Re: [Full-disclosure] Weird traffic

[James Matthews <nytrokiss@xxxxxxxxx>]

If you have a large paste can you please put it in a pastebin.

On Wed, Feb 25, 2009 at 7:50 PM, julio sanchez <pete.sanches@xxxxxxxxx>wrote:

> No IDS alert yet.
> What alerted us was the constant ARP loop scan on various vista sp1 box
> while we was monitoring the network
> I'll send a pcap in one hour or twoThanks
> 2009/2/25 B Null <bnull@xxxxxxxxxxxxxxxxxx>
>
>> Can you provide a pcap with the suspect traffic isolated?  Also, what
>> alerted you to the odd behavior?  Did the traffic flag an IDS alert?
>>
>> bNull
>>
>> On Wed, Feb 25, 2009 at 9:27 AM, julio sanchez <pete.sanches@xxxxxxxxx>wrote:
>>
>>> Hi,
>>>
>>> We're experiencing some weird arp traffic on our network, some box scan
>>> constantly the subnets with loop "who-has" request
>>> All the box are all windows vista sp1 fully patched.
>>> We did format all the  supect box, and isolate them on a vlan, to
>>> reinstall vista, updates, kaspersky, then we put it back on the network, and
>>> still some ramdom freshly formated box scanning the network.
>>> We find out that Vista will do an arp scan when it search for a network
>>> printer, but it does this once.
>>> The problem we have is an almost permanent arp scan on various boxs.
>>> We know that some worm was hitting some network around the world with the
>>> smb vulnerability, but all of our boxs are fully updated.
>>> Have you experienced something like this before, or it seems to be legit
>>> traffic ?
>>> Can this be a worm or something related ?
>>>
>>> Thanks in advance
>>>
>>> Pete
>>>
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>>
>>
>
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