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 <[email protected]>
> 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 <[email protected]>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 >> >> _______________________________________________ >> Full-Disclosure - We believe in it. >> Charter: http://lists.grok.org.uk/full-disclosure-charter.html >> Hosted and sponsored by Secunia - http://secunia.com/ >> > >
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