Antivirus Soft is a rogue anti-spyware and ransomware program from the same family as Antivirus Live. These infections are installed on to your computer through the use of malware that installs the program onto your computer without your permission or knowledge. It is also common for this rogue to be installed on your computer through the use of malicious PDF files that exploit known vulnerabilities in older versions of Adobe Reader. Once installed, Antivirus Soft will be configured to start automatically when Windows starts. Once running it will scan your computer and display numerous infections, but will state it will not remove them until you purchase the program. In reality, the infected files it detects are all fake and do not actually exist on your computer.
This program also uses aggressive techniques to protect itself from being removed by anti-malware programs. When the Antivirus Soft process is running it will close almost any running program while falsely stating that they are infected. Antivirus Soft will also change the Proxy settings in Internet Explorer so that you cannot browse to any web site other than the site for Antivirus Soft so that you can purchase the program. It does this so that you cannot browse the web to find removal guides or download software that will help you remove the infection.
