{"created":"2025-01-19T01:13:07.035072+00:00","updated":"2025-01-19T17:36:17.504622+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00212098","sets":["1164:3925:10503:10641"]},"path":["10641"],"owner":"44499","recid":"212098","title":["Twitter で収集されたAndroidアプリのアクセシビリティサービスの利用率とAPI Levelの分析"],"pubdate":{"attribute_name":"公開日","attribute_value":"2021-07-12"},"_buckets":{"deposit":"d2f1ec66-f4e9-407a-9a77-2e0099e24c25"},"_deposit":{"id":"212098","pid":{"type":"depid","value":"212098","revision_id":0},"owners":[44499],"status":"published","created_by":44499},"item_title":"Twitter で収集されたAndroidアプリのアクセシビリティサービスの利用率とAPI Levelの分析","author_link":["540259","540260","540258","540257"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Twitter で収集されたAndroidアプリのアクセシビリティサービスの利用率とAPI Levelの分析"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"EMM/ICSS","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2021-07-12","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":" 岡山大学大学院自然科学研究科"},{"subitem_text_value":" 株式会社セキュアブレイン"},{"subitem_text_value":"株式会社セキュアブレイン"},{"subitem_text_value":"岡山大学学術研究院自然科学学域 "}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/212098/files/IPSJ-CSEC21094033.pdf","label":"IPSJ-CSEC21094033.pdf"},"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-CSEC21094033.pdf","filesize":[{"value":"3.1 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"0","billingrole":"30"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_login","version_id":"5439821c-434f-4f86-bfdf-5cdc66f0897d","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2021 by the Institute of Electronics, Information and Communication Engineers This SIG report is only available to those in membership of the SIG."}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"市岡, 秀一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"三村, 隆夫"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"中嶋, 淳"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山内, 利宏"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11235941","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8655","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"2017 年以降，アクセシビリティサービスを利用した Android の悪性アプリが報告されている．アクセシビリティサービスを悪用するアプリとして，2017 年末に発見された Skygofree や 2019 年に発見された Gustuff が報告されている．そこで，2018 年に Twitter で共有され，Google Play 以外で配布された Android アプリのアクセシビリティサービスの利用率の分析結果を報告した．しかし，この分析では，アクセシビリティサービスを利用するか否かの分析方法やアプリが悪性か良性かの判別方法に課題があった．そこで，本稿では，Android アプリについて，時間経過による VirusTotal の結果の変化を調査した結果を述べる．また，Android アプリからパーミッションを抽出する方法について，複数の手法を比較した結果を述べる．さらに，これらの課題に対処した分析方法を用いて，アクセシビリティサービスの利用率の分析，およびアプリに設定された API Level を分析した結果を述べる．この分析結果から，アクセシビリティサービスを利用する悪性アプリの危険性が大きいことを示す．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告コンピュータセキュリティ（CSEC）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2021-07-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"33","bibliographicVolumeNumber":"2021-CSEC-94"}]},"relation_version_is_last":true,"weko_creator_id":"44499"},"id":212098,"links":{}}