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Tag: fake-windows-update

October 27, 2026 — Malware Analysis

CloakGuard: a signed “remote management” agent that fakes a blue screen while someone uses your PC

A code-signed Go agent calling itself CloakGuard hides as SgrmBroker.exe, makes itself unkillable, can disable Defender, and paints a fake blue screen the operator can see straight through.…

October 2, 2026 — Malware Analysis

The “Windows Update” That Writes Down Your Password

A signed fake Windows Update prompt that saves every password typed into it, wrong ones included, and shares an EV certificate with a hidden Xray tunnel DLL.

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