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can the router settings be changed by virus? If it is secured by ISP

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jraju:
Hi, Long time no see to this topic.
                    To Shane, boggins and samson:
                         The avast scan showed vulnerability and i tried with whatever i could do, but still vulnerabilities.
                            Then i thought of downloading the zone alarm , to fix , but i think , it will disable the windows firewall. I raised a thread on this subject, as i had limited knowledge.
                             coming to the story. I waited for reply for that thread, and in the meantime, concentrated the settings in the firewall, windows firewall.
                              I just thought, of going to the advanced settings, and in the firewall settings, i clicked advanced, click inbounds, new rule, and then in the browsed page, selected ports instead of default and in the port, mentioned 21,80, http and ftp ports, and selected all domain, priv,public and other, and selected BLOCK, without knowing what i would have to face.
                              I ran the avast network scan, Oh! the vulnerability has gone and green ticks with words, that router configured correctly and  no vulnerability. Ofcourse, i had changed the admin pw to avoid weak password message. Please see the result for yourself. Thank god, the solution is the settings in the firewall, which default allows these ports, i suppose.
                         A sub query: would this affect my normal internet experience,

Boggin:
It's difficult to know - run ShieldsUp again to see what reports.

I saw your thread about Zone Alarm and Windows Firewall but as I have no experience of Zone Alarm - I didn't respond.

jraju:
GRC Port Authority Report created on UTC: 2016-02-21 at 14:56:53

Results from scan of ports: 0, 21-23, 25, 79, 80, 110, 113,
                            119, 135, 139, 143, 389, 443, 445,
                            1002, 1024-1030, 1720, 5000

    0 Ports Open
    0 Ports Closed
   26 Ports Stealth
---------------------
   26 Ports Tested

ALL PORTS tested were found to be: STEALTH.

TruStealth: PASSED - ALL tested ports were STEALTH,
                   - NO unsolicited packets were received,
                   - NO Ping reply (ICMP Echo) was received.

Boggin:
The router's own firewall should deal with any vulnerabilities without having to do it from the computer.

I don't what the effect of blocking those will be.

Samson:
J, You should be fine with that. I have ALL inbound blocked on my router, never had any problems.

By the way, looks like you have ditched that Teracom piece of junk for a decent D-Link?  :cheesy:

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