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# TrapsによるAdobe Flash Playerゼロデイ攻撃に対する防御

![Clock Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-clock.svg) 1未満 分で読めます

* ![Profile Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-profile-grey.svg)  
  著者:
  
  * [Gal De Leon](https://unit42.paloaltonetworks.com/ja/author/gal-de-leon/)
  * [Dor Hadad](https://unit42.paloaltonetworks.com/ja/author/dor-hadad/)
  * [Maor Dokhanian](https://unit42.paloaltonetworks.com/ja/author/maor-dokhanian/)

* ![Published Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-calendar-grey.svg)  
  公開日:2018年2月9日

* ![Tags Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-category.svg)  
  カテゴリー
  
  * [主なサイバー脅威](https://unit42.paloaltonetworks.com/ja/category/top-cyberthreats-ja/)
  * [サイバー犯罪](https://unit42.paloaltonetworks.com/ja/category/cybercrime-ja/)
  * [マルウェア](https://unit42.paloaltonetworks.com/ja/category/malware-ja/)
  * [脅威リサーチ](https://unit42.paloaltonetworks.com/ja/category/threat-research-ja/)

* ![Tags Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-tags-grey.svg)  
  タグ:
  
  * [Hancitor](https://unit42.paloaltonetworks.com/ja/tag/hancitor-ja/)

* [![Download Icon](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-download.svg)](https://unit42.paloaltonetworks.com/ja/unit42-traps-prevents-adobe-flash-player-zero-day/?pdf=download&lg=ja&_wpnonce=40dbae5d0f "Click here to download")

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## 概要

1月31日、韓国CERTによって、実際に侵害が確認されている、新しいAdobe Flash Playerのゼロデイ脆弱性(CVE-2018-4878)に関するセキュリティ アドバイザリが[公開されました](https://www.krcert.or.kr/data/secNoticeView.do?bulletin_writing_sequence=26998)。Adobeは、この脆弱性に対処するためのパッチおよび[セキュリティ公報](https://helpx.adobe.com/security/products/flash-player/apsb18-03.html)を2月6日にリリースしました。この脆弱性は、[Adobe tvsdk](https://helpx.adobe.com/legal/product-descriptions/adobe-primetime-tvsdk-platform.html)内に存在するUse-After-Free (UAF)バグです。攻撃の最終的な目標は、[DogCall](https://www.fireeye.com/blog/threat-research/2018/02/attacks-leveraging-adobe-zero-day.html) (別名[ROKRAT](https://blog.talosintelligence.com/2017/04/introducing-rokrat.html))というマルウェアをダウンロードして実行することとみられており、DogCallは情報を盗むためのバックドアです。DogCallは、多くの場合、韓国で一般的に使用されているアプリケーションであるHangul Word Processor (HWP)の悪意のあるファイルを介して配信されます。

![](https://unit42.paloaltonetworks.com/wp-content/uploads//2020/02/word-image-313.png)

*図1 -- 悪意のあるサンプルで確認された攻撃フロー*

図1に悪意のあるサンプルで確認された攻撃フローを示しました。最初に悪意のあるXLSスプレッドシート ファイルが被害者によって開かれます。次に、そのドキュメントが、埋め込まれたAdobe Flashファイルを実行します。このファイルには、暗号化されたバイナリ データBLOBが含まれています。Adobe Flashファイルはリモート サーバに接続して、このバイナリBLOBの復号キーを要求します。バイナリBLOBは復号され、2つめのAdobe Flashファイルとして動的にロードされます。このAdobe Flashファイルが、CVE-2018-4878用のゼロデイ エクスプロイトを含むファイルです。エクスプロイトに成功すると、シェルコードが実行されて、悪意のあるペイロードを取得し、実行します。

## **Trapsがどのようにしてこの脅威に対して防御するか**

Palo Alto Networks Traps次世代エンドポイントセキュリティは、マルウェアおよびエクスプロイト防御の複数の手法を提供して、このような複雑な脅威から保護します。この脅威の場合、Trapsは、Trapsエクスプロイト防御機能を使用して、悪意のあるシェルコードがExcel.exeで実行されるのを防ぎます。また、機械学習を利用したTrapsローカル分析で、悪意のあるペイロードが実行されないようにします。

