Double-click the file named (it will not have a file extension). Step 3: Remove the Malicious Entry Scroll to the bottom of the document. Find the line: 0.0.0.1 mssplus.mcafee.com . Delete this line entirely.
However, some applications and malware strains use as a non-routable placeholder IP address. Because 0.0.0.1 is an invalid address on the internet, any traffic your computer attempts to send to mssplus.mcafee.com is immediately dropped. It acts as a permanent digital brick wall. How Did This Entry Get in Your Hosts File? mssplusmcafeecom 0001 hosts extra quality
: Adware, spyware, or ransomware strains actively rewrite the hosts file. By routing McAfee's update servers to 0.0.0.1 (an unreachable address), the malware ensures your antivirus cannot download new threat definitions, effectively rendering it blind to new infections. Double-click the file named (it will not have
: Some low-tier optimization apps or custom "bloatware removal" scripts forcefully block McAfee Security Scan Plus to minimize background data usage. However, using the illegal IP address 0.0.0.1 instead of the standard loopback address ( 127.0.0.1 ) triggers critical network warnings in third-party anti-malware tools like Malwarebytes . Step-by-Step Security Remediation Protocol Delete this line entirely
By pointing mssplus.mcafee.com to 0.0.0.1 , any active McAfee security product on the system is blinded. It cannot download new virus definitions, leaving the operating system vulnerable to newer exploits.
Malware authors modify the hosts file to achieve two primary objectives:
Windows 10 and 11 include Microsoft Defender , which provides excellent real‑time protection and is free, lightweight, and regularly updated. Many security experts now recommend using Defender as the primary antivirus solution and removing third‑party suites like McAfee unless you have a specific need for their additional features (e.g., identity protection or VPN).