Question about SonicWALL PRO 230 Firewall

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Sonicwall firewall has trojan attack.

If we browse any URL outside of server it shows virus attack but if we browse the same URL through server it does not show any virus though both side has same antivirus.
We have deployed firewall behind switch and all servers and also we have scanned all servers but could not found any attack.

Also it shows the attack only when URL is browsed at port 80.
Please can you give us solution as this is SOS situation.

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  • oriensoft Jun 03, 2008

    I'll explain my architecture and my issue exactly.

    We have sonicwall 3060 firewall and then 1 switch and then more than 10 servers attached to it.

    When we browse any website hosted on those servers from outside of server we get virus warning and if we check the page source we find the "iframe" line added but same page if we check from server or even the code of that page we could not able to find the that iframe line.

    We have scanned the servers with 4 different antivirus but could not find anything.

    The strange thing is that only if we browse website on 80 port it given trojan warning but if we use any other port we could not get any virus warning.


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What kind of fire wall and anti virus are you useing ? I have found that the best you can find is AVG. 8.0 if you use it and the Windows Denfender together they are the best,AVG can find all trojans downloaders loops lops and any kind of worms imagen,alot of viruses we have cleaned seem to hide behind the windows files themselves,as you corner them they will pop up. Where as if the mcfee and norton are constally dormit they don't seem catch all the new viruses,try switching for an instant,and Avg will pretty much corner any kind of viruses you have and send me the out come of what is happened please thank you lala linda

Posted on Jun 03, 2008

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