A browser hijacker (e.g., Search Marquis, WeKnow, or a generic adware extension) has taken control of your new tab page or default search engine. When you try to navigate to a legitimate activation page (e.g., for Abvent software), the hijacker redirects you through a series of malformed URLs, eventually landing on http://127001/activationabventcom or a search results page for that string.
: Search for "Notepad" in the Start menu, right-click it, and select Run as Administrator . 127001 activationabventcom
The core of this string relies on the concept of the "loopback." In networking, the IP address range beginning with 127 is reserved for the local machine. When a computer attempts to contact 127.0.0.1 , it is essentially picking up the phone and dialing its own number. It bypasses the network interface card, the router, and the outside internet entirely. A browser hijacker (e
Unlikely, but let's address it fairly.