"msecnd.net" domain name is empty. So no information about what they do. The name "msecnd.net" includes "cdn" which usually stands for "Content delivery network". The goal of CDN is to distribute service spatially relative to end-users to provide high availability and high performance. Read more at https://en.wikipedia.org/wiki/Content_delivery_network
This domain name is owned by the for profit corporation Microsoft Corporation. Source at https://gwhois.org/msecnd.net+dns
This domain name is used by https://answers.microsoft.com
Related question at https://answers.microsoft.com/en-us/feedback/forum/fdbk_commsite-bug/what-is-msecndnet/7cdd801f-949a-4734-a838-534a6a831f14?auth=1
During the last 7 days potentially active malware was detected on a subdomain. However, no threats were detected on the main website.
Malware Found: 4
Safety Rating: Caution
Compromised Pages: 93
These are the top viruses found on this site by the percentage of total detections they caused during the last 30 days.
1 Trojan horse Generic 88 %
2 DownloadAssistant 6 %
3 JS/Worm 2 %
4 MDAC ActiveX code execution 1 %
Last reported malware activity
Apr 08, 2016 (6 days ago)
Days with malware in last month
12 days (40% of total)
Days with malware in last year
165 days (45% of total)
Google’s Safe Browsing Site Status
Current status: Partially dangerous
Some pages on msecnd.net contain deceptive content right now.
Site Safety Details
***** Some pages on this website install malware on visitors' computers.
***** Attackers on this site might try to trick you to download software or steal your information (for example passwords, messages, or credit card information).
***** Some pages on this website send visitors to dangerous websites.
***** Dangerous websites have been sending visitors to this website, including: downfrefile.com, 5frefile.com, and anddownload.com.
Safety Scan Report
Malc0de ***** Alert
This site blocks access to the security scanner(s) shown below:
Cannot open site directly.
Partially dangerous: Some pages on msecnd.net contain deceptive content right now. Some pages on this website send visitors to dangerous websites. Some pages on this website install malware on visitors' computers. Attackers on this site might try to trick you to download software or steal your information (for example passwords, messages, or credit card information). Dangerous websites have been sending visitors to this website, including: anddownload.com, download366.com, and adnetworkperformance.com. We last updated our information about msecnd.net on March 6, 2016.
This is part of the Microsoft Network cloud based services (So reserved). It is also needed to access Skype Web page.
Reported on Virustotal by 2 companies as either malicious or malware. (https://www.virustotal.com/en/url/37b0982045cead2b8e63b0132c1264687b985c40a683436d1a3b3c4263854e37/analysis/1453119386/)
Google Safe Browsing shows this site as partially dangerous. (https://www.google.com/transparencyreport/safebrowsing/diagnostic/index.html#url=msecnd.net) Google reports links on the site DO install malware (As opposed to being directed to third party sites).
URLVoid reports a single contributor reporting this site as malicious (Malc0de.com) but when checked on that site, there was no listing. (http://malc0de.com/database/index.php?search=msecnd.net refers).
Whilst this site is needed to access substantial parts of MS Network Services, it should only be temporarily allowed as needed and only with a good firewall, antivirus and script blocker.
What happened when Google visited this site?
Of 9607 pages tested on the site over past 90 days, 8 page(s) resulted in malicious software being downloaded and installed without user consent. The last time Google visited this site was on 2015-08-07, and the last time suspicious content was found on this site was on 2015-08-02. Malicious software includes 10 virus, 10 trojan(s), 2 exploit(s).
This site was hosted on 2 network(s) including AS15133 (EDGECAST), AS15169 (GOOGLE).
Has this site acted as an intermediary resulting in further distribution of malware? Over the past 90 days, msecnd.net did not appear to function as an intermediary for the infection of any sites.
Has this site hosted malware? Yes, this site has hosted malicious software over the past 90 days.