JP5511097B2 - 中央集中的にマルウェアを検出するための知的ハッシュ - Google Patents
中央集中的にマルウェアを検出するための知的ハッシュ Download PDFInfo
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- 238000011156 evaluation Methods 0.000 claims description 40
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- ZXQYGBMAQZUVMI-GCMPRSNUSA-N gamma-cyhalothrin Chemical compound CC1(C)[C@@H](\C=C(/Cl)C(F)(F)F)[C@H]1C(=O)O[C@H](C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 ZXQYGBMAQZUVMI-GCMPRSNUSA-N 0.000 description 1
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Description
42323|1-PECOMPACT-w|123423|32233|I=017253 B=297 M=31 X=1953 |A=1925 C=1154 D=51 G=2221 J=2246 L=789 M=3917 P=4180 R=44 S=125 T=780
V=5 PPPPP=171 LPPPM=111 PPPPG=110 MMMMM=91 PPPMP=88 PAAPA=73 APAAP=71
PPGCJ=69 JCJCJ=68 CJCJC=63 |4233|ntoskrnl.ex ntoskrnl.exe
V2.3.9.0.Demo.CracKed.By is4q.1ih|user32.dll drv\objfre\i386\driver.pdb objfre\i386\driver.sys kernel32.dll ntdll.dll ws2_32.dll advapi32.dl
等の英数字文字列として知的ハッシュを表す。
Claims (17)
- コンピュータのプロセッサによって実行される、エンティティの知的ハッシュを生成する方法であって、
前記プロセッサが、前記エンティティのプログラムコードの変換に基づいてメタ言語命令シーケンスを生成するステップと、
前記プロセッサが、前記メタ言語命令シーケンスの複数のサブシーケンスの複数の頻度値を特定するステップであって、ここで頻度値は、関連付けられたサブシーケンスが前記エンティティのプログラムコードの変換に基づいた前記メタ言語命令シーケンス内で発生する頻度を示す、ステップと、
前記プロセッサが、少なくとも部分的に前記複数の頻度値に基づいて、前記複数のサブシーケンスからサブシーケンスのセットを選択するステップと、
前記プロセッサが、前記エンティティの前記知的ハッシュを生成するステップであって、前記知的ハッシュは、前記選択されたサブシーケンスのセットを含む、ステップと、
前記プロセッサが、前記知的ハッシュを記憶装置に記憶するステップと
を含む、方法。 - 前記選択されるサブシーケンスの頻度値は、前記サブシーケンスが前記メタ言語命令シーケンス内で、選択されないサブシーケンスよりも高頻度で発生することを示す、請求項1に記載の方法。
- 前記エンティティの知的ハッシュを生成するステップは、
前記プロセッサが、前記エンティティの圧縮に使用された技法を識別するステップと、
前記プロセッサが、前記エンティティの圧縮に使用された前記技法を記述する情報を定義するステップと、
前記プロセッサが、少なくとも部分的に前記識別された技法を記述する情報に基づいて、前記エンティティの前記知的ハッシュを生成するステップと
をさらに含む、請求項1に記載の方法。 - 前記エンティティの知的ハッシュを生成するステップは、
前記プロセッサが、前記エンティティに基づいて固有の文字列のセットを識別するステップと、
前記プロセッサが、前記固有の文字列のセットを記述する情報を定義するステップと、
前記プロセッサが、少なくとも部分的に前記固有の文字列のセットを記述する情報に基づいて、前記エンティティの前記知的ハッシュを生成するステップと
をさらに含む、請求項1に記載の方法。 - 前記エンティティに基づいて前記固有の文字列のセットを識別するステップは、前記プロセッサが、前記エンティティとコンピュータシステムとの通信を示す文字列のセットを識別するステップを含む、請求項4に記載の方法。
- 前記エンティティに基づいて前記固有の文字列のセットを識別するステップは、前記プロセッサが、ネットワークを通して前記エンティティにより行われた通信を示す文字列のセットを識別するステップを含む、請求項4に記載の方法。
- 疑いのあるエンティティがマルウェアエンティティに該当するか否かを判断するコンピュータシステムであって、
実行可能なコードを記憶するコンピュータ可読記憶媒体と、
前記実行可能なコードを実行するためのプロセッサと
を備え、
前記実行可能なコードは、前記プロセッサに実行されることにより、
クライアントが直面した疑いのあるエンティティのプログラムコードの変換に基づいて生成されたメタ言語命令シーケンスのサブシーケンスのセットを含む知的ハッシュであって、生成された前記知的ハッシュを受信するように適合された報告モジュールであって、前記サブシーケンスのセットは、関連付けられたサブシーケンスが前記メタ言語命令シーケンス内で発生する頻度を示す複数の頻度値に少なくとも部分的に基づいて、前記メタ言語命令シーケンスの複数のサブシーケンスから選択される、報告モジュールと、
前記知的ハッシュに基づいて、前記疑いのあるエンティティが前記マルウェアエンティティに該当するか否かを判断するように構成された評価モジュールと
を当該コンピュータシステムに実現し、
前記報告モジュールは、前記疑いのあるエンティティハッシュが前記マルウェアエンティティに該当するか否かを前記クライアントに報告するようにさらに構成される
コンピュータシステム。 - 複数の知的ハッシュを記憶するように構成された知的ハッシュデータベースをさらに備え、
前記評価モジュールは、
前記疑いのあるエンティティに基づいて生成された前記知的ハッシュおよび前記複数の知的ハッシュに基づいて、複数の類似性スコアを生成し、ここで類似性スコアは、前記疑いのあるエンティティに基づいