Conexiunea internet dezactivata dupa virusare – ce pot face ?

O alta actiune caracteristica unor tipuri de virusi este dezactivarea conexiunii de internet, fie prin modificarea DNS-urilor utilizate, fie prin resetarea TCP\IP, etc.

Iata 3 metode de a va recupera conexiunea la internet dupa devirusare. De multe ori, o scanare cu Malwarebytes Anti-Malware va rezolva situatia, insa pentru restul cazurilor iata ce puteti face.

1. Click-dreapta pe conexiunea LAN si alegeti Properties. Conexiunea LAN se gaseste in Control Panel >> Network Connections.
In fereastra de proprietati selectati: Internet Protocol Version 4 (tcp/ipv4) si apasati Properties.
Apoi bifati “Use the following DNS server address” si introduceti urmatoarele doua adrese: 208.67.222.222, 208.67.220.220 (furnizate de OpenDNS) sau urmatoarele doua: 203.122.63.152, 203.122.63.154 (furnizate de Spectranet DNS). (vezi poza de mai jos)

2. Pentru utilizatorii Windows XP:
Descarcati Xp TCP\IP Repair de aici: http://www.xp-smoker.com/downloads/xptcprep.exe

Instalati programul, il rulati si apoi apasati pe cele doua butoane “Repair Winsock” si “Repair TCP\IP”.

Pentru utilizatorii Windows Vista, se procedeaza astfel:
Apasati butonul Start si scrieti: cmd in bara de search. Apoi apasati Enter.
Dupa aparitia ferestrei negre, se apasa combinatia de taste: Ctrl-Shift-Enter pentru a rula cmd ca Administrator.
Scrieti netsh int ip reset in fereastra respectiva. Apasati Enter si apoi restartati PC-ul.

Procedati la fel pentru comanda netsh winsock reset.

Pentru conexiunile wireless evitati aceasta metoda si folositi-o daca orice altceva nu a functionat.

3. Pentru Windows Vista:
a. Apasati butonul Start si scrieti: cmd in bara de search. Apoi apasati Enter.
b. Dupa aparitia ferestrei negre, se apasa combinatia de taste: Ctrl-Shift-Enter pentru a rula cmd ca Administrator.
c. Scrieti ipconfig /flushdns in fereastra respectiva. Apasati Enter.

Pentru Windows XP sariti pasul b.

Aceste metode pot fi folosite si atunci cand conexiunea la internet nu functioneaza din alte motive, in afara unei infectari a PC-ului.

Administrator FaraVirusi.com
voluntar al Comodo Malware Research Team, expert Malwarebytes Anti-Malware

6 responses to “Conexiunea internet dezactivata dupa virusare – ce pot face ?”

  1. Dorin

    Domnule Radu eu ma pricep mai putin la PC,de o vreme cand incerc sa intru pe unele site-uri imi apare fereastra “Microsoft Internet Explorer,A script on this page is causing Internet Explorer to run slowly.If it continues to run,your computer may become unresponsive.Do you want to abort the script?…Yes…No….”Ce as face nu mai pot intra pe site-ul respectiv ,sa fie un virus sau e de vina PC-ul?Multumesc.

  2. George

    Dorin, incearca asta: ftp://ftp.drweb.com/pub/drweb/cureit/launch.exe
    Scanezi cu el FUUL ! Succes !

  3. Dorin

    Multumesc mult,se pare ca nu voi mai avea probleme!

  4. ALIN

    salut.am folosit proxy…si akum numai pot intra pe mess…si pe internet explorer…ce pot face…proxy l-am eliminat….

  5. mariuscalina

    Am si urmatoarea problema: am virusat calculatorul, iar dupa devirusare nu ma mai pot conecta la internet (am internet de la Romtelecom). Am incercat la un prieten pe Rds si merge. Am urmat pasi de mai sus si nu merge, iar eroarea este urmatoarea: Last diagnostic run time: 05/06/12 11:24:08
    Network Adapter Diagnostic
    Network location detection

    info Using home Internet connection
    Network adapter identification

    info Network connection: Name=Local Area Connection 8, Device=Realtek RTL8139 Family PCI Fast Ethernet NIC, MediaType=LAN, SubMediaType=LAN
    info Network connection: Name=Local Area Connection 7, Device=Realtek RTL8168/8111 PCI-E Gigabit Ethernet NIC, MediaType=LAN, SubMediaType=LAN
    warn This machine has more than one Ethernet or more than one Wireless adapter
    info Redirecting user to support call

    HTTP, HTTPS, FTP Diagnostic
    HTTP, HTTPS, FTP connectivity

    warn FTP (Passive): Error 12029 connecting to http://ftp.microsoft.com: A connection with the server could not be established
    warn HTTP: Error 12152 connecting to http://www.microsoft.com: The server returned an invalid or unrecognized response
    warn HTTPS: Error 12152 connecting to http://www.microsoft.com: The server returned an invalid or unrecognized response
    warn HTTPS: Error 12031 connecting to http://www.passport.net: The connection with the server was reset
    warn HTTP: Error 12031 connecting to http://www.hotmail.com: The connection with the server was reset
    warn FTP (Active): Error 12029 connecting to http://ftp.microsoft.com: A connection with the server could not be established
    error Could not make an HTTP connection.
    error Could not make an HTTPS connection.
    error Could not make an FTP connection.

    Acum incerc o scanare si cu dr.Web. Va rog ajutati-ma sa ies din problema asta.

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