From .academy to .zone

Halvorson, Tristan; Der, Matthew F.; Foster, Ian D L; Savage, Stefan; Saul, Lawrence K.; Voelker, Geoffrey M.

doi:10.1145/2815675.2815696

Cited by 26 publications

(4 citation statements)

References 5 publications

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“…Attackers also leverage new gTLDs for their cyber-attacks. For example, Halvorson et al [20] showed that domain names using new gTLDs are twice as likely to appear on blacklists; this means attackers now actively make use of new gTLDs. Obviously, to keep up with such situations, predator needs to obtain real-time access privileges to highly confidential data inside the each new gTLD's registry.…”

Section: Historic Relationship Approachmentioning

confidence: 99%

DomainProfiler: toward accurate and early discovery of domain names abused in future

Chiba

Yagi

Akiyama

et al. 2017

Int. J. Inf. Secur.

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Domain names are at the base of today's cyber-attacks. Attackers abuse the domain name system (DNS) to mystify their attack ecosystems; they systematically generate a huge volume of distinct domain names to make it infeasible for blacklisting approaches to keep up with newly generated malicious domain names. To solve this problem, we propose DomainProfiler for discovering malicious domain names that are likely to be abused in future. The key idea with our system is to exploit temporal variation patterns (TVPs) of domain names. The TVPs of domain names include information about how and when a domain name has been listed in legitimate/popular and/or malicious domain name lists. On the basis of this idea, our system actively collects historical DNS logs, analyzes their TVPs, and predicts whether a given domain name will be used for malicious purposes. Our evaluation revealed that DomainProfiler can predict malicious domain names 220 days beforehand with a true positive rate of 0.985. Moreover, we verified the effectiveness of our system in terms of the benefits from our TVPs and defense against cyber-attacks.

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Section: Historic Relationship Approachmentioning

confidence: 99%

DomainProfiler: toward accurate and early discovery of domain names abused in future

Chiba

Yagi

Akiyama

et al. 2017

Int. J. Inf. Secur.

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“…In the latter case, they find extensive utilization in monitoring doses received via radiation workers on a routine basis, such as monthly [7,13]. However, the past studies reported a few limitations of commercial TLDs [14,15]. For instance, TLD-100 has low sensitivity and shows superliner behavior of response doses; TLD-100H reveals 25 times higher sensitivity than TLD-100 but still suffers sublinear response doses, which reduce the reading accuracy at a special range of radiation doses.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence and thermoluminescence dosimetry properties of Ag/Y co‐doped ZnO nanophosphor for radiation measurements

Abdurabu Thabit,

Ismail,

Kabir

et al. 2024

Luminescence

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This work explores the thermoluminescence (TL) and photoluminescence (PL) properties of Ag/Y co‐doped zinc oxide (ZnO) nanophosphor. The proposed dosimeter was prepared by the coprecipitation method and sintered at temperatures from 400°C to 1000°C in an air atmosphere. Raman spectroscopy was studied to investigate the structural features of this composition. The new proposed dosimeter revealed two peaks at 150°C and 175°C with a small shoulder at high temperature (225°C). The PL spectrum showed strong green emissions between 500 to 550 nm. The Raman spectrum showed many bands related to the interaction between ZnO, silver (Ag), and yttrium oxide (Y2O3). The rising sintering temperature enhanced the TL glow curve intensity. The Ag/Y co‐doped ZnO nanophosphor showed an excellent linearity index within a dose from 1 to 4 Gy. The minimum detectable dose (MDD) of the Ag/Y co‐doped ZnO nanopowder (pellets) equaled 0.518 mGy. The main TL properties were achieved in this work as follows: thermal fading (37% after 45 days at 1 and 4 Gy), optical fading (53% after 1 h and 68% after 6 h by exposure to sunlight), effective atomic number (27.6), and energy response (flat behavior from 0.1 to 1.3 MeV). Finally, the proposed material shows promising results nominated to be used for radiation measurements.

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“…This expansion of gTLDs by ICANN represented an important development in the evolution of the DNS, and while it brought some benefits for users, businesses, and other stakeholders, it also created new security challenges [38].…”

Section: Dns Hierarchical Entitiesmentioning

confidence: 99%

“…We focus on this intersection of TLDs that are present in both zone files. Since there is significant variation in the types, history, management, and use of top-level domains [38,86], we classify these TLDs into three categories: ccTLDs (e.g., .jp and .de), gTLDs ("original" gTLDs: .com, .edu, .gov, .mil, .org, .net, .int) and ngTLDs (.tokyo, .xyz, .top).…”

Section: Anycast Adoption By Tldsmentioning

confidence: 99%

Everything in its right place: Improving DNS resilience

Sommese¹

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In 2023, the Domain Name System (DNS) will celebrate 40 years since its creation. Despite the passing of four decades, the DNS continues to play a fundamental role in today's Internet. Specifically, the DNS provides the essential service of translating human-readable domain names (e.g., example.org) to IP addresses (e.g., 93.184.216.34).Over the years, the Internet has become increasingly vital to our modern society. The continuous flow of information that takes place on the Internet every day cannot be stopped without catastrophic consequences. In addition, services of crucial importance for people's everyday lives, such as government services, are increasingly transitioning to digital infrastructure. Given the importance of the DNS for the functioning of the Internet and modern society, any issues that the DNS encounters nowadays would have far-reaching consequences. However, over the past 40 years, weaknesses in the DNS system have emerged. One of the most significant cybersecurity threats facing the DNS today are Distributed Denial of Service (DDoS) attacks, which can have a severe impact on the availability of the DNS ecosystem. Recent events show that targeted attacks on even a small portion of the DNS infrastructure can impact millions of services and users.In this scenario, a comprehensive characterization of the resilience mechanisms of the DNS authoritative infrastructure, along with an analysis of threats against this resilience, is missing. This gap has led us to the main goal and contribution of this thesis. To achieve this goal, we use a mixed measurement and analytical approach, which has focused on different detractors of DNS resilience. Specifically, throughout the course of this thesis, we analyze misconfigurations and vulnerabilities resulting from miscommunication between operators, assess the choices made by these operators in creating more robust and stable deployments in the face of existing best practices, and evaluate the effectiveness of the deployed techniques in overcoming DDoS attacks.Focusing on our contributions, we show that while the distributed nature of the DNS has enabled its scalability and success, it also presents risks to its resilience. Inconsistency in the DNS hierarchy resulting from miscommunications between stakeholders increases the attack surface and affects resilience, enabling lame delegations and hijacking with potentially severe consequences. SommarioIl 2023 segna il quarantenario dalla creazione del Sistema di Risoluzione Nomi a Dominio, conosciuto come DNS. Nel corso del tempo, il DNS ha sempre svolto un ruolo fondamentale nell'ecosistema di Internet: possiamo considerarlo come un elenco telefonico, in quanto il DNS traduce nomi di dominio facili da ricordare in indirizzi IP (similarmente alle nostre pagine gialle per i numeri di telefono). Negli anni, Internet ha assunto sempre più importanza e i suoi quarant'anni iniziano a pesare sul DNS. Ogni giorno, infatti, assistiamo ad un flusso costante di informazioni che scorrono sulle autostrade digitali e che non p...

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From .academy to .zone

Cited by 26 publications

References 5 publications

DomainProfiler: toward accurate and early discovery of domain names abused in future

DomainProfiler: toward accurate and early discovery of domain names abused in future

Photoluminescence and thermoluminescence dosimetry properties of Ag/Y co‐doped ZnO nanophosphor for radiation measurements

Everything in its right place: Improving DNS resilience

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