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Ransomware group profile · #131 by claimed victims

Wannacry ransomware

WannaCry ransomware is a cyber attack that spreads by exploiting vulnerabilities in the Windows operating system. At its peak in May 2017, WannaCry became a global threat. Cybercriminals used the ransomware to hold an organization's data hostage and extort money in the form of cryptocurrency. WannaCry spreads using EternalBlue, an exploit leaked from the National Security Agency (NSA). EternalBlue enables attackers to use a zero-day vulnerability to gain access to a system. It targets Windows computers that use a legacy version of the Server Message Block (SMB) protocol.

Active First seen May 2017
33Victims claimed on leak sites
0Victims in the last 30 days
0Victims in the last 90 days
15Countries hit
0Leak-site URLs tracked
23 Feb 2018Latest claim recorded

Victimology

Who Wannacry claims to have breached, from 33 leak-site posts recorded by VULONE.

Claims per month last 12 months

Oct 2025: 0OctNov 2025: 0Dec 2025: 0Jan 2026: 0JanFeb 2026: 0Mar 2026: 0Apr 2026: 0AprMay 2026: 0Jun 2026: 0Jul 2026: 0JulAug 2026: 0Sep 2026: 0

Top sectors

Government & Defense10
Manufacturing5
Technology5
Energy & Utilities3
Transportation3
Financial Services3
Retail & E-Commerce2
Healthcare1

Top countries

United States6
China4
Russia3
Brazil3
Singapore2
United Kingdom2
Spain2
India1

Latest claimed victims 12 most recent

VictimSectorCountryClaimed
State of Connecticut (12 State Agencies, including the Department of Administrat Government & Defense US 23 Feb 2018
Becker County Government & Defense US 16 Aug 2017
Murfreesboro PD and FD Government & Defense US 1 Jul 2017
Honda Motor Co. honda motor co. Manufacturing 19 Jun 2017
Telkom Technology ZA 16 May 2017
Rensselaer County Library Education US 15 May 2017
Indian police in the state of Andhra Pradesh Government & Defense IN 12 May 2017
MediaOnline Technology SG 12 May 2017
FedEx fedex.com Transportation US 12 May 2017
MegaFon Technology 12 May 2017
Russian Interior Ministry Government & Defense RU 12 May 2017
Chinese traffic police, immigration and public security bureaus Government & Defense CN 12 May 2017

All 33 Wannacry victims, searchable

Full victim list with claim posts, domains, timing and exports, plus the negotiation chats and leak-site screenshots VULONE archives for this crew.

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Tactics, techniques and procedures

ATT&CK technique mapping for Wannacry is in progress. Victimology, infrastructure status and leak-site tracking are live above.

Indicators, detections and the full playbook

Hashes, C2 addresses, onion services, Sigma and YARA detections per technique, and the negotiation transcripts are available to signed-in analysts.

See full IOCs

Frequently asked

Is Wannacry ransomware still active?
Wannacry is tracked as active. The most recent leak-site claim VULONE recorded is dated 23 February 2018.
How many victims has Wannacry claimed?
VULONE has recorded 33 leak-site victim claims attributed to Wannacry since May 2017, across 15 countries and 9 sectors.
Which industries does Wannacry target?
The sectors most often named on the Wannacry leak site are Government & Defense, Manufacturing, Technology.
Which countries are most affected by Wannacry?
Most Wannacry victims recorded by VULONE are located in United States, China, Russia.
Where does VULONE get Wannacry victim data?
Claims are collected continuously from the group's own leak sites and cross-checked with ransomware.live and RansomLook. A claim is the group's assertion, not a confirmed breach.

Other ransomware groups

Victim claims are collected from leak sites and enrichment partners (ransomware.live, RansomLook) and represent the group's own assertions, not confirmed breaches. Profile last updated 16 September 2026. Questions or corrections: [email protected].