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I am trying to hack windows server 2003 sp2, i can see a lot of services running on target, there is also a lot of backdoors listing on ports like netbus, remote-everything .... But Firewall (as i guess) is refusing any tcp connection, except on some ports is there any way to bypass the firewall?

note: I am using Metasploit

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UDP spoofing is my best guess, can you tell which version of the networking it runs? – Andrew Smith Aug 2 '12 at 20:09
We would need a lot more data about your testing setup to really help. Can you run a packet sniffer on the server to see if your packets are reaching your target? – schroeder Aug 2 '12 at 20:16
OK I see sp2 havent read it - with this you can maybe crash firewall? Do you know what hardware does it run? – Andrew Smith Aug 2 '12 at 20:53
i ma sure that packets are reaching firewall, because when metasploit tries to create the reverse connection, i receive a message says : connection refused by host – user1028 Aug 2 '12 at 21:10
i do not know what u exactly mean by version of networking, i am working on a LAN, and there is one 3layer switch between my machine and target machine, – user1028 Aug 2 '12 at 21:15
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closed as not constructive by schroeder, Hendrik Brummermann♦ Aug 10 '12 at 5:41

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1 Answer

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The 'best' way to bypass a firewall is client-side. Get a payload to a user on the target, which connects back out. Emails and browsers are the most common.

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in fact my target is a server used as a proxy. there are no users to surf net or opening emails on this machine – user1028 Aug 2 '12 at 20:58

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