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[{"key": "dc.contributor.advisor", "value": "M\u00f6nk\u00f6l\u00e4, Sanna", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Yl\u00e4-Sahra, Arttu", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2017-05-10T11:28:37Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2017-05-10T11:28:37Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2017", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/53873", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Kiristyishaittaohjelmat ovat nyky\u00e4\u00e4n huomattavan yleisi\u00e4, ja ne aiheuttavat iskiess\u00e4\u00e4n sek\u00e4 taloudellisesti ett\u00e4 toiminnallisesti vakavia vahinkoja. Tutkielmassa tutkittiin teoreettis-kvalitatiivisella kirjallisuusanalyysill\u00e4, millaisia piirteit\u00e4 nykyaikaiset kiristyshaittaohjelmat sis\u00e4lt\u00e4v\u00e4t. L\u00f6yd\u00f6sten pohjalta pyrittiin muodostamaan luettelo hyvist\u00e4 k\u00e4yt\u00e4nteist\u00e4. \n\nT\u00e4rkeimpin\u00e4 l\u00f6yd\u00f6ksin\u00e4 havaittiin selv\u00e4 riippuvuus loppuk\u00e4ytt\u00e4jien puutteellisen ymm\u00e4rryksen ja haittaohjelmien tartuntariskin v\u00e4lill\u00e4; sama yhteys havaittiin my\u00f6s l\u00f6ys\u00e4sti suojattujen ja p\u00e4ivitt\u00e4m\u00e4tt\u00f6mien j\u00e4rjestelmien osalta. Nykyaikaiset kiristyshaittaohjelmat ovat l\u00f6yd\u00f6sten perusteella kryptogra\ufb01silta menetelmilt\u00e4\u00e4n hyvin tehokkaita, joten ajantasaisten varmuuskopioiden yll\u00e4pidon t\u00e4rkeys korostui. \n\nLis\u00e4ksi suunnitelmallisuuden t\u00e4rkeys korostui: haittaohjelmat toimivat hyvin nopeasti, joten toimivan h\u00e4t\u00e4tilasuunniteman olemassaolo on ensiarvoista. Tietoverkkojen suurin roolin vuoksi korostui tarve suunnitella turvaj\u00e4rjestelm\u00e4t siten, ett\u00e4 haittaohjelmat eiv\u00e4t p\u00e4\u00e4se vapaasti muodostamaan yhteyksi\u00e4 keskuspalvelimiin tai\nlevi\u00e4m\u00e4\u00e4n tietoverkkojen kautta.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Ransomware programs are very common today, and are a cause of signi\ufb01cant economical and operational damages upon striking. In this thesis, qualitative and theoretic literature analysis was used to \ufb01nd out common traits of modern ransomware programs - these traits were then used to build a list of good practices for dealing with ransomware threats. \n\nCore \ufb01ndings include a noticeable correlation between user awareness and the risk of infection; similar correlation was found for out-of-date, poorly secured systems and risk of infection. It was also found that modern ransomware programs tend to use highly effective cryptography, making up-to-date backups vital. \n\nThe importance of preparedness is emphasized by the fact that a proper IRP (incident response plan) is highly important due to the time-sensitiveness of attacks; also, there are clear bene\ufb01ts for designing systems to hinder C&C (command and control) traf\ufb01c and propagation of ransomware programs through computer networks.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Arttu Yl\u00e4-Sahra (eearyla) on 2017-05-10 11:28:37.028949. Form: Kandidaatintutkielma -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/kandin-tutkielma-lomake). JyX data: [jyx_publishing-allowed (fi) =True]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija.group@korppi.jyu.fi) on 2017-05-10T11:28:37Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201705102270.pdf: 148477 bytes, checksum: 33a962e6e9b1ca73e9ec0756bffb7d4b (MD5)\nlicense.html: 4793 bytes, checksum: c5c66f62091fe02437e204b8dc568956 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2017-05-10T11:28:37Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201705102270.pdf: 148477 bytes, checksum: 33a962e6e9b1ca73e9ec0756bffb7d4b (MD5)\nlicense.html: 4793 bytes, checksum: c5c66f62091fe02437e204b8dc568956 (MD5)\n Previous issue date: 2017", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "21", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "kiristyshaittaohjelmat", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "toiminta", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "torjunta", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "ehk\u00e4isy", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Kiristyshaittaohjelmien toiminta ja ehk\u00e4isy", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "bachelor thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201705102270", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Kandidaatintutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Bachelor's thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Informaatioteknologian tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Information Technology", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Informaatioteknologia", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Information Technology", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Tietotekniikka", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Mathematical Information Technology", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.date.updated", "value": "2017-05-10T11:28:38Z", "language": null, "element": "date", "qualifier": "updated", "schema": "dc"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_7a1f", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": "fi", "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "bachelorThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}]
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