Mitigating malicious network traffic

1. A computer-implemented method for mitigating malicious network traffic, comprising:

determining, by a computing device, a respective source address for each data packet of a plurality of data packets;

blocking, based on the respective source address for each data packet of a first portion of the plurality of data packets indicating a prohibited source address, the first portion of the plurality of data packets;

blocking, based on a source address indicated by each data packet of a second portion of the plurality of data packets and a communication request threshold, the second portion of the plurality of data packets;

blocking, based on a respective destination address of each data packet of a third portion of the plurality of data packets and an access control list, the third portion of the plurality of data packets;

blocking, based on a respective size of each data packet of a fourth portion of the plurality of data packets and a packet size threshold, the fourth portion of the plurality of data;

blocking, based on respective content of each data packet of a fifth portion of the plurality of data packets indicating a restricted content type, the fifth portion of the plurality of data packets;

causing, based on a destination address of other data packets of the plurality of data packets, the other data packets to be sent to a user device; and

causing, based on traffic profile information and a parameter indicated by a header of a data packet of the other data packets, the user device to block the data packet.

2. The computer-implemented method of claim 1 , wherein the determining the respective source address for each data packet of the plurality of data packets comprises receiving an indication of the respective source address for each data packet of the plurality of data packets from a network routing device.

3. The computer-implemented method of claim 1 , wherein blocking the first portion of the plurality of data packets comprises sending a control message to a network routing device that received the plurality of data packets that causes the network routing device to block the first portion of the plurality of data packets.

4. The computer-implemented method of claim 1 , wherein blocking the second portion of the plurality of data packets comprises sending data rate limiting instructions to a network device that cause the network device to block received data packets that indicate the source address after the communication request threshold is satisfied.

5. The computer-implemented method of claim 1 , wherein blocking the third portion of the plurality of data packets comprises sending the access control list to a network device configured to block received data packets that comprise a destination address that is not indicated by the access control list.

6. The computer-implemented method of claim 1 , wherein blocking the fourth portion of the plurality of data packets comprises sending, to a network device, instructions to:

remove a token from an amount of tokens in a bucket for each data packet received that exceeds the packet size threshold; and

block, based on the amount of tokens remaining in the bucket being less than a token count threshold, the fourth portion of the plurality of data packets.

7. The computer-implemented method of claim 1 , wherein blocking the fifth portion of the plurality of data packets comprises sending, to a network device, an indication of the restricted content type, wherein the network device configured to:

determine, based on a respective header for each data packet of the fifth portion of the plurality of data packets, the respective content; and

block, based on the respective content of each data packet of the fifth portion of the plurality of data packets indicating a restricted content type, the fifth portion of the plurality of data packets.

8. The computer-implemented method of claim 1 , wherein the causing the user device to block the data packet comprises sending the traffic profile information to the user device, wherein the traffic profile information indicates at least one of a prohibited protocol or a prohibited port number, and the user device is configured to:

determine, based on the header on the data packet, the parameter; and

block, based on the parameter indicating the prohibited protocol or the prohibited port number, the data packet.

9. A non-transitory computer-readable medium having instructions stored thereon that, when executed by at least one computing device, causes at least one computing device to perform operations for mitigating malicious network traffic, comprising:

determining a respective source address for each data packet of a plurality of data packets;

blocking, based on the respective source address for each data packet of a first portion of the plurality of data packets indicating a prohibited source address, the first portion of the plurality of data packets;

blocking, based on a source address indicated by each data packet of a second portion of the plurality of data packets and a communication request threshold, the second portion of the plurality of data packets;

blocking, based on a respective destination address of each data packet of a third portion of the plurality of data packets and an access control list, the third portion of the plurality of data packets;

blocking, based on a respective size of each data packet of a fourth portion of the plurality of data packets and a packet size threshold, the fourth portion of the plurality of data packets;

blocking, based on respective content of each data packet of a fifth portion of the plurality of data packets indicating a restricted content type, the fifth portion of the plurality of data packets;

causing, based on a destination address of other data packets of the plurality of data packets, the other data packets to be sent to a user device; and

causing, based on traffic profile information and a parameter indicated by a header of a data packet of the other data packets, the user device to block the data packet.

