
Imported snapshots across ATT&CK releases(3)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 20.0 | 1.1 | Current bundle | 341f1fe9cc7d… | ||
| 19.2 | 1.1 | Older bundle | 341f1fe9cc7d… | ||
| 19.1 | 1.1 | Older bundle | 341f1fe9cc7d… |
Mirrored ATT&CK source object
The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.
External references and citations
MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.
- [1]LogRhythm WannaCry
Noerenberg, E., Costis, A., and Quist, N. (2017, May 16). A Technical Analysis of WannaCry Ransomware. Retrieved December 8, 2024.
Open source URL - [2]US-CERT WannaCry 2017
US-CERT. (2017, May 12). Alert (TA17-132A): Indicators Associated With WannaCry Ransomware. Retrieved March 25, 2019.
Open source URL - [3]Washington Post WannaCry 2017
Dwoskin, E. and Adam, K. (2017, May 14). More than 150 countries affected by massive cyberattack, Europol says. Retrieved March 25, 2019.
Open source URL - [4]FireEye WannaCry 2017
Berry, A., Homan, J., and Eitzman, R. (2017, May 23). WannaCry Malware Profile. Retrieved March 15, 2019.
Open source URL - [5]SecureWorks WannaCry Analysis
Counter Threat Unit Research Team. (2017, May 18). WCry Ransomware Analysis. Retrieved March 26, 2019.
Open source URL - [6]WCry
(Citation: LogRhythm WannaCry)(Citation: SecureWorks WannaCry Analysis)
- [7]WanaCry
(Citation: SecureWorks WannaCry Analysis)
- [8]WanaCrypt
(Citation: SecureWorks WannaCry Analysis)
- [9]WanaCrypt0r
(Citation: LogRhythm WannaCry)
- [10]mitre-attackS0366Open source URL
Source: MITRE ATT&CK®. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation. Glexia is not affiliated with or endorsed by MITRE.