Tag Archives: Defender

Windows Defender: Fixes, Issues and Log4j scanner false alarms

[German]At the end of the year, here is a small collection of articles about Microsoft's antivirus solution Defender. For Windows Server 2019, a problem with Defender has probably been fixed with the December 2021 updates. On the other hand, a … Continue reading

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Microsoft Defender Version 1.353.1874.0 version 1.353.1874.0 incorrectly reports Emotet

[German]A brief note for administrators. Microsoft Defender reportes a PowEmotoet.SB infection has been blocked and quarantined and possibly triggers Microsoft Office? This is a false alarm, which was triggered by an update of the signature files to version 1.353.1874.0. Here … Continue reading

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Windows Server 2019/2022: Microsoft Defender for Endpoint fails after Nov. 2021 updates

[German]Short message for administrators who are already productive with Windows Server 2019 or even Windows Server 2022 and use Microsoft Defender for Endpoint as virus protection. Microsoft has admitted that after installing certain updates on these Windows Server versions, problems … Continue reading

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Windows 11: Defender bypass with sandbox evasion

[German]It looks like Windows Defender can be bypassed, allowing malware to evade the sandbox and access the operating system. A piece of information just came to my attention where a security researcher outlines this exact scenario for Windows 11. Here's … Continue reading

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Turn off Defender in Windows with symbolic links

[German]Symbolic links allow to disable Defender as antivirus protection under Windows without disabling features like Tamper Protection. The approach simply lets Defender run into the woods during scanning, because the virus scanner is redirected to other folders. I came across … Continue reading

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Microsoft Defender for Endpoint Plan 1

[German]Ransomware is the biggest threat to businesses – and smaller companies in particular often lack the resources for a security solution. Microsoft has therefore introduced a new subscription for its antivirus solution Microsoft Defender for Endpoint. The so-called Plan 1 … Continue reading

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Windows Server 2019: VM dops BSOD due to Windows Defender

[German]German blog reader Carsten W. has already pointed out to me a few days ago a problem that was bothering him a bit. A virtual machine with Windows Server 2019 running under VMware ESX had gone bye-bye with a blue … Continue reading

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Windows 8.1/Server 2012 R2: KB5003681 blocks Defender real-time protection (Error 0x800705b4)

[German]After installing the June 2021 security update KB5003681 (Security Only Quality), some users are finding that Windows Defender's real-time protection no longer opens on Windows 8.1 and Windows Server 2012 R2. After uninstalling the update, everything works again. However, there … Continue reading

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Microsoft Defender floods Windows system drive with files (May 2021)

[German]Quick question to see if any of you are affected. Microsoft Defender, which is included by default in Windows, seems to have been running amok for a few hours now, creating and leaving thousands of files on Windows servers (and … Continue reading

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Microsoft Defender blocks crypto-jacking attempts

[German]Microsoft has added functionality to its Microsoft Defender for Endpoint to detect and eliminate attacks from crypto miners on protected systems. This uses Intel Threat Detection technology on Intel Core processors and the Intel vPro platform. Advertising

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