Good day, faced with such a problem that Avast does not see a malicious site 2Inf.net.Guys add to check on the following registry keys:
HKCU-> microsoft-> startpage-> 2inf.net
HKCU-> SOFTWARE-> microsoft-> SPEEDDIALMAKER => (delete all values)
HKCU-> SOFTWARE-> microsoft-> shortcutmaker => (delete all values)
HKCU-> SOFTWARE-> microsoft-> uouaPlugin = (nb_lifetime = 1421153092) => (look for this value in the registry))
HKU-> S-1-5-21-3508146036-1331120853-3165017604-1000 \ software \ microsoft \ windows \ currentversion \ run \ cmd.exe / c => (remove completely this value)
after half an hour registry repair everything began to work as before.
If you have any questions, please, try to help, and yes, it can be in different versions, so what is written in the internet does not work.