AutoFocusをご使用のお客様は、[DogCall](https://autofocus.paloaltonetworks.com/#/tag/Unit42.DogCall)タグで、この活動を追跡することができます。
トップに戻る

### タグ

* [Hancitor](https://unit42.paloaltonetworks.com/ja/tag/hancitor-ja/ "hancitor")  
  [Threat Research Center](https://unit42.paloaltonetworks.com/ja/ "Threat Research") [次ページ:セキュリティ意識の低いユーザーを狙い続ける、侵害されたサーバーと不正アカウントを利用したHancitorマルスパム攻撃](https://unit42.paloaltonetworks.com/ja/unit42-compromised-servers-fraud-accounts-recent-hancitor-attacks/ "セキュリティ意識の低いユーザーを狙い続ける、侵害されたサーバーと不正アカウントを利用したHancitorマルスパム攻撃")

### 目次

* 

### 関連記事

* [Wireshark によるパケット解析講座12: Hancitor感染トラフィックの調査](https://unit42.paloaltonetworks.com/ja/wireshark-tutorial-hancitor-followup-malware/ "article - table of contents")
* [HancitorによるCobalt Strikeとノイズの多いネットワークpingツールの使用](https://unit42.paloaltonetworks.com/ja/hancitor-infections-cobalt-strike/ "article - table of contents")

## 関連項目 リソース

![Pictorial representation of ChainDrop, a self-propagating npm worm. An artistic depiction of a digital workspace featuring an open laptop with a red virus on the screen.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/08/03_Malware_Category_1920x900-7-786x368.jpg)  
[![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)主なサイバー脅威](https://unit42.paloaltonetworks.com/ja/category/top-cyberthreats-ja/) 2026年8月6日 [#### ChainDropの脅威の概要:自己増殖型npmワームの内部](https://unit42.paloaltonetworks.com/ja/chaindrop-npm-worm-analysis/)

* [Blockchain](https://unit42.paloaltonetworks.com/ja/tag/blockchain-ja/ "blockchain")

* [ChainDrop](https://unit42.paloaltonetworks.com/ja/tag/chaindrop/ "ChainDrop")

* [Claude code](https://unit42.paloaltonetworks.com/ja/tag/claude-code/ "Claude code")  
  [今すぐ読む ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ja/chaindrop-npm-worm-analysis/ "ChainDropの脅威の概要:自己増殖型npmワームの内部")  
  ![Pictorial representation of the npm packages supply chain attack. Screen displaying code with a prominent alert symbol and the words 'VIRUS DETECTED' highlighted in red.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/04/05_Malware_Category_1920x900-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)主なサイバー脅威](https://unit42.paloaltonetworks.com/ja/category/top-cyberthreats-ja/) 2026年6月2日 [#### npmの脅威の状況: アタックサーフェスと緩和策(6月2日更新)](https://unit42.paloaltonetworks.com/ja/monitoring-npm-supply-chain-attacks/)

* [Credential Harvesting](https://unit42.paloaltonetworks.com/ja/tag/credential-harvesting-ja/ "Credential Harvesting")

* [GitHub](https://unit42.paloaltonetworks.com/ja/tag/github-ja/ "GitHub")

* [Npm packages](https://unit42.paloaltonetworks.com/ja/tag/npm-packages/ "npm packages")  
  [今すぐ読む ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ja/monitoring-npm-supply-chain-attacks/ "npmの脅威の状況: アタックサーフェスと緩和策(6月2日更新)")  
  ![Pictorial representation of Screening Serpens. An illustrated blue snake is highlighted by a red circle against a night sky. The constellation serpens.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/05/Serpens-Iran-A-1920x900-2-786x368.png)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/threat-actor-groups.svg)脅威アクター グループ](https://unit42.paloaltonetworks.com/ja/category/threat-actor-groups-ja/) 2026年5月22日 [#### イランAPT Screening Serpensによる2026年スパイ キャンペーンの追跡](https://unit42.paloaltonetworks.com/ja/tracking-iran-apt-screening-serpens/)

* [Advanced Persistent Threat](https://unit42.paloaltonetworks.com/ja/tag/advanced-persistent-threat-ja/ "Advanced Persistent Threat")

