Tag Archives: Defender

Security concerns about Microsoft Defender download feature

[English]Microsoft has added a way to download arbitrary files in Defender. However, this download feature causes more headaches than enthusiasm among security experts.

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Microsoft Defender can no longer be disabled under Windows 10

[German]Microsoft has now disabled the ability for administrators to disable the Defender included in Windows. This is intended to make it more difficult for malware to turn off the virus protection. At the same time, the registry entries and group … Continue reading

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Microsoft Defender blocks Citrix services as Trojan

[German]Currently, there is a problem that Microsoft Defender detects Citrix services as Trojans after an update and deactivates these services. But there is a workaround, which is described in a support article.

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Defender blocks redirected Microsoft hosts entries – Part 3

[English]Microsoft has begun to block redirects in the Windows native hosts file that affect Microsoft sites in its antivirus products such as Microsoft Defender. The redirects are flagged as malicious (as HostFileHijack). I already mentioned that in part 2 of … Continue reading

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Defender flags Windows Hosts file as malicious – Part 2

[German]It looks like the Windows Defender has run amok again and considers the Windows hosts file as malicious and complains about it as HostFileHijack. I've had now a few confirmation from other users.

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Why ISL Online: Critical factors when choosing a remote desktop solution

[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...


Windows Defender flags CCleaner as PUP – Part 1

[German]Microsoft's Defender integrated into Windows marks Piriform's CCleaner software as a potentially unwanted program (PUP, Potential Unwanted Program or Potential Unwanted App, PUA).

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SCEP/MSE/Defender: Broken Signatureupdate kills Microsoft Antivirus (04/16/2020)

[German]An update, which may contain a broken signature file, has bricked all Microsoft virus scanners (Windows Defender, Microsoft Security Essential, and System Center Endpoint Protection (SCEP)) since April 16, 2020. The service for performing the virus scan simply crashes. A … Continue reading

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Defender mis-classified Winaero Tweaker as a hacker tool

[German]The tool Winaero Tweaker was mistakenly classified by Windows Defender as a hacker tool or unwanted software and quarantined. But the whole thing seems to be fixed in the meantime.

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Solution for slow start of Windows Server 2016?

[German]Some administrators are complaining about the slow restart of Windows Server 2016 during update installations. A blog reader contacted me about this and I'm bringing up the topic again in a post.

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Issues with Defender Update KB4052623 (March 2020)?

[German]On March 24, 2020, Microsoft released update KB4052623 for the Windows Defender anti-malware platform for Windows 10. Since that time, I have received reports of problems; the offline scan is said to be broken and there are unexpected errors. None … Continue reading

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