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+--- Thread: Tutorial What Is DDoS? (/Thread-Tutorial-What-Is-DDoS)
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What Is DDoS? - BreShiE - 01-30-2014
DDoS attacks are becoming more and more frequent in today's world, with any average person being able to download or purchase such tools from online, public forums. You may have heard about the self proclaimed hacktivist group Anonymous and their infamous take-downs of websites such as MasterCard, PayPal and The Bank of America. Well, these websites were taken offline for a period of time by an attack known as "DDoS", but what is DDoS?
DDoS stands for Distributed Denial of Service. DDoS attacks work by collecting multiple infected machines or servers with certain scripts, or malware, intended to send data from the infected server or home connection to a victims IP Address. This means, the attacker can overload the victim connection, by flooding it with loads and loads of dummy data, eventually causing the victim connection to overload, "knocking" the connection offline and making it unresponsive. See the below diagram for an example of this:
DDoS stands for Distributed Denial of Service. DDoS attacks work by collecting multiple infected machines or servers with certain scripts, or malware, intended to send data from the infected server or home connection to a victims IP Address. This means, the attacker can overload the victim connection, by flooding it with loads and loads of dummy data, eventually causing the victim connection to overload, "knocking" the connection offline and making it unresponsive. See the below diagram for an example of this:
![[Image: 9a27Dyc.png]](http://i.imgur.com/9a27Dyc.png)
As you can see from the above diagram, the attacker sends a command to servers/connection that are under his/her control, which then send the dummy data to the victim connection and overloads the connection, making it unreachable by the victim. There's also what is known as "DoS" which is often not as strong as a DDoS attack, but if the attacker is using a server with a strong connection, this attack can still be devastating. One thing to note would be that there are companies which fight to prevent this exact attack and that is why you never see big sites like eBay, YouTube and Google go down. With this huge scare about "hackers being able to take down the internet", it's baloney. The only way it would be possible, is if the data-centers were to be physically blown up, not DDoS attacks via the internet. If you wish to know more on this subject, visit this Wikipedia page:
http://en.wikipedia.org/wiki/Distributed_denial_of_service#Distributed_attack
RE: What Is DDoS? - Satan - 01-30-2014
I thought this was a legitimate question and I was like "What."
Is it the modem that an attacker targets? I've always been attacked by machine basis rather than my entire network.
This also focuses on just the target being a single user rather than a website or online server.
Nevertheless, its a decent introductory to anyone who may not know about it.
RE: What Is DDoS? - BreShiE - 01-30-2014
(01-30-2014, 04:15 AM)Satan Wrote: I thought this was a legitimate question and I was like "What."
Is it the modem that an attacker targets? I've always been attacked by machine basis rather than my entire network.
This also focuses on just the target being a single user rather than a website or online server.
Nevertheless, its a decent introductory to anyone who may not know about it.
Well, your PC IP isn't unique and therefore can not be the only thing that gets attacked. Your IP address is set to your household and that is what a person attacks, which in turn floods your modem as this is what intercepts all incoming and outgoing connections.
It's the exact same thing for web servers too.
RE: What Is DDoS? - Satan - 01-30-2014
(01-30-2014, 04:18 AM)BreShiE Wrote: Well, your PC IP isn't unique and therefore can not be the only thing that gets attacked. Your IP address is set to your household and that is what a person attacks, which in turn floods your modem as this is what intercepts all incoming and outgoing connections.
It's the exact same thing for web servers too.
Is there a thing for IPv6 DDoS then? Cos they attacked specifically my computer with traffic rather than everything, cos my other computers and my Xbox were still able to connect and use the internet regularly.
I don't use this, so excuse my ignorance of the exact depth of what it can and cannot do.
RE: What Is DDoS? - BreShiE - 01-30-2014
(01-30-2014, 04:25 AM)Satan Wrote: Is there a thing for IPv6 DDoS then? Cos they attacked specifically my computer with traffic rather than everything, cos my other computers and my Xbox were still able to connect and use the internet regularly.
I don't use this, so excuse my ignorance of the exact depth of what it can and cannot do.
I'm not fully aware of any attacks against IPv6 IP Addresses currently. You'll have to Google around for that one. Erm, I guess the only way it could have happened is if they were in your modem (which can only be done internally from my knowledge) and set your device to not have access.
Were you playing a game or anything at the time? Browsing the web fine on your other devices? This is a new one to me, from my own experience I know you cannot specifically DDoS a single computer.
RE: What Is DDoS? - Satan - 01-30-2014
(01-30-2014, 04:34 AM)BreShiE Wrote: I'm not fully aware of any attacks against IPv6 IP Addresses currently. You'll have to Google around for that one. Erm, I guess the only way it could have happened is if they were in your modem (which can only be done internally from my knowledge) and set your device to not have access.
Were you playing a game or anything at the time? Browsing the web fine on your other devices? This is a new one to me, from my own experience I know you cannot specifically DDoS a single computer.
Using an online chat on the attacked computer.
Other computers being used by other people, no issues.
Was playing a Xbox game while on the chat online, game didn't boot or give me a disconnect notice (Minecraft: Xbox 360 Edition)
RE: What Is DDoS? - BreShiE - 01-30-2014
(01-30-2014, 04:43 AM)Satan Wrote: Using an online chat on the attacked computer.
Other computers being used by other people, no issues.
Was playing a Xbox game while on the chat online, game didn't boot or give me a disconnect notice (Minecraft: Xbox 360 Edition)
An online chat? What kind of online chat. If it's a service such as teamspeak then it is possible someone took down the TeamSpeak server. Also, were you the host of that Minecraft game or in someone elses session?
RE: What Is DDoS? - Eclipse - 01-30-2014
You should include the different types of attacks like teardrop, udp etc., but nice guide!
RE: What Is DDoS? - BreShiE - 01-30-2014
(01-30-2014, 03:09 PM)Sparks Wrote: You should include the different types of attacks like teardrop, udp etc., but nice guide!
Hell yeah! I might do that actually when I've got time.
RE: What Is DDoS? - Alan Turing - 01-30-2014
Ipv6 attacks don't exist, unless you count unicast floods, when a unicast packet accidentally gets sent like a broadcast packet, so everyone on the network receives it as oppose to one source, but that's when theres a problem with the switch, and it's LAN only, not WAN, so it doesn't matter to anyone.
As or Ipv6 flooding, no, because how are you suppose to even get it? An IP Logger wouldn't give you that type of information. Sora like how you cant get someones internal IP(192.xxx.xxx) because it's a shared(I know it's preserved via RFC but I mean, a lot of people in the world have 192.168.0.1 or 192.168.1.1 so flooding people over WAN with that isn't an option)
And Satan, it seems more like just a problem with your computer, because I dont see how they got your IpV6 Address, and if they hit your IP, then everything connected to the router would be offline.