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StealC and Amadey: Breaking down infostealers and the cybercrime services that deliver them

Blogs.Microsoft •Microsoft Threat Intelligence, Microsoft Defender Security Research Team and Microsoft Digital Crimes Unit • June 24, 2026

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On June 24, 2026, Microsoft’s Digital Crimes Unit (DCU) facilitated the takedown, suspension, and blocking of domains that formed the backbone of the StealC and Amadey infrastructure. This blog is a technical breakdown of StealC and Amadey.

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Operation Endgame Disrupts Evil Corp's SocGholish Malware Network On June 18, 2026, international law enforcement agencies launched Operation Endgame, disrupting the SocGholish malware infrastructure linked to the Russian cybercrime group Evil Corp. The operation resulted in the remediation of 14,971 infected WordPress websites and the takedown of 106 servers and domains associated with the SocGholish botnet. SocGholish, also known as FakeUpdates, exploits compromised legitimate websites to deliver malware disguised as fake software updates, targeting users to gain unauthorized access to their systems. The operation was a collaborative effort involving law enforcement from the Netherlands, Canada, the United States, and Germany, supported by Europol. This action is expected to significantly impact the operations of Evil Corp and its affiliates, limiting their ability to execute further attacks. Authorities have advised website owners to enhance their security measures, including changing credentials and enabling multi-factor authentication. 46 sources 78

StealC and Amadey: Breaking down infostealers and the cybercrime services that deliver them

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Extracted Entities

Attack Types (1)

Malware (2)