How to uninstall TR/Sirefef.A.25 from windows pc effectively:
TR/Sirefef.A.25 is categorized as a trojan horse which is usually created to attack on such computer which has less security by various source. This one has ability to change the setting like as homepage, search engine, home page and desktop background. After the installation on any system TR/Sirefef.A.25 perform number of task like as downloading various updates along with this additional malware, then hiding itself from the computer and running payloads. As being from the trojan family this one is capable to perform various malicious activities on the computer. This one crash your computer completely by using the internet as a link to install its executable file into the computer. By this way TR/Sirefef.A.25 makes your computer performance slow, internet speed also gets slow.
With this all you may face complete blue screen which means your computer gets corrupt completely, usually browser redirection to unwanted and illegal site are also the symptoms of TR/Sirefef.A.25 trojan. TR/Sirefef.A.25 spread through the various ways like as malicious web sites, spam email attachment, downloading videos and freeware application from the insure links or various other ways. So, if you click on any of the malicious link you will get infected and above mentioned problem will occur in your system. Therefore you have to remove TR/Sirefef.A.25 at the priority.
Stop visiting site which have unknown information only tell to click on link.
Never download this type of program because it has many additional infected which is more harmful for system and can turn user system in dumb state.