Microsoft refutes claims of Windows 10 Defender security problem

Windows 10 Security

Windows Defender, also known as Microsoft Defender, has been
around for some time in its current form, and
it’s getting better with every Windows 10 feature upgrade.
A new report, however, claims that Windows Defender has been
updated with a new command line tool that supports a
“-DownloadFile” function.

Advanced customers can use dedicated command line tool
mpcmdrun.exe (Microsoft Antimalware Service Command Line
Utility) to automate Microsoft Defender Antivirus functions.
This feature is found under ProgramFiles > Windows Defender
and it can be executed from a command prompt only.

After a recent update to Windows Defender, security researchers
spotted that the tool can be used to download any file from the
internet. Some researchers went a step further and used Windows
Defender to download malware and ransomware.

It’s believed that Microsoft made this change to Windows
Defender with either version 4.18.2009.9 or 4.18.2007.9.

This can be done by anyone with administrative privileges and
Windows Defender command line tool on Windows 10.

Reports from independent researchers and news outlets suggested
that attackers could abuse Windows Defender’s new feature to
download malware from the internet and take control of your
computer.

However, it was later discovered that Windows Defender will
still detect malicious files downloads and the tool can’t be
used to escalate privileges, which means this new feature is
not a security threat.

In other words, you can download any file (including malware)
but Windows Defender will scan the files and block malicious
files, such as malware or ransomware. Windows Defender cannot
be used to seize system control or infect computers with
security threats.

In a statement, Microsoft has refuted these reports:

Despite these reports, Microsoft Defender antivirus and
Microsoft Defender ATP will still protect customers from
malware. These programs detect malicious files downloaded to
the system through the antivirus file download feature –
Microsoft spokesperson.

The protection applies to Windows 10 Home, Pro, Enterprise, and
other editions of the operating system that comes with Windows
Defender Antivirus software.

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