* [AppDomainManager](https://unit42.paloaltonetworks.com/ja/tag/appdomainmanager/ "AppDomainManager")

* [DLL Sideloading](https://unit42.paloaltonetworks.com/ja/tag/dll-sideloading-ja/ "DLL Sideloading")  
  [今すぐ読む ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ja/tracking-iran-apt-screening-serpens/ "イランAPT Screening Serpensによる2026年スパイ キャンペーンの追跡")  
  ![Pictorial representation of Iran cyber attacks. Close-up of a person wearing glasses, with computer code reflected in the lenses.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/03/12_Security-Technology_Category_1920x900-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)主なサイバー脅威](https://unit42.paloaltonetworks.com/ja/category/top-cyberthreats-ja/) 2026年4月17日 [#### 脅威情報: 2026年イランに関するサイバー リスクの激化(4月17日更新)](https://unit42.paloaltonetworks.com/ja/iranian-cyberattacks-2026/)

* [APK](https://unit42.paloaltonetworks.com/ja/tag/apk-ja/ "APK")

* [DDoS attacks](https://unit42.paloaltonetworks.com/ja/tag/ddos-attacks-ja/ "DDoS attacks")

* [GenAI](https://unit42.paloaltonetworks.com/ja/tag/genai-ja/ "GenAI")  
  [今すぐ読む ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ja/iranian-cyberattacks-2026/ "脅威情報: 2026年イランに関するサイバー リスクの激化(4月17日更新)")  
  ![Pictorial representation of the supply chain attack compromising Axios. A giant eye made of glowing binary code.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/04/02_Security-Technology_Category_1920x900-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)主なサイバー脅威](https://unit42.paloaltonetworks.com/ja/category/top-cyberthreats-ja/) 2026年4月1日 [#### 脅威概要:Axiosサプライ チェーン攻撃で広範に及ぶ影響](https://unit42.paloaltonetworks.com/ja/axios-supply-chain-attack/)

* [API attacks](https://unit42.paloaltonetworks.com/ja/tag/api-attacks-ja/ "API attacks")

* [JavaScript](https://unit42.paloaltonetworks.com/ja/tag/javascript-ja/ "JavaScript")

* [Powershell](https://unit42.paloaltonetworks.com/ja/tag/powershell-ja/ "Powershell")  
  [今すぐ読む ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ja/axios-supply-chain-attack/ "脅威概要:Axiosサプライ チェーン攻撃で広範に及ぶ影響")  
  ![Pictorial representation of TeamPCP. Glowing code on a screen where several word such as Crime, Hackers, and Security are highlighted in a contrasting color.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/03/03_Cybercrime_Category_1920x900-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)主なサイバー脅威](https://unit42.paloaltonetworks.com/ja/category/top-cyberthreats-ja/) 2026年3月31日 [#### プロテクターを武器として利用する:セキュリティ インフラにおけるTeamPCPの多段階サプライ チェーン攻撃](https://unit42.paloaltonetworks.com/ja/teampcp-supply-chain-attacks/)

* [CVE-2025-55182](https://unit42.paloaltonetworks.com/ja/tag/cve-2025-55182-ja/ "CVE-2025-55182")

* [GitHub](https://unit42.paloaltonetworks.com/ja/tag/github-ja/ "GitHub")

* [Infostealer](https://unit42.paloaltonetworks.com/ja/tag/infostealer-ja/ "Infostealer")  
  [今すぐ読む ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ja/teampcp-supply-chain-attacks/ "プロテクターを武器として利用する:セキュリティ インフラにおけるTeamPCPの多段階サプライ チェーン攻撃")  
  ![Pictorial representation of phishing campaign. A blurred image focusing on a person typing on a laptop with lines of code visible on the screen, illuminated in blue and red lights, suggestive of intense coding or cyber activities.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/03/06_Malware_Category_1920x900-3-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/06/icon-threat-research.svg)脅威リサーチ](https://unit42.paloaltonetworks.com/ja/category/threat-research-ja/) 2026年3月24日 [#### 脅威情報: パロアルトネットワークスの人材獲得チームになりすました採用スキーム](https://unit42.paloaltonetworks.com/ja/phishing-attackers-pose-as-panw-recruiters/)

