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Operation Endgame seizes Gootloader, CastleRAT and StealC servers

Original title: Operation Endgame malware takedown turns up over 6 million stolen logins

Help Net Securityby Mirko Zorz ()1 min read
Part of a story covered by 6 sourcesPolice seize Gootloader, CastleRAT and StealC servers and millions of loginsMerged summary & timeline
AI summary · x-ai/grok-4.7Summaries by Vani AI

Police in nine countries and Europol seized 235 servers and 257 domains and recovered more than 6 million stolen logins.

Europol said the latest Operation Endgame action took infrastructure from the Gootloader, CastleRAT and StealC malware operations and recovered more than 6 million credentials stolen from infected computers. Suspects sold harvested logins that buyers used for further attacks, including ransomware. CastleRAT victim data will go to notification services including Have I Been Pwned. Gootloader infections began with fake legal documents on compromised websites, often WordPress, and 681 infected sites were cleaned.

Unconfirmed: Europol’s description of ransom payments and of how the stolen logins were used is not independently confirmed in the report.

Key facts
  • Gootloader lost 14 servers and 218 domains; CastleRAT 120 servers and 39 domains.
  • StealC lost 102 servers, continuing action that began in June 2026.
  • Europol links CastleRAT to encrypted data, crippled IT and ransom payments.
  • StealC collected passwords, saved logins and digital identities for sale.
Security assessment · AI, from the article

Impact: More than 6 million stolen logins recovered from infected computers

What to do
  1. 1.WordPress users should change credentials, enable multi-factor authentication and patch vulnerabilities.
Analyze this story with Vani AIImpact, who is affected and what defenders should do, in a new chat

From the original article

1 min read at helpnetsecurity.com

Police in nine countries, working with Europol, took down servers behind the Gootloader, CastleRAT and StealC malware operations this week and recovered more than 6 million credentials stolen from infected computers. Europol announced the action as the latest round of Operation Endgame, the international campaign against the services that give ransomware gangs their way into a network.

Help Net Security

By Mirko Zorz · helpnetsecurity.com

Read the full article at Help Net Security

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.