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Firewall problem?


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#1
davidlewis

davidlewis

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Hi,tried to log on to my internet and not possible. Did a diagnostic test and the following message came up:
"Windows cannot connect to the internet using HTTP, HTTPS, or FTP. This is probably caused by Firewall settings on this computer. Check the firewall settings for the HTTP port (80), HTTPS (443) and FTP port (21). You might need to contact your Internet service provider (ISP) or the manufacturers of your firewall software".

Contacted internet provider, line is fine (also still able to use wireless from another computer). Can you help re what to do to rectify the problem re firewall or whatever??

many thanks David
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#2
RKinner

RKinner

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What usually happens is the malware sets up a proxy on your computer. Then it forces IE or Firefox to send all traffic going to the internet to the proxy. Since it's a malware proxy it picks and chooses what goes to the internet and keeps you from going to certain anti-malware sites and perhaps sends copies of interesting traffic like passwords and credit cards to another address for harvesting. MBAM or your anti-malware software knows the proxy software is malware so removes it but doesn't realize that it's also a proxy so doesn't change the proxy settings on IE and FF. So now IE or Firefox still sends traffic to the proxy but there is no proxy so it doesn't go anywhere and you have lost connectivity to the internet.

To fix it:

In IE, Tools, Internet Options, Connections, LAN Settings, then uncheck all boxes and OK. Close IE and restart IE.

In FireFox, Tools, Options, Advanced, Settings, check No Proxy then OK. Close Firefox and restart Firefox.

In Chrome, Wrench, Options, Under the Hood, Change Proxy Settings, uncheck all boxes, OK.


Any better? If so follow the guidelines in the top post of the Malware Removal forum
http://www.geekstogo...uide-t2852.html
and post your logs. If not let me know and we will try a few other things.

Ron
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