* [Email scam](https://unit42.paloaltonetworks.com/ja/tag/email-scam/ "email scam")

* [Lure](https://unit42.paloaltonetworks.com/ja/tag/lure/ "lure")

* [Phishing](https://unit42.paloaltonetworks.com/ja/tag/phishing-ja/ "phishing")  
  [今すぐ読む ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ja/phishing-attackers-pose-as-panw-recruiters/ "脅威情報: パロアルトネットワークスの人材獲得チームになりすました採用スキーム")  
  ![Pictorial representation of Notepad++ supply chain compromise. A digital rendering of Earth from space, focusing on North and South America. The continents are illuminated in blue, with red lines and dots indicating data connections across various locations. Dark background highlights the vibrant network representation.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/02/11_Security-Technology_Category_1920x900-786x368.jpg)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/top-threats.svg)主なサイバー脅威](https://unit42.paloaltonetworks.com/ja/category/top-cyberthreats-ja/) 2026年2月11日 [#### 国家支援型の脅威アクターがNotepad++のサプライチェーンを悪用](https://unit42.paloaltonetworks.com/ja/notepad-infrastructure-compromise/)

* [Backdoor](https://unit42.paloaltonetworks.com/ja/tag/backdoor-ja/ "backdoor")

* [Cobalt Strike](https://unit42.paloaltonetworks.com/ja/tag/cobalt-strike-ja/ "Cobalt Strike")

* [DLL Sideloading](https://unit42.paloaltonetworks.com/ja/tag/dll-sideloading-ja/ "DLL Sideloading")  
  [今すぐ読む ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ja/notepad-infrastructure-compromise/ "国家支援型の脅威アクターがNotepad++のサプライチェーンを悪用")  
  ![Pictorial representation of Muddled Libra, aka Scattered Spider. A vibrant illustration of the Libra zodiac sign, featuring a stylized balance scale overlaid with a prominent Libra symbol. The background is a starry night sky with shades of purple and blue, suggesting a cosmic theme.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/02/03-1-Muddle-Libra-1920x900-1-786x368.png)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2024/07/threat-actor-groups.svg)脅威アクター グループ](https://unit42.paloaltonetworks.com/ja/category/threat-actor-groups-ja/) 2026年2月10日 [#### Muddled Libraのプレイブックを覗いてみよう](https://unit42.paloaltonetworks.com/ja/muddled-libra-ops-playbook/)

* [Muddled Libra](https://unit42.paloaltonetworks.com/ja/tag/muddled-libra-ja/ "Muddled Libra")

* [Powershell](https://unit42.paloaltonetworks.com/ja/tag/powershell-ja/ "Powershell")

* [Scattered Spider](https://unit42.paloaltonetworks.com/ja/tag/scattered-spider-ja/ "Scattered Spider")  
  [今すぐ読む ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ja/muddled-libra-ops-playbook/ "Muddled Libraのプレイブックを覗いてみよう")  
  ![Pictorial representation of threat groups from Russia. The silhouette of a bear and the Ursa constellation inside an orange abstract planet. Abstract, stylized cosmic setting with vibrant blue and purple shapes, representing space and distant planetary bodies.](https://unit42.paloaltonetworks.com/wp-content/uploads/2026/01/Ursa-Russia-B-1920x900-1-786x368.png)  
  [![category icon](https://unit42.paloaltonetworks.com/wp-content/uploads/2025/08/Insights-icon-white.svg)Insights](https://unit42.paloaltonetworks.com/ja/category/insights-ja/) 2026年1月29日 [#### 2026年冬季オリンピックに対するロシアのサイバー脅威を理解する](https://unit42.paloaltonetworks.com/ja/russian-cyberthreat-2026-winter-olympics/)

* [AI](https://unit42.paloaltonetworks.com/ja/tag/ai-ja/ "AI")

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  [今すぐ読む ![Right arrow](https://unit42.paloaltonetworks.com/wp-content/themes/unit42-v6/dist/images/icons/icon-right-arrow-withtail.svg)](https://unit42.paloaltonetworks.com/ja/russian-cyberthreat-2026-winter-olympics/ "2026年冬季オリンピックに対するロシアのサイバー脅威を理解する")

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