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Click Trajectories: End-To-End Analysis of the Spam Value Chain
Click Trajectories: End-to-End Analysis of the Spam Value Chain ∗ ∗ ∗ ∗ z y Kirill Levchenko Andreas Pitsillidis Neha Chachra Brandon Enright Mark´ Felegyh´ azi´ Chris Grier ∗ ∗ † ∗ ∗ Tristan Halvorson Chris Kanich Christian Kreibich He Liu Damon McCoy † † ∗ ∗ Nicholas Weaver Vern Paxson Geoffrey M. Voelker Stefan Savage ∗ y Department of Computer Science and Engineering Computer Science Division University of California, San Diego University of California, Berkeley z International Computer Science Institute Laboratory of Cryptography and System Security (CrySyS) Berkeley, CA Budapest University of Technology and Economics Abstract—Spam-based advertising is a business. While it it is these very relationships that capture the structural has engendered both widespread antipathy and a multi-billion dependencies—and hence the potential weaknesses—within dollar anti-spam industry, it continues to exist because it fuels a the spam ecosystem’s business processes. Indeed, each profitable enterprise. We lack, however, a solid understanding of this enterprise’s full structure, and thus most anti-spam distinct path through this chain—registrar, name server, interventions focus on only one facet of the overall spam value hosting, affiliate program, payment processing, fulfillment— chain (e.g., spam filtering, URL blacklisting, site takedown). directly reflects an “entrepreneurial activity” by which the In this paper we present a holistic analysis that quantifies perpetrators muster capital investments and business rela- the full set of resources employed to monetize spam email— tionships to create value. Today we lack insight into even including naming, hosting, payment and fulfillment—using extensive measurements of three months of diverse spam data, the most basic characteristics of this activity. How many broad crawling of naming and hosting infrastructures, and organizations are complicit in the spam ecosystem? Which over 100 purchases from spam-advertised sites. -
Modeling and Evaluating the Resilience of Peer-To-Peer Botnets
P2PWNED: Modeling and Evaluating the Resilience of Peer-to-Peer Botnets Christian Rossow∗‡, Dennis Andriesse‡, Tillmann Werner¶, Brett Stone-Gross†, Daniel Plohmann§, Christian J. Dietrich∗, Herbert Bos‡ ∗ Institute for Internet Security, Gelsenkirchen, Germany {rossow,dietrich}@internet-sicherheit.de ‡ VU University Amsterdam, The Netherlands {d.a.andriesse,h.j.bos}@vu.nl § Fraunhofer FKIE, Bonn, Germany, [email protected] † Dell SecureWorks, [email protected] ¶ CrowdStrike, Inc. Abstract—Centralized botnets are easy targets for takedown disrupted using the traditional approach of attacking critical efforts by computer security researchers and law enforcement. centralized infrastructure. Thus, botnet controllers have sought new ways to harden the Even though active P2P botnets such as the Zeus P2P infrastructures of their botnets. In order to meet this objective, some botnet operators have (re)designed their botnets to use variant, Sality, ZeroAccess and Kelihos have survived in the Peer-to-Peer (P2P) infrastructures. Many P2P botnets are far wild for as long as five years, relatively little is known about more resilient to takedown attempts than centralized botnets, the sizes of these botnets. It is difficult to estimate a P2P because they have no single points of failure. However, P2P botnets are subject to unique classes of attacks, such as node botnet’s size, for a number of reasons. P2P botnets often enumeration and poisoning. In this paper, we introduce a use custom protocols, so that researchers must first reverse formal graph model to capture the intrinsic properties and engineer the protocol and encryption before they can track fundamental vulnerabilities of P2P botnets. We apply our the botnet’s population. -
Zerohack Zer0pwn Youranonnews Yevgeniy Anikin Yes Men
