NDLI: Covert Botnet Command and Control Using Twitter

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Covert Botnet Command and Control Using Twitter

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Covert Botnet Command and Control Using Twitter

Content Provider	ACM Digital Library
Author	Pantic, Nick Husain, Mohammad I.
Abstract	Botnets are one of the primary threats in computer security today. They are used for launching denial of service attacks, sending spam and phishing emails, and collecting private information. However, every botnet requires coordination. In order to initiate an attack, a botmaster must communicate to all of the bots in the network. In this paper, we present a steganographic system that demonstrates the feasibility of the social networking website Twitter as a botnet command and control center that an attacker could use to reliably communicate messages to a botnet with low latency and nearly perfect rate of transmission. Our system generates plausible cover messages based on a required tweet length determined by an encoding map that has been constructed based on the structure of the secret messages. The system considers both the input symbol frequencies (e.g. English letter frequencies) as well as the tweet length posting frequencies for constructing the encoding maps. A technique for automatically generating Twitter account names based on Markov chains is also presented so that the bots can connect to new accounts if the existing botmaster account is unavailable. All the experiments were performed using the 7.3M actual tweets from 3.7K verified accounts collected by the tweet parser developed by us. We have evaluated the efficacy of the system using Emulab and usability of the system through Amazon's Mechanical Turk with promising results. An analysis of the steganographic security of the proposed system has also been provided. By demonstrating how a botmaster might perform such communication using online social networks, our work provides the basis to detect and prevent emerging botnet activities.
Starting Page	171
Ending Page	180
Page Count	10
File Format	PDF
ISBN	9781450336826
DOI	10.1145/2818000.2818047
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2015-12-07
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Steganography Botnet Command and control Social network Twitter Denial of service
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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