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[GH-ISSUE #4409] Windows security: ALERT: Trojan:Win32/Wacatac.H!ml detected #49270

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opened 2026-04-28 11:04:14 -05:00 by GiteaMirror · 1 comment
GiteaMirror commented 2026-04-28 11:04:14 -05:00
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Originally created by @boessu on GitHub (May 13, 2024).
Original GitHub issue: https://github.com/ollama/ollama/issues/4409

What is the issue?

There is an alarm in Windows Defender which sets the following file under quarantine:
file: %USERPROFILE%\AppData\Local\Programs\Ollama\ollama app.exe

Windows Version: Windows 11 Pro, 23H2

You'll get the warning with update and also if you install it new.

OS

Windows

GPU

AMD

CPU

AMD

Ollama version

0.1.37

Originally created by @boessu on GitHub (May 13, 2024). Original GitHub issue: https://github.com/ollama/ollama/issues/4409 ### What is the issue? There is an alarm in Windows Defender which sets the following file under quarantine: file: %USERPROFILE%\AppData\Local\Programs\Ollama\ollama app.exe Windows Version: Windows 11 Pro, 23H2 You'll get the warning with update and also if you install it new. ### OS Windows ### GPU AMD ### CPU AMD ### Ollama version 0.1.37
GiteaMirror added the bug label 2026-04-28 11:04:14 -05:00
GiteaMirror commented 2026-04-28 11:04:15 -05:00
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@jmorganca commented on GitHub (May 13, 2024):

Hi there, this is a false positive from Windows Defender that seems to have begun to happen again. I've contacted the folks at Microsoft Security Intelligence to make sure we get this fixed. So sorry about that – it should be resolved within a day or so

<!-- gh-comment-id:2108697617 --> @jmorganca commented on GitHub (May 13, 2024): Hi there, this is a false positive from Windows Defender that seems to have begun to happen again. I've contacted the folks at Microsoft Security Intelligence to make sure we get this fixed. So sorry about that – it should be resolved within a day or so
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Reference: github-starred/ollama#49270
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