Zerohack Zer0Pwn YourAnonNews Yevgeniy Anikin Yes Men YamaTough Xtreme x-Leader xenu xen0nymous www.oem.com.mx www.nytimes.com/pages/world/asia/index.html www.informador.com.mx www.futuregov.asia www.cronica.com.mx www.asiapacificsecuritymagazine.com Worm Wolfy Withdrawal* WillyFoReal Wikileaks IRC 88.80.16.13/9999 IRC Channel WikiLeaks WiiSpellWhy whitekidney Wells Fargo weed WallRoad w0rmware Vulnerability Vladislav Khorokhorin Visa Inc. Virus Virgin Islands "Viewpointe Archive Services, LLC" Versability Verizon Venezuela Vegas Vatican City USB US Trust US Bankcorp Uruguay Uran0n unusedcrayon United Kingdom UnicormCr3w unfittoprint unelected.org UndisclosedAnon Ukraine UGNazi ua_musti_1905 U.S. Bankcorp TYLER Turkey trosec113 Trojan Horse Trojan Trivette TriCk Tribalzer0 Transnistria transaction Traitor traffic court Tradecraft Trade Secrets "Total System Services, Inc." Topiary Top Secret Tom Stracener TibitXimer Thumb Drive Thomson Reuters TheWikiBoat thepeoplescause the_infecti0n The Unknowns The UnderTaker The Syrian electronic army The Jokerhack Thailand ThaCosmo th3j35t3r testeux1 TEST Telecomix TehWongZ Teddy Bigglesworth TeaMp0isoN TeamHav0k Team Ghost Shell Team Digi7al tdl4 taxes TARP tango down Tampa Tammy Shapiro Taiwan Tabu T0x1c t0wN T.A.R.P. Syrian Electronic Army syndiv Symantec Corporation Switzerland Swingers Club SWIFT Sweden Swan SwaggSec Swagg Security "SunGard Data Systems, Inc." Stuxnet Stringer Streamroller Stole* Sterlok SteelAnne st0rm SQLi Spyware Spying Spydevilz Spy Camera Sposed Spook Spoofing Splendide -
Downloading and Running
City Research Online City, University of London Institutional Repository Citation: Meng, X. (2018). An integrated networkbased mobile botnet detection system. (Unpublished Doctoral thesis, City, Universtiy of London) This is the accepted version of the paper. This version of the publication may differ from the final published version. Permanent repository link: https://openaccess.city.ac.uk/id/eprint/19840/ Link to published version: Copyright: City Research Online aims to make research outputs of City, University of London available to a wider audience. Copyright and Moral Rights remain with the author(s) and/or copyright holders. URLs from City Research Online may be freely distributed and linked to. Reuse: Copies of full items can be used for personal research or study, educational, or not-for-profit purposes without prior permission or charge. Provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. City Research Online: http://openaccess.city.ac.uk/ [email protected] AN INTEGRATED NETWORK- BASED MOBILE BOTNET DETECTION SYSTEM Xin Meng Department of Computer Science City, University of London This dissertation is submitted for the degree of Doctor of Philosophy City University London June 2017 Declaration I hereby declare that except where specific reference is made to the work of others, the contents of this dissertation are original and have not been submitted in whole or in part for consideration for any other degree or qualification in this, or any other University. This dissertation is the result of my own work and includes nothing which is the outcome of work done in collaboration, except where specifically indicated in the text. -
[Recognising Botnets in Organisations] Barry Weymes Number
[Recognising Botnets in Organisations] Barry Weymes Number: 662 A thesis submitted to the faculty of Computer Science, Radboud University in partial fulfillment of the requirements for the degree of Master of Science Eric Verheul, Chair Erik Poll Sander Peters (Fox-IT) Department of Computer Science Radboud University August 2012 Copyright © 2012 Barry Weymes Number: 662 All Rights Reserved ABSTRACT [Recognising Botnets in Organisations] Barry WeymesNumber: 662 Department of Computer Science Master of Science Dealing with the raise in botnets is fast becoming one of the major problems in IT. Their adaptable and dangerous nature makes detecting them difficult, if not impossible. In this thesis, we present how botnets function, how they are utilised and most importantly, how to limit their impact. DNS Dynamic Reputations Systems, among others, are an innovative new way to deal with this threat. By indexing individual DNS requests and responses together we can provide a fuller picture of what computer systems on a network are doing and can easily provide information about botnets within the organisation. The expertise and knowledge presented here comes from the IT security firm Fox-IT in Delft, the Netherlands. The author works full time as a security analyst there, and this rich environment of information in the field of IT security provides a deep insight into the current botnet environment. Keywords: [Botnets, Organisations, DNS, Honeypot, IDS] ACKNOWLEDGMENTS • I would like to thank my parents, whom made my time in the Netherlands possible. They paid my tuition, and giving me the privilege to follow my ambition of getting a Masters degree. • My dear friend Dave, always gets a mention in my thesis for asking the questions other dont ask. -
