I found a weird IP address on my network that had transmitted an insanely small amount of data. I put the address in my browser and got this. what the heck am I looking at?

Comments

• 9point6@lemmy.world ⁨1⁩ ⁨month⁩ ago

  As everyone else has said this is the out of the box default page that comes with Microsoft IIS web server on windows server.

  Though I feel like you’d know if you had a copy of windows server running on your network somewhere—is the IP in your usual network subnet?

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    The only windows box on my network is my company laptop. It is on a different IP address than that one.

    It IS in my normal range, but it is NOT listed on my Router’s DHCP client list.

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    • 9point6@lemmy.world ⁨1⁩ ⁨month⁩ ago

      Have you recently installed visual studio or are doing any .NET development? It could possibly be a containerised version of IIS

      If you completely turn off your windows device and try to access the IP from another device does it still resolve?

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    • polygon6121@lemmy.world ⁨1⁩ ⁨month⁩ ago

      That is weird. Running development environments maybe? Docker with windows iis?

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    • oracleunity@lemmy.world ⁨1⁩ ⁨month⁩ ago

      Yeah, that’s a company server, specifically for the local network group

      It IS in my normal range, but it is NOT listed on my Router’s DHCP client list.

      Why would an internal server change IP all the time? DHCP is for silly things like laptops that turn on and off eleventy times a day

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    • mvirts@lemmy.world ⁨1⁩ ⁨month⁩ ago

      Any device can decide to set it’s own IP so that’s not too far fetched. Have any IoT crap like a water softener or colorful lights or speakers or cameras?

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  • thesystemisdown@lemmy.world ⁨1⁩ ⁨month⁩ ago

    You can enable IIS on almost any windows flavor.

    helpdeskgeek.com/…/install-and-setup-a-website-in…

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    • Mjpasta710@midwest.social ⁨1⁩ ⁨month⁩ ago

      Fair point.

      As a note, I don’t recall all of them saying ‘Windows Server’ in the top left of that page.

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  • circuscritic@lemmy.ca ⁨1⁩ ⁨month⁩ ago

    I think you can enable IIS, or at least a version of, under Windows Features for Windows 10 Pro/Edu installs.

    But someone can correct me if I’m wrong about that.

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• r00ty@kbin.life ⁨1⁩ ⁨month⁩ ago

  So, as others have saId this is just an unconfigured IIS server, which implies it's either a windows machine, or a windows based VM, well or someone put the default IIS files on another server, but that's unlikely.

  When you say "weird" IP I'd wonder what you mean by that.

  I think since it's probably a windows machine, from another windows machine typing nbtstat -A <ip> should give you the computer name and workgroup or domain they belong to. See if it matches anything you expect on your network.

  If not, maybe it's time to change your WPA wifi key.

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  • Bytemeister@lemmy.world ⁨1⁩ ⁨month⁩ ago

    At least get WPA2

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    • r00ty@kbin.life ⁨1⁩ ⁨month⁩ ago

      I don't even think my current wifi kit has WPA (1) as an option. It's WPA2 or 3 only I'm pretty sure.

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    Thanks. I ran nbtstat and it came up empty.

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    • r00ty@kbin.life ⁨1⁩ ⁨month⁩ ago

      Hmm. That would mean it's likely one of the following (well perhaps more options, but these spring to mind)

      • A windows machine that has the network set as a public network, or netbios specifically blocked on LAN.
      • A windows machine that has all the netbios services disabled.
      • Not a windows machine, or a container as others suggested that's running some kind of IIS install
      • Not a windows machine at all but for some weird reason IIS files and a web server setup.

      I think you suggested in another comment, that it's not in your DHCP client list but has an IP in your normal range. Which suggests it is setup with a static IP. That is odd.

      Some other people suggested it could be a container that is using a real IP rather than the NAT that docker etc usually use. I do know that you can use real IPs in containers, I've done it on my NAS to get a "proper" linux install on top of the NAS lite linux that is provided. But I would have expected that you'd know about that, since it would require someone to actually choose the IP address to use.

      If you have managed switches you could find which port on which switch the MAC address (as found by lookuping up the arp record for the IP using arp -a) is on (provided the switch allows access to the forwarding tables). Of course, if they're on Wi-Fi it's only going to lead to the access point they're connecting to.

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  • caseyweederman@lemmy.ca ⁨1⁩ ⁨month⁩ ago

    It could be a configured one with the default greet page still up.

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• rtxn@lemmy.world ⁨1⁩ ⁨month⁩ ago

  The default home page for Microsoft IIS, the web server built into Windows Server (and probably some desktop builds too).

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• Seasm0ke@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Following, I want to know what god awful iot device this is. Refrigerator? Toaster oven? Vibrating dildo? The suspense is killing me

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  • spearz@lemmy.world ⁨1⁩ ⁨month⁩ ago

    Nobody wants windows on a vibrating dildo

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    • Seasm0ke@lemmy.world ⁨1⁩ ⁨month⁩ ago

      I mean, Windows already fucks us metaphorically

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    • WrenHavoc@lemmy.dbzer0.com ⁨1⁩ ⁨month⁩ ago

      Maybe I want my vibrating dildo to take an hour to load and come with spyware

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• Agent641@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Bro, you gotta keep us updated, I’m surprisingly invested in this now.

