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I get the below error for dns requests and response.

I also see UDP Bad lenght greater that IP Payload.

Any suggestion or advice ffrom anyone as to cause of this error?

asked 13 Nov '15, 02:26

olutola's gravatar image

accept rate: 0%

edited 13 Nov '15, 02:57

Jaap's gravatar image

Jaap ♦

Can you share the capture file? From an image it's impossible to tell. You could use cloudshark for that.

(13 Nov '15, 02:59) Jaap ♦

While it's true what @Jaap says regarding the screenshot, I'll to make an assumption. The size of the frames and the uniform length pattern (44, 80, 84) does not match a typical DNS query/answer. So I guess that's traffic where Wireshark only believes it could be DNS, based on the protocol and port (TCP/UDP 53), but in reality it's something totally different, hence the "Malformed Packet".

As the IP is on the internet (Nigeria), this looks a bit "strange". Could be DNS tunneling software, malware or simply a bug somewhere.

We will see, as soon as you provide the capture file.


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answered 13 Nov '15, 14:10

Kurt%20Knochner's gravatar image

Kurt Knochner ♦
accept rate: 15%

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question asked: 13 Nov '15, 02:26

question was seen: 12,466 times

last updated: 13 Nov '15, 14:10

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