SHS Branding LAUNCH
MESSAGELABS INTELLIGENCE MESSAGELABS INTELLIGENCE FEBRUARY 2010 Spam Surges in February while Message Size Shrinks Welcome to the February edition of the MessageLabs Intelligence monthly report. This report provides the latest threat trends for February 2010 to keep you informed regarding the ongoing fight against viruses, spam and other unwelcome content. REPORT HIGHLIGHTS Spam – 89.4% in February (an increase of 5.5% since January) Viruses – One in 302.8 emails in February contained malware (an increase of 0.02% since January) Phishing – One in 456.3 emails comprised a phishing attack (an increase of 0.04% since January) Malicious websites – 4,998 websites blocked per day (an increase of 184% since January) 41.6% of all malicious domains blocked were new in February (a decrease of 0.1% since January) 13.3 of all web-based malware blocked was new in February (an increase of 1.2% since January) Grum and Rustock to Blame for February Spam Surge While Volume Grows, Spam File Size Shrinks Waledac Botnet Makes a Comeback before its Demise Olympics-Themed Targeted Malware Gumblar Update REPORT ANALYSIS Grum and Rustock to Blame for Surge in February Spam As expected this time of year, spammers launched a number of spam campaigns related to St. Valentine‟s Day, celebrated on February 14. Around this time, spammers often change their spam runs to include references to the special date. However, the 5.5% increase in spam this month cannot be completely blamed on St. Valentine‟s Day alone. Figure 1 highlights the most recent spam surges in February, and further analysis reveals the underlying cause of these increases. -
Kelihos Botnet: a Never-Ending Saga
2017 Annual ADFSL Conference on Digital Forensics, Security and Law Proceedings May 15th, 10:00 AM Kelihos Botnet: A Never-Ending Saga Arsh Arora University of Alabama, Birmingham, [email protected] Max Gannon University of Alabama, Birmingham, [email protected] Gary Warner University of Alabama, Birmingham, [email protected] Follow this and additional works at: https://commons.erau.edu/adfsl Part of the Defense and Security Studies Commons, Forensic Science and Technology Commons, Information Security Commons, OS and Networks Commons, Other Computer Sciences Commons, and the Science and Technology Studies Commons Scholarly Commons Citation Arora, Arsh; Gannon, Max; and Warner, Gary, "Kelihos Botnet: A Never-Ending Saga" (2017). Annual ADFSL Conference on Digital Forensics, Security and Law. 4. https://commons.erau.edu/adfsl/2017/papers/4 This Peer Reviewed Paper is brought to you for free and open access by the Conferences at Scholarly Commons. It has been accepted for inclusion in Annual ADFSL Conference on Digital Forensics, Security and Law by an (c)ADFSL authorized administrator of Scholarly Commons. For more information, please contact [email protected]. Kelihos Botnet: A Never-Ending Saga CDFSL Proceedings 2017 KELIHOS BOTNET: A NEVER-ENDING SAGA Arsh Arora, Max Gannon, Gary Warner University of Alabama at Birmingham 1201 University Blvd, Birmingham, AL 35233 fararora, gannonm, [email protected] ABSTRACT This paper investigates the recent behavior of the Kelihos botnet, a spam-sending botnet that accounts for many millions of emails sent each day. The paper demonstrates how a team of students are able to perform a longitudinal malware study, making significant observations and contributions to the understanding of a major botnet using tools and techniques taught in the classroom. -
00079-141173.Pdf (5.08
