Jaff is an encryption virus, which means that you files will be unavailable. Jaff ransomware is distributed though the spam email, by opening which, your system becomes infected. After penetration, malware starts to scan amd to encrypt all targeted files which include documents, photos, videos, music files, archives and so on.
Popular123.com is a sneaky hijacker that gets inside will destroy the normal operation of your browser. After installation, it modifies browser configuration and then sets http://popular123.com/ page as your homepage and search engine. At first sight, there is nothing suspicious, but using this search engine, users put the system at risk.
Search.gamekapow.com (Search.tagadin.com) is a search engine which acts like a browser hijacker. An obvious sign of this is method of distribution. Search.gamekapow.com is installed secretly through the other software.
This malware seeks to mislead credulous users by displaying scam messages. After penetration, Security-breach.net hijacks all your browsers and insects its own advertisement. Subsequently, you will see random pop-up windows containing message that your computer is infected with an adware or another malware.
Paydotcom.com is a browser hijacker that can change browser settings without your participation. This is manifested in altering homepage and search engine, appearance of annoying ads, random redirects to dubious webpages. Paydotcom.com is not virus, but its actions greatly reduces browsing experience.