<p>I opened up my GUIMiner and I got a rather unfriendly "Win32/CoinMiner" threat of "Medium."</p>

<p>I installed this program knowingly, so should I be concerned? Is this just a problem because people have been installing miners on people's machine unknowingly (which would be a bad thing)?</p>

CC BY-SA 3.0
2014-02-09T10:22:22.397Z
>>people have been installing miners on people's machine unknowingly (which would be a bad thing)? - Correct.
steve cook
<windows><guiminer><malware>
Why are coin miners (such as GUIMiner) a "threat" in Windows Defender?
Jerr
# Why are coin miners (such as GUIMiner) a "threat" in Windows Defender?

(Asked by: username_0 on 2011-09-03)

I opened up my GUIMiner and I got a rather unfriendly "Win32/CoinMiner" threat of "Medium."

I installed this program knowingly, so should I be concerned? Is this just a problem because people have been installing miners on people's machine unknowingly (which would be a bad thing)?

**Tags:** windows, guiminer, malware

> **Comments:**
> **username_1**: >>people have been installing miners on people's machine unknowingly (which would be a bad thing)? - Correct.  

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