Virus Found DNSCHanger + Trojan

AjsGuns

Member
What is the DNSChanger?
i brought a 2nd hand laptop and ran AVG it came back with
2 Virus Found DNSChanger
6 Trojan Horses
250+ Cookies

anyways they are all deleted now but im curious as to what is a DNSChanger?
my internet has gone crazy the past 2 days by working sometimes and not working sometimes is this why? if so now that ive deleted it via AVG am i good? also i cant get keylogged can i? as no keylogger was found

~Thanks for ur help
 
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