JP2017538376A - オフライン・ネットワーク・トラフィックに基づいてカバート・チャネルのネットワーク侵入を検出するためのシステムおよび方法 - Google Patents
オフライン・ネットワーク・トラフィックに基づいてカバート・チャネルのネットワーク侵入を検出するためのシステムおよび方法 Download PDFInfo
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- G06F21/55—Detecting local intrusion or implementing counter-measures
- G06F21/556—Detecting local intrusion or implementing counter-measures involving covert channels, i.e. data leakage between processes
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Abstract
Description
Claims (18)
- オフライン・ネットワーク・トラフィックを受信するように構成された1つまたは複数のサーバであって、前記オフライン・ネットワーク・トラフィックが、対応する複数のカバート・チャネルの痕跡に関連する複数のカバート・チャネルの存在を示すことのできる既定のフォーマットを有し、各カバート・チャネルが、標準プロトコルから逸脱することによってメッセージを伝達して、検出を回避するツールを含む、1つまたは複数のサーバと、
前記オフライン・ネットワーク・トラフィックを解析するように構成された複数のカバート・チャネル・プロセッサであって、1つまたは複数のカバート・チャネルの痕跡に基づいて、前記オフライン・ネットワーク・トラフィックが、前記標準プロトコルから逸脱しているかどうか判定することを前記解析が含む、複数のカバート・チャネル・プロセッサと
を含む、ネットワーク侵入検出のためのシステム。 - 前記オフライン・ネットワーク・トラフィックを解析してマルウェアを検出するように構成された複数のマルウェア・プロセッサをさらに含み、マルウェアが、逸脱することなく前記標準プロトコルを使用する、請求項1に記載のシステム。
- 前記オフライン・ネットワーク・トラフィックを解析してステガノグラフィを検出するように構成された複数のステガノグラフィ・プロセッサをさらに含む、請求項1に記載のシステム。
- 前記オフライン・ネットワーク・トラフィックを解析して潜在的に不要なプログラム(PUP)を検出するように構成された複数のPUPプロセッサをさらに含む、請求項1に記載のシステム。
- 前記オフライン・ネットワーク・データ・トラフィックが、複数の標準層を有する少なくとも1つの標準プロトコル・スタックを含む、請求項1に記載のシステム。
- 前記カバート・チャネルが、前記標準プロトコル・スタックの少なくとも1つの標準層で利用される、請求項5に記載のシステム。
- 前記少なくとも1つの標準層が、HTTPまたはTCP/IPのうちの1つを含む、請求項6に記載のシステム。
- 前記オフライン・ネットワーク・トラフィックが、第1のレベルおよび第2のレベルを含む2つのレベルで解析され、
前記第1のレベルの解析において、カバート・チャネルの痕跡に基づいて逸脱が検出され、
前記第2のレベルでは、解析が、標準での暗号解読プロセス、キーイン・プロセス、管理検出プロセス、ヘッダ・チェック・プロセス、またはフィールド・チェック・プロセスのうちの少なくとも1つを含む、請求項1に記載のシステム。 - ネットワーク・データ・トラフィックの前記既定のフォーマットがPCAPファイルである、請求項1に記載のシステム。
- オフライン・ネットワーク・トラフィックを受信するステップであって、前記オフライン・ネットワーク・トラフィックが、対応する複数のカバート・チャネルの痕跡に関連する複数のカバート・チャネルの存在を示すことのできる既定のフォーマットを有し、各カバート・チャネルが、標準プロトコルから逸脱することによってメッセージを伝達して、検出を回避するツールを含むステップと、
1つまたは複数のカバート・チャネルの痕跡に基づいて、前記オフライン・ネットワーク・トラフィックが、前記標準プロトコルから逸脱しているかどうか判定するステップと
を含む、ネットワーク侵入検出のための方法。 - 前記オフライン・ネットワーク・トラフィックを解析してマルウェアを検出するステップをさらに含み、マルウェアが、逸脱することなく前記標準プロトコルを使用する、請求項10に記載の方法。
- 前記オフライン・ネットワーク・トラフィックを解析してステガノグラフィを検出するステップをさらに含む、請求項10に記載の方法。
- 前記オフライン・ネットワーク・トラフィックを解析してPUPを検出するステップをさらに含む、請求項10に記載の方法。
- 前記オフライン・ネットワーク・データ・トラフィックが、複数の標準層を有する少なくとも1つの標準プロトコル・スタックを含む、請求項10に記載の方法。
- 前記カバート・チャネルが、前記標準プロトコル・スタックの少なくとも1つの標準層で利用される、請求項14に記載の方法。
- 前記少なくとも1つの標準層が、HTTPまたはTCP/IPのうちの1つを含む、請求項15に記載の方法。
- 前記オフライン・ネットワーク・トラフィックが、第1のレベルおよび第2のレベルを含む2つのレベルで解析され、前記第1のレベルの解析において、カバート・チャネルの痕跡に基づいて逸脱が検出され、前記第2のレベルでは、解析が、標準での暗号解読プロセス、キーイン・プロセス、管理検出プロセス、ヘッダ・チェック・プロセス、またはフィールド・チェック・プロセスのうちの少なくとも1つを含む、請求項10に記載の方法。
- ネットワーク・データ・トラフィックの前記既定のフォーマットがPCAPファイルである、請求項10に記載の方法。
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US9832213B2 (en) | 2017-11-28 |
CA2966408A1 (en) | 2016-05-06 |
EP3213207A1 (en) | 2017-09-06 |
JP6527590B2 (ja) | 2019-06-05 |
WO2016069119A1 (en) | 2016-05-06 |
CA2966408C (en) | 2019-11-05 |
EP3213207A4 (en) | 2018-04-25 |
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