CHRIS JAY HOOFNAGLE Adjunct Full Professor School of Information School of Law Faculty Director Berkeley Center for Law & Technology August 22, 2017 University of California, Berkeley VIA THE WEB Berkeley, CA Tel: 5 Federal Trade Commission https://hoofnagle.berkeley.edu Office of the Secretary 600 Pennsylvania Avenue NW. Suite CC–5610 (Annex B) Washington, DC 20580 Re: Comment of Chris Hoofnagle on Controlling the Assault of Non-Solicited Pornography and Marketing Act (CAN–SPAM Rule, 16 CFR part 316, Project No. R711010) Dear Mr. Brown, Thank you for soliciting public comment on the CAN–SPAM Rule. My comments below focus on the need for the CAN–SPAM Rule, the costs that spam imposes on consumers and the economy, the prospect that technical interventions on intermediaries can be effective, that spam senders strategically use transaction costs to deter recipients from opting out, that senders impose privacy penalties on those who opt out, for the FTC to consider third-party lookups for email addresses to be an aggravated violation of CAN–SPAM, to revisit that the idea of a Do-Not-Email Registry, and finally, to keep the computer science literature on spam in focus. There is a Continuing Need for the CAN–SPAM Rule Because the Injuries Caused by Spam Are Economic and Social and Are on Par with Serious Crimes In a 2001 speech, FTC Chairman Timothy Muris identified spam messages as injurious under the Commission’s “harm-based” approach.1 Today, the majority of e-mail is spam. Senders of marketing e- mails can leverage the technical and economic properties of the internet to send tens of billions of messages a day. -
Characterisation of the Kelihos.B Botnet
Characterisation of the Kelihos.B Botnet Max Kerkers, Jos´eJair Santanna and Anna Sperotto Design and Analysis of Communication Systems (DACS) University of Twente Enschede, The Netherlands [email protected], [email protected], [email protected] Abstract. Botnets are organized networks of infected computers that are used for malicious purposes. An example is Kelihos.B, a botnet of the Kelihos family used primarily for mining bitcoins, sending spam and stealing bitcoin wallets. A large part of the Kelihos.B botnet was sink- holed in early 2012 and since then bots are sending requests to controlled servers. In this paper, we analyze and characterize the behavior of Keli- hos.B. Our analysis is based on the log file of the bot request logged at the sinkhole from March 2012 to early November 2013. We investigate both the overall characteristics of the botnets, as well as on its evolu- tion over time since the time of the sinkholing. Our results indicate that, although this trend is decreasing, there are possibly still newly infected bots even more than a year from the original sinkholing. Keywords: Botnet, Kelihos.B, Hlux2, Characterisation, Sinkhole 1 Introduction Botnets are one of the modern threats to society. A botnet consists of several malware-infected computers (bots) that are controlled by the owners of the bot- net. Botnets have for example been used to send spam or to launch distributed denial of service (DDoS) attacks [1]. One of such botnets is Kelihos.B, which was primarily used for mining bitcoins, sending spam and stealing bitcoin wallets [2]. -
Email Threats 2017
Internet Security Threat Report ISTR Email Threats 2017 An ISTR Special Report Analyst: Ben Nahorney October 2017 Contents Executive summary and key findings Malware Spambots BEC scams Spam User email behavior Protection and best practices Internet Security Threat Report Contents 3 Executive summary and key findings 5 Big numbers 7 Malware 8 Impact 9 Malware distribution 11 Spambots 12 Necurs 12 BlankSlate 12 Fioesrat 13 Silentbrute 13 Pandex 13 Oliner 13 Sarvdap 13 Emotet 13 Waledac 14 BEC scams 15 Latest trends 16 Beyond wire transfers 16 Typosquatting 16 Phishing Figures and Tables 16 Phishing scams of note 8 Email users targeted by malware per month 17 Spam 8 Percent of email users targeted by malware by industry 18 Advertising spam 9 Top three malicious email themes 19 Other distribution methods 10 Downloader detections by month 19 The cost of spam 10 URL malware rate 12 Necurs botnet activity 21 User email behavior 13 Waledac (Kelihos) botnet activity 23 Protection and best practices 15 BEC emails received per organization 24 Email security 15 Top subject lines in BEC scam emails 24 CloudSOC 16 Phishing rate 24 Download Insight 18 Spam rate by half year 24 Advanced antivirus engine 18 Spam campaign advertising pharmaceuticals 24 SONAR behavior engine 19 Bitcoin scam email 24 Ongoing development 19 Example Tofsee email 25 Best practices 19 The website Tofsee email links to 26 About Symantec 22 Broadly shared emails with sensitive information 26 More Information 22 Number of registered TLS email domains Internet Security Threat Report Executive summary and key findings Section 00 00 Executive summary and key findings Page 4 Email Threats 2017 Executive summary Key findings Email is everywhere. -
