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Aaron Zimba Zhaoshun Wang Mwenge Mulenga 《Journal of Organizational Computing & Electronic Commerce》2019,29(1):40-59
Crypto-mining attacks have emerged as a new generation of web-based attacks which have seen cybercriminals eschew the infamous crypto ransomware. The watering hole attack vector has by far been the most widely employed attack methodology but it faces the task of luring the victim to the infected web resources. However, cryptojacking injection presents a paradigm shift to web-based crypto-mining attacks in that it eliminates the need for a pivotal third-party such as the exploitable web server. Thus, instead of attacking credit card and other private information of e-commerce users, attackers seek to maliciously abuse a victim’s CPU to generate cryptocurrency. In this paper, we investigate and evaluate cryptojacking injection – a state-of-the-art web-centric attack vector in the crypto-mining attacks landscape. We formulate an attack model based on finite state machines which depicts the various breaches of confidentiality, integrity and availability in the web system as the attack progresses. We show how this new attack vector attacks some of the core components of e-commerce (URL, HTTP and HTML) to generate Monero crypto currency from benign web users. We evaluate our modeling approach with a series of experiments with two attack scenarios using different operating systems. Results show that the attack is indeed cross-platform and feasible on any operating system of a browser-capable device. We analyze the generated network traffic during the attack and draw features such as URLs and the parsed files, the associated cryptographic hashes, and the IP addresses of the crypto-mining domains. These, together with host-based features such as exhaustive CPU usage can be used as indicators of compromise and subsequently act as feed into intrusion detection systems. 相似文献
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The most pronounced reason for providing fiscal incentives to attract foreign direct investment (FDI) is that FDI is an effective conduit for technology transfer through technology spillovers to domestically owned firms in the host country. This study analyzes the nature and significance of productivity externalities of FDI to local firms, both in terms of intra-industry and inter-industry spillovers, using firm-level data from Zambia. The results show little evidence in support of intra-industry productivity spillovers from FDI on one hand, and significant inter-industry knowledge spillovers occurring through linkages. The net impact of FDI depends on the interaction between intra-industry and inter-industry productivity effects. 相似文献
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Abstract: During the 1990s, the Zambian economy underwent major structural adjustments. This paper presents an application of a recently proposed poverty decomposition that attributes changes in poverty to income growth, changes in inequality and population dynamics. Our results confirm earlier findings that the existence of a severe urban bias in the economy effectively shielded large parts of the rural population from the economic slump caused by the structural adjustments. In addition, we find that the exodus from urban centres that followed the adjustments contributed significantly to the increase in national poverty. The latter finding highlights the importance of considering population movements when studying poverty, especially in situations where policy changes affect migrant labour, as was the case for the Zambian copper industry. 相似文献
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The purpose of this paper is to implement empirically a variant of the new theory of exchange-rate targeting, suitable for high-inflation, small, open economies. We formulate an expectations-induced relationship between the exchange rate and the fundamental, subject to random shocks and target-zone constraints on rates of depreciation. the empirical analysis provides estimates for the key parameters of the exchange-rate dynamic equation, and thereby identifies the unique roles played by policy variables and market fundamentals in foreign-exchange markets. 相似文献
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Saunders Benjamin Sim Julius Kingstone Tom Baker Shula Waterfield Jackie Bartlam Bernadette Burroughs Heather Jinks Clare 《Quality and Quantity》2018,52(4):1893-1907
Quality & Quantity - Saturation has attained widespread acceptance as a methodological principle in qualitative research. It is commonly taken to indicate that, on the basis of the data that... 相似文献
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Samuel Mulenga Bwalya 《Experimental Economics》2007,10(2):181-182
This dissertation focuses on the political economy of fisheries governance. The study develops a formal model of fisheries
governance by combining the features of the common pool fishery and the political institution of lobbying; designs a laboratory
fishery governance institution and conducts economic experiments to test the hypotheses derived from the formal model. Specifically,
the study analyzes how fishing firms invest in efforts to influence fishery regulation and management through voluntary contribution
lobbying. The study also analyses and compares contribution and effort behavior in the lobbying and the CPR using data from
economic experiments.
The results indicate that lobbying to change suboptimal fishery regulations was significantly below the subgame perfect equilibrium
prediction and contributions to raise the cap were significantly different than contributions to lower the cap toward the
social optimum. Study results show that subjects successfully lobbied to raise inefficiently low fishing quotas, but were
unable to lobby to reduce inefficiently high fishing quotas. Detailed analysis of subjects’ contribution and effort behavior
suggest that despite the interesting benefit-cost duality between pure public goods and CPRs, the pattern of cooperative behavior
in these two social dilemma situations was different and the level of cooperation in the voluntary contribution lobbying experiment
was lower than those reported in other public goods experiments.
To provide external validity to these experimental findings, the study further analyzes and compares lobbying expenditures
in the fishery sector with those in other natural resource industries using field data from the United States. A comparison
of actual lobbying expenditures as percentage of valued added shows that lobbying effort in the U.S fishery sector is not
significantly different than those in other natural resource industries such as mining and electric utility industries, but
the pattern of lobbying is different. Whereas fishing firms lobby through associations or pressure groups, firms in other
natural resource industries lobby unilaterally. This observation suggests that differences in industrial structure and incentives
influence the pattern of lobbying and the lobbying behavior of firms across industries.
The theoretical predictions derived from the formal model of fisheries governance are consistent with our experimental findings
and with the field data on lobbying in the US fisheries sector. These findings suggest that heterogeneity drives rent-seeking
activities in the US fisheries sector and that fishing firms attempt to circumvent political collective action problems by
forming and lobbying through associations of stakeholders with relatively homogenous policy preferences.
JEL Classification D22, D72, D78, H41
Advisor: Prof. Jon G. Sutinen 相似文献
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