Can't delete malware agent osx 10.7.5
Hello!
So I've been trying for days searching the internet for a way to delete this agent. I ran Clamxav and deleted all the infected files, as well as deleting mackeeper. Except this one file won't delete, I put it in my trash but it won't empty because it says it's still running. I tried to download Malwarebytes but it said my os is too old to run it. I am still getting lots of ads in my chrome as of now, but no more mackeeper stuff. I also have deleted my extensions in chrome and this did not help with the ads. I really can't figure out how to delete this one last thing!
the filename is
agent.app
infection name is
adware.osx.vsearch
It's on my desktop now, so the path is
/Users/me/Desktop/agent.app
MacBook Pro, Mac OS X (10.7.5)