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基于对比权限模式的安卓恶意软件检测方法(英文).docx

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基于对比权限模式的安卓恶意软件检测方法(英文) Introduction Astheuseofsmartphonesandmobiledeviceshasincreased,sohastheprevalenceofAndroidmalware.Androidmalwarecancauseseriousdamagetoyourdeviceandpersonalinformation.Acommontechniqueusedbymalwareistoabusetherelevantpermissionsgrantedtotheapplicationinordertoexecutemaliciousactions.Thesepermissions,oraccesstocertainsystemresources,arerequestedbyapplicationswhentheyareinstalledinordertoenablecertainfeaturesorfunctions. ThefocusofthispaperistoproposeamethodfordetectingAndroidmalwarebasedonthecomparisonofpermissionmodels.Theproposedmethodidentifiesdifferencesbetweenthepermissionmodelsofbenignandmaliciousapplications.Themethodisnotbasedonsignaturesbututilizesmachinelearningalgorithms. Background Androidisanopen-sourceoperatingsystemthatisusedinavarietyofdifferentdevices,includingsmartphones,tablets,smartwatches,andTVboxes.OneofthestrengthsofAndroidisitsabilitytofacilitatethird-partyapplications.However,thiscanalsoposeasignificantsecurityrisk.Third-partyapplicationscanhaveaccesstoamultitudeofhardwareandsoftwareresources,suchassensors,datastorage,andthedevice’snetworkconnection. Toprotectusersfrommaliciousapplications,Androidimplementsapermissionssystemthatrequiresanapplicationtoobtainpermissiontoaccesscertainresources.Permissionsprovidealayerofsecuritybylimitingwhatanapplicationcanaccess.However,ifauserapprovesapermissionrequestforamaliciousapplication,thentheapplicationcanaccesssensitiveinformationandcausedamagetothedeviceanddata. Methodology TheproposedmethodfordetectingAndroidmalwareisbasedonthecomparisonofpermissionmodels.Thepermissionmodelisarepresentationofthepermissionsthatanapplicationrequirestooperate.Theproposedmethodcomparesthepermissionmodelofasuspectapplicationtoapermissionmodelofaknownbenignapplicationforsimilarfunctionality.Iftherearedifferencesbetweenthetwo,thentheapplicationisclassifiedasmalicious.Thestepsofthemethodareasfollows: 1.Obtainpermissionmodelsofbenignapplications. 2.Obtainpermissionmodelsofmaliciousapplications. 3.Prep