ANALYSING CYBERCRIME UNDERGROUND ECONOMY USING DATA ANALYTICS

Given the rapid acceleration of digital hazards, little work has been carried out into the subject's institutions or procedures that could help to guide scientists and specialists in Information Systems that handle digital security. There is also no discussion of Crime as a Service that is a criminal action program which facilitates decentralized cyber-crime. The examination whole and useful cyber- crime issue that we see has persuaded us to research underground cybercrime economy by adopting information research strategy from a scientific point of view of the structure. To accomplish this objective, we will propose 1. a structure to information investigation to break down the underground cyber-crime, 2. CaaS and product definitions for wrong-doing and 3. a model for related order. Furthermore, 4. Create a software web-app to show how the proposed system and request structure can really be actualized. At that point, we will use web applications to explore the under-ground economy of cyber-crime by breaking down a huge data-set from the web-based network. In implementing the strategy- based structure science review, this review applies objects, institutions, and strategies to the project here. It also gives professional expertise to recommend rules on how governments and associations can plan underground cybercrime assaults in all businesses

Multistation study of nighttime scintillations in low latitudes: Evidence of control by equatorial F region irregularities

VHF nighttime scintillations, recorded during a high solar activity period at a meridian chain of stations covering a magnetic latitude belt of 3°–21°N (420 km subionospheric points) are analyzed to investigate the influence of equatorial spread F irregularities on the occurrence of scintillation at latitudes away from the equator. Observations show that saturated amplitude scintillations start abruptly about one and a half hours after ground sunset and their onset is almost simultaneous at stations whose subionospheric points are within 12°N latitude of the magnetic equator, but is delayed at a station whose subionospheric point is at 21°N magnetic latitude by 15 min to 4 hours. In addition, the occurrence of postsunset scintillations at all the stations is found to be conditional on their prior occurrence at the equatorial station. If no postsunset scintillation activity is seen at the equatorial station, no scintillations are seen at other stations also. The occurrence of scintillations is explained as caused by rising plasma bubbles and associated irregularities over the magnetic equator and the subsequent mapping of these irregularities down the magnetic field lines to the F region of higher latitudes through some instantaneous mechanism; and hence an equatorial control is established on the generation of postsunset scintillation-producing irregularities in the entire low-latitude belt

A multi-station satellite radio beacon study of ionospheric variations during total solar eclipses

Faraday rotation data obtained at Delhi, Kurukshetra, Hyderabad, Bangalore, Waltair, Nagpur and Calcutta during the total solar eclipse of 16 February 1980 and at Delhi during the total solar eclipse of 31 July 1981 have been analysed to detect the gravity waves generated by a total solar eclipse as hypothesized by Chimonas and Hines (1970, J. geophys. Res. 75, 875). It has been found that gravity waves can be generated by a total solar eclipse but their detection at ionospheric heights is critically dependent on the location of the observing station in relation to the eclipse path geometry. The distance of the observing station from the eclipse path should be more than 500 km in order to detect such gravity waves

Co-ordinated multistation VHF scintillation observations in India during March-April 1991

69-81A number of VHF scintillation stations are currently operating in India as part of the All India Co-ordinated Programme of Ionospheric and Thermospheric Studies (AICPITS). The chain covers latitudes right from the magnetic equator to beyond the anomaly crest region. During March-April 1991 co-ordinated observations were made at all the stations of the chain and the data collected analysed jointly. The quarter-hourly values of the occurrence of scintillations along with the start and end times of the patches of scintillations during each night form the data base. Nocturnal variations of the percentage occurrence of scintillations, histograms of percentage occurrence of the number of patches of scintillations during the course of a night and of the patch duration have been computed for each station. Scintillations generally start between 1930and 2000 hrsIST The stations close to the magnetic equator show strong scintillations which last till early morning in a single patch or sometimes with a weakening or absence of scintillations for a short Lime duration. For the stations in the anomaly crest region or beyond, scintillations occur in small patches with periods of no scintillations in between. The nocturnal variations show maximum scintillation activity of about 50 per cent in the equatorial region which drops to about 30 per cent in the anomaly crest region and further reduces to 10 per cent at Delhi, the Northern-most location in the chain. From the latitudinal variations of the percentage occurrence of scintillations, the half width of the equatorial belt of scintillations has been found to vary with local time. It extends right up to Bombay or even beyond it around 2000-2200 hrs but is much narrower after midnight. The occurrence of spread-F during March-April 1991 from ionosonde data at Thumba, Waltair and Ahmedabad representing stations in the equatorial zone, intermediate zone and the anomaly crest zone have been studied. There is a fairly good agreement between the nocturnal variations of spread-F and scintillations