10. The non-transitory computer-readable medium of claim 9 , wherein the determining the respective source address for each data packet of the plurality of data packets comprises receiving an indication of the respective source address for each data packet of the plurality of data packets from a network routing device.

11. The non-transitory computer-readable medium of claim 9 , wherein blocking the first portion of the plurality of data packets comprises sending a control message to a network routing device that received the plurality of data packets that causes the network routing device to block the first portion of the plurality of data packets.

12. The non-transitory computer-readable medium of claim 9 , wherein blocking the second portion of the plurality of data packets comprises sending data rate limiting instructions to a network device that cause the network device to block received data packets that indicate the source address after the communication request threshold is satisfied.

13. The non-transitory computer-readable medium of claim 9 , wherein blocking the third portion of the plurality of data packets comprises sending the access control list to a network device configured to block received data packets that comprise a destination address that is not indicated by the access control list.

14. The non-transitory computer-readable medium of claim 9 , wherein blocking the fourth portion of the plurality of data packets comprises sending, to a network device, instructions to:

remove a token from an amount of tokens in a bucket for each data packet received that exceeds the packet size threshold; and

block, based on the amount of tokens remaining in the bucket being less than a token count threshold, the fourth portion of the plurality of data packets.

15. The non-transitory computer-readable medium of claim 9 , wherein blocking the fifth portion of the plurality of data packets comprises sending, to a network device, an indication of the restricted content type, wherein the network device configured to:

determine, based on a respective header for each data packet of the fifth portion of the plurality of data packets, the respective content; and

block, based on the respective content of each data packet of the fifth portion of the plurality of data packets indicating a restricted content type, the fifth portion of the plurality of data packets.

16. The non-transitory computer-readable medium of claim 9 , wherein the causing the user device to block the data packet comprises sending the traffic profile information to the user device, wherein the traffic profile information indicates at least one of a prohibited protocol or a prohibited port number, and the user device is configured to:

determine, based on the header on the data packet, the parameter; and

block, based on the parameter indicating the prohibited protocol or the prohibited port number, the data packet.

17. A system for mitigating malicious network traffic, comprising:

a memory; and

at least one processor coupled to the memory and configured to perform operations comprising:

determining a respective source address for each data packet of a plurality of data packets;

blocking, based on the respective source address for each data packet of a first portion of the plurality of data packets indicating a prohibited source address, the first portion of the plurality of data packets;

blocking, based on a source address indicated by each data packet of a second portion of the plurality of data packets and a communication request threshold, the second portion of the plurality of data packets;

blocking, based on a respective destination address of each data packet of a third portion of the plurality of data packets and an access control list, the third portion of the plurality of data packets;

blocking, based on a respective size of each data packet of a fourth portion of the plurality of data packets and a packet size threshold, the fourth portion of the plurality of data packets;

blocking, based on respective content of each data packet of a fifth portion of the plurality of data packets indicating a restricted content type, the fifth portion of the plurality of data packets;

causing, based on a destination address of other data packets of the plurality of data packets, the other data packets to be sent to a user device; and

causing, based on traffic profile information and a parameter indicated by a header of a data packet of the other data packets, the user device to block the data packet.

18. The system of claim 17 ,

wherein determining the respective source address for each data packet of the plurality of data packets comprises receiving an indication of the respective source address for each data packet of the plurality of data packets from a network routing device, and

wherein blocking the first portion of the plurality of data packets comprises sending a control message to a network routing device that received the plurality of data packets that causes the network routing device to block the first portion of the plurality of data packets.

19. The system of claim 17 ,

wherein blocking the second portion of the plurality of data packets comprises sending data rate limiting instructions to a network device that cause the network device to block received data packets that indicate the source address after the communication request threshold is satisfied, and

wherein blocking the third portion of the plurality of data packets comprises sending the access control list to a network device configured to block received data packets that comprise a destination address that is not indicated by the access control list.

20. The system of claim 17 , wherein blocking the fourth portion of the plurality of data packets comprises sending, to a network device, instructions to:

remove a token from an amount of tokens in a bucket for each data packet received that exceed a packet size threshold; and

block, based on the amount of tokens remaining in the bucket being less than a token count threshold, the fourth portion of the plurality of data packets.