Offensive Anti-‐Botnet
OFFENSIVE NTI A -‐BOTNET -‐ SO YOU WANT TO TAKE OVER A BOTNET… David Di�rich NANOG 59 University of Washington October 8, 2013 Phoenix, AZ Slides available at: h�p://staff.washington.edu/di�rich/talks/nanog59/ Copyright (C) 2013, David Di�rich. All rights reserved. 1 AGENDA “I’m figh�ng back. What’s the big deal?” Ethics and The Menlo Report What it takes to “do it right” Case studies (maybe not) and observa�ons Conclusions Copyright (C) 2013, David Di�rich. All rights reserved. 2 FRUSTRATION AND LOATHING "We will con�nue to fight the threat of botnets and the criminals behind them," says Davis. "We'll start by dismantling their infrastructure and won't stop un�l they're standing in front of a judge.” Chris Davis, CEO for Defence Intelligence (re: Mariposa Botnet) h�p://security.ulitzer.com/node/1305941 “Law enforcement is not doing their job.” “I’m �red of being passive and taking punches. It’s �me to go on the offensive.” “I have a right to self-‐defense.” S. Ortloff. FAQ: Disabling the new Hlux/Kelihos Botnet, March 2012. h�p://www.securelist.com/en/blog/208193438/FAQ_Disabling_the_new_Hlux_Kelihos_Botnet Copyright (C) 2013, David Di�rich. All rights reserved. 3 SINKHOLE AS A SERVICE? Copyright (C) 2013, David Di�rich. All rights reserved. 4 …OR AS SLIPPERY SLOPE? Copyright (C) 2013, David Di�rich. All rights reserved. 5 EXISTING ETHICS STANDARDS The IEEE, ACM, etc: Codes of Ethics The Belmont Report, the Na�onal Research Act, and Ins�tu�onal Review Boards (IRB) – 45 CFR 46 “Rules of Engagement” – The Law of Armed Conflict – Di�rich/Himma: Ac�ve Response Con�nuum Other Organiza�onal Codes (Universi�es, Corpora�ons, etc.) Copyright (C) 2013, David Di�rich. -
Promoting Stakeholder Action Against Botnets and Other Automated Threats
CROWDSTRIKE // SOLUTION BRIEF PROMOTING STAKEHOLDER ACTION AGAINST BOTNETS AND OTHER AUTOMATED THREATS NATIONAL TELECOMMUNICATIONS AND INFORMATION ADMINISTRATION, U.S. DEPARTMENT OF COMMERCE JULY 13, 2017 | WWW.CROWDSTRIKE.COM I. BACKGROUND In response to the U.S. Department of Commerce, National Telecommunications and Information Administration’s (NTIA) Request For Comment (RFC) on Promoting "Eight out of 10 attack Stakeholder Action Against Botnets and Other Automated Threats [1], CrowdStrike® offers the following views. We commend the focus on this critically important issue vectors that resulted in the May 11 Presidential Executive Order on Strengthening the Cybersecurity of Federal Networks and Critical Infrastructure [2] and this follow-through effort. in a successful The articulated intent, to "lead an open and transparent process to identify and promote action by appropriate stakeholders to improve the resilience of the Internet breach used fileless and communications ecosystem and to encourage collaboration with the goal of attack techniques.” dramatically reducing threats perpetrated by automated and distributed attacks (e.g., botnets)" is timely and appropriate. Source: CrowdStrike Cyber Intrusion Services Case Book As a leading provider of cybersecurity threat intelligence, services, and endpoint protection software, CrowdStrike has a unique vantage on this topic. The organization has assisted in multiple botnet investigation, disruption and takedown efforts, notably against the GameOver Zeus and Kelihos botnets [3] and actively monitors emerging threats along these lines. Some of the lessons learned during those efforts are captured herein. This comment does not seek to address every issue raised in the RFC; it is limited to areas for which CrowdStrike may offer particular insights. II.