Located typically at C:\Windows\System32\drivers\etc\hosts , this file acts as a local directory for mapping hostnames to IP addresses. It is one of the earliest mechanisms used in computer networking to resolve domain names before the modern Domain Name System (DNS) became the standard.
: Some third-party "privacy" or "host-modding" tools add this entry to stop what they perceive as "nagware" or telemetry from McAfee, though this can inadvertently break security features. How to Fix a Corrupted Hosts File mssplus.mcafee.com 0.0.0.1 hosts
To understand the controversy and confusion surrounding this specific entry, one must first understand the function of the hosts file itself. How to Fix a Corrupted Hosts File To
The hosts file entry 0.0.0.1 mssplus.mcafee.com is commonly associated with adware or malware attempting to redirect security software traffic. To remove this threat, delete the line from the Windows hosts file as an administrator, uninstall McAfee Security Scan Plus, and run a thorough scan with dedicated anti-malware tools. For detailed removal steps, see the discussion at Bleeping Computer For detailed removal steps, see the discussion at
A: No. Legitimate McAfee products do not modify the Hosts file to block their own update servers. That would be self-sabotage. Any claim that "McAfee Support added this" is false.