Browse Definitions :
Definition

botnet sinkhole

Contributor(s): Matthew Haughn

A botnet sinkhole is a target machine used by researchers to gather information about a particular botnet.

Sinkholing is the redirection of traffic from its original destination to one specified by the sinkhole owners. The altered destination is known as the sinkhole. (The name is a reference to a physical sinkhole, into which items apparently disappear.) 

Sinkholes can be used for good or ill intent. Most commonly, sinkholes are used to redirect zombies in a botnet to specified research machines to capture data about them.

In a centralized botnet, sinkholing is straightforward. The discovery of a C&C (command and control) server makes it possible to redirect DNS requests for that server to a law enforcement computer or other analyzing machine. The specially configured DNS server can simply route the requests of the bots to a faked C&C server, where the requests provide information to researchers about the nature of the botnet. To establish this type of botnet sinkhole, researchers need the cooperation of the owner of the DNS used by the botnet, as well as knowledge of the botnet and its C&C server.

Since there is no C&C server in a decentralized or P2P botnet (peer-to-peer botnet), the researcher has to detect its method of picking up owner commands before any attempt can be made to block or analyze the botnet's communication.

Other methods used to effectively sinkhole botnet DDoS (distributed denial of service) traffic include locally rerouting traffic through changes via Windows updates or to a hosts file.

This was last updated in June 2014

Continue Reading About botnet sinkhole

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • privacy compliance

    Privacy compliance is a company's accordance with established personal information protection guidelines, specifications or ...

  • data governance policy

    A data governance policy is a documented set of guidelines for ensuring that an organization's data and information assets are ...

  • risk management

    Risk management is the process of identifying, assessing and controlling threats to an organization's capital and earnings.

SearchSecurity

  • Advanced Encryption Standard (AES)

    The Advanced Encryption Standard, or AES, is a symmetric block cipher chosen by the U.S. government to protect classified ...

  • intrusion detection system (IDS)

    An intrusion detection system (IDS) is a system that monitors network traffic for suspicious activity and alerts when such ...

  • Secure Shell (SSH)

    SSH, also known as Secure Shell or Secure Socket Shell, is a network protocol that gives users, particularly system ...

SearchHealthIT

SearchDisasterRecovery

SearchStorage

  • M.2 SSD

    An M.2 SSD is a solid-state drive (SSD) that conforms to a computer industry specification written for internally mounted storage...

  • RAID (redundant array of independent disks)

    RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks or ...

  • cache memory

    Cache memory, also called CPU memory, is high-speed static random access memory (SRAM) that a computer microprocessor can access ...

Close