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    I lost my entire morning to this yesterday. I had to work late to catch up. There are some good ideas in here I’m starting on now.

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• dingdongmetacarples@lemmy.world ⁨1⁩ ⁨month⁩ ago

  If you can, power stuff off and check if that web page is still available. Start with any Windows machines. It could be a virtual machine running inside of something else though.

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    I shut off my only windows machine and it is still there.

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    • dingdongmetacarples@lemmy.world ⁨1⁩ ⁨month⁩ ago

      I’d go around unplugging anything that might be connected to the network, like game consoles, smart TV, etc. It’s unlikely, but maybe something has copied that same screen to throw you off.

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• thisbenzingring@lemmy.sdf.org ⁨1⁩ ⁨month⁩ ago

  does your router give you the MAC address of the device? You can look it up to see who manufactured it and then narrow down. This could be a device that has a web service running is all you are seeing right now.

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  • r00ty@kbin.life ⁨1⁩ ⁨month⁩ ago

    Don't need the router. If you're on windows or linux, you just ping the ip then enter 'arp -a <ip>' it will show the MAC address for the IP from your machine's arp cache.

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    It does not show up on the DHCP table, nor does it reflect pings.

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    • thisbenzingring@lemmy.sdf.org ⁨1⁩ ⁨month⁩ ago

      You can always start looking at how to use WireShark to sniff the packets and learn more about what is coming and going from that system. WireShark can be a daunting tool but if you look at some videos or walk through you should be able to get a handle on how to make it reveal only the one devices network traffic

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• carpelbridgesyndrome@sh.itjust.works ⁨1⁩ ⁨month⁩ ago

  Windows IIS probably from around the time of windows 8 so maybe 2012. Probably running on either windows server 2012 (like exchange, an active directory domain controller, or if you are unlucky sharepoint) or some weirdly configured appliance running windows 8 ish enterprise.

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    Thanks. This helps. My work computer is way newer than that. It makes me think it could be networking hardware. I have some kit that’s about that old.

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• Kelly@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Home network or corporate?

  Its a windows server, if you are using widows too you can try establishing a RDP connection with Remote Desktop Connection.

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  • lurch@sh.itjust.works ⁨1⁩ ⁨month⁩ ago

    Yeah and giving a potential attacker your account details while trying to log on?

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    • Kelly@lemmy.world ⁨1⁩ ⁨month⁩ ago

      Eyeballing the login screen may give some insight, you’re right that its probably unwise to try real creds if you don’t recognize the server.

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    It is a home network. Configured by someone who understands the basics, but is mostly following recipeies rather than having deep knowledge.

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• fmstrat@lemmy.nowsci.com ⁨1⁩ ⁨month⁩ ago

  Others haven’t suggested this yet, but a single device, like your laptop, even with one connection, can have two IPs.

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    Thanks. It is neither the Ethernet nor the Wi-Fi on my windows laptop.,

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    • caseyweederman@lemmy.ca ⁨1⁩ ⁨month⁩ ago

      Don’t just turn your devices off when testing - - unplug them. An off computer can still respond to network requests.

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• Blackmist@feddit.uk ⁨1⁩ ⁨month⁩ ago

  This is where you find that shit is so bloated and pointlessly connected that it’s running on a washing machine.

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• fubarx@lemmy.ml ⁨1⁩ ⁨month⁩ ago

  There was an appliance where the wifi chip was at the end of the power cable, embedded inside the plug. From the outside, you couldn’t really tell. It was there so radiation inside the box couldn’t affect the wireless signal as much.

  I can imagine some genius thinking it’s a good idea to run a server from inside a cable or a connected home appliance.

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    Sounds like purchasing got a deal on surplus spook gear.

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• SlothMama@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Get the MAC address from the ARP table, and look up the OIN, should help you determine if it’s virtual or physical, and if physical the type of NIC it’s using.

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    That gave nothing useful

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    • SlothMama@lemmy.world ⁨1⁩ ⁨month⁩ ago

      Sorry, I meant the OUI ( was going by memory ) . It’s the part that you can look up that tells your what kind of device the MAC address belongs to.

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    • MarjorineFailureGroan@lemmy.world ⁨1⁩ ⁨month⁩ ago

      The first few octets of the Mac address are unique to a manufacturer. This may at least help narrow which device it is. You can look it up at macaddress.io

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• peopleproblems@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Depending on your router, it could have a docker setup with Windows on it. I’ve seen some strange shit on cheap routers with far too much processing power and storage.

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    I will probably have to shut all the devices off and put them back one by one. OMG that will take a long time.

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• TunaCowboy@lemmy.world ⁨1⁩ ⁨month⁩ ago

  nmap -A -T4 -p- <IP>

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    This is interesting. I had to modify it to nmap -A -T4 -p- -Pn <IP>.

