Hack.lu edition 2012 A forensic analysis of Android Malware

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$\H1B%-12345X@PJL JOB “HackingPrinters”$

ExperimentsDescriptionRetrieve in the market all certificates who signed a given numberof applications on a daily basisGet applications signed by each certificates on those daysGet the proportion of malicious apps in this setParametersWe chose to take 2
ResultsResultsWe isolated 6,186 applications on over 52,000 appsIn this subset 1,162 (i.e. 18.78%) are considered as maliciousaccording to Dr. WebSome stats on this subset678 cert.6,186 applications -> avg=9.12 apps/cert678 certs. have signed 15,914 distinct apps in Google play678 certs. have signed 29,881 in the whole datasetK. Allix, Q. Jerome (SnT) Hack.lu Hack.lu 2012-24-10 24 / 33
Page 1 and 2: Hack.lu edition 2012A forensic anal
Page 3 and 4: The Starting PointA dataset of Andr
Page 5 and 6: Crawling for apps. . . IIMarkets wa
Page 7 and 8: The Metadata Approach IAndroid Appl
Page 9 and 10: Timestamps160Total number of appsNu
Page 11 and 12: Timestamps: Fun Facts IIMalware Aut
Page 13 and 14: Distribution over hoursPercent87654
Page 15 and 16: InterludeThe Question. . .We collec
Page 17 and 18: InterludeThe Question. . .We collec
Page 19 and 20: But then. . . What are those certif
Page 21 and 22: Who cares anyway?Developers don’t
Page 23 and 24: Further experimentsQuestionIs it po
Page 25: Graph 2NoteIf there is still malwar
Page 29 and 30: QuestionWe have what we are looking
Page 31 and 32: The best android programmer ever se
Page 33 and 34: The mystery of leaked certificateWa
Page 35 and 36: Open questionsWhy a ’normal’ de

Hack.lu edition 2012 A forensic analysis of Android Malware

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