How to find Keylogger Installed on mac
I am worried that my mac have a keylogger installed silently.
I always keep my eye on Activity Monitor Network for checking bandwidth usage. Well , few days ago i installed plugin on chrome called TamperMonkey & then installed a script (it offcourse warned) . After then definitely my mac got infected . Whenever i open website on any browser it pops up a random link (mostly wonderland.com) . And with that my Activity Monitor Network shows constant usage of downstream and upstream even if all apps are closed . Even it Activity Monitor dont shows any apps using .(The Network Usage Starts after few hours of logging ). I am definitely sure that theres a virus and maybe even a keylogger .
I tried locating any unknown installed applications but found nothing suspicious.
I reseted browsers completely.
I deleted cache using CCleaner.
I also scanned using Avast / Avira / AntiMalwareByte.
None of scanners shows any malware or virus or anything , but still the virus still remains . Please help me i cant work anything since i worried about my personal information.
MacBook Pro with Retina display, OS X Yosemite (10.10.5)