    It said the host is up with 0.077 seconds of latency. All 64k ports were scanned with 7 filtered tcp ports (host-unreachable) and the rest (no-response).

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    • deltapi@lemmy.world ⁨1⁩ ⁨month⁩ ago

      What’s weird about this is that it should be getting a response from IIS like you showed us in the screenshot.

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    • mrbaby@lemmy.world ⁨1⁩ ⁨month⁩ ago

      77ms of latency is pretty slow. Based off that I’d assume (but not rule out) that it’s not: on the machine you used to run nmap, not on ethernet, probably wifi with a shitty connection

      So, some really dumb, likely irrelevant, questions that might spark an idea:

      • Do you see anything weird connected in the wifi client list?

      • Are you running a VPN server or using VPN to bridge any networks?

      • You said you’re running dual WAN, are those configured properly and not leaking random internet shit into your LAN?

      • Do you have anything that might be running some kind of out-of-band management system like DRAC on a dell server?

      • What’s your IoT situation?

      • Do you have an on-site NVR for security cams?

      • Did you find the mac? If so what are the first 3 octets? Even if the vendor can’t be found, there’s always the chance some crazy ubernerd is going to recognize it. (If it’s 00:d0:2c or 44:d9:e7 I got ya covered)

      Again, most of those are probably irrelevant, but throwing the thoughts out there :)

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    • TunaCowboy@lemmy.world ⁨1⁩ ⁨month⁩ ago

      You should try running the original command with elevated privileges, sudo nmap … on linux.

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• Chocrates@lemmy.world ⁨1⁩ ⁨month⁩ ago

  That is IIS, all it means is you are probably talking to a windows server. Is the traffic encrypted? What port is it going to?

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  • elvith@feddit.org ⁨1⁩ ⁨month⁩ ago

    Is the traffic encrypted?

    If it is, look at the certificate. Which hostname is it for primarily? Which SAN (Subject Alternative Name - basically a list of all other hostnames the certificate is valid for) are set, if any? Which Certificate Authority issued the certificate or is it self signed?

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    It shows NOT SECURE in the browser window

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• Flax_vert@feddit.uk ⁨1⁩ ⁨month⁩ ago

  It’s me. I’m your nextdoor neighbour. Sorry!

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• Crashumbc@lemmy.world ⁨1⁩ ⁨month⁩ ago

  You don’t have Ethernet over power do you?

  Fun story, I live in a townhome, I had so bizarre network issues going on. Not able to stream to TV etc. finally started unplugging shit. Unplugged the router and saw the computer still happily downloading something WTF! Turns out a neighbor also has Ethernet over power and devices were randomly connecting to their network. Crazy ass shit.

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  • iguanajuice@lemmy.world ⁨1⁩ ⁨month⁩ ago

    I’m confused. Are you talking about power over ethernet or power-line ethernet?

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    • JordanZ@lemmy.world ⁨1⁩ ⁨month⁩ ago

      [deleted]

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• cristo@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Windows 8 is starting to break out

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  • RestrictedAccount@lemmy.world ⁨1⁩ ⁨month⁩ ago

    lol!

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• artvabas@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Is your IP adres same as localhost and you are using Windows Pro, then probably IIS is installed on your device.

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• mvirts@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Maybe set up Kismet www.kismetwireless.net

  That’ll show devices attempting to break in worelessly

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• OfficerBribe@lemm.ee ⁨1⁩ ⁨month⁩ ago

  Besides the MAC lookup suggestion, have you tried to simply find hostname in local DNS by reverse IP lookup, maybe that would shed some light.

  Not sure if there is anything useful, but in browser just check site source, maybe there is something useful there that could help with identification.

  In nmap you can attempt to guess OS, try that. Additionally it might be possible to get hostname as well.

  And have you checked your router to see if this connection is connected to your Wi-Fi AP or Ethernet to narrow things down? If it is not possible to determine this from router, simply connect your main PC to Ethernet, disable AP in router settings and check if IIS site is still up. If it is not, enable AP again, does it come back early or it takes some time?

  Lastly, if it still is a mystery, start powering off devices one by one to find the source. Based on comments it seems you have multiple devices, but I assume it would not take that long?

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• mvirts@lemmy.world ⁨1⁩ ⁨month⁩ ago

  … So when you port scanned it, IIS was gone?

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• f4f4f4f4f4f4f4f4@sopuli.xyz ⁨1⁩ ⁨month⁩ ago

  nmap’s seeing the 1-9999 as the next argument (expecting an IP address). In -Pn, the n is a placeholder for the port numbers you want to scan, so you want -P1-9999

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• mvirts@lemmy.world ⁨1⁩ ⁨month⁩ ago

  Maybe try traceroutre or lft (layer 4 traceroutre) to see if something wacky is happening with routing in your lan?

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• mvirts@lemmy.world ⁨1⁩ ⁨month⁩ ago

  You’re looking at my worst nightmare 😅

  I would download metasploit and dig up some interesting exploits to try against it.

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