AVG has detected "Trojan horse Patched_c.LYU". This appears to cause internet search redirections and block anti-virus sites, at a minimum. As it is "white-listed" according to AVG, it cannot be removed. Malwarebytes does not seem to recognize this Trojan Horse, although it detects others, supposedly cleans these others, but then they reappear as soon as I do another scan. Is Patched_c.LYU a backdorr trojan horse like Patched_c.LXT, and going to require a reformatting of my computer. I would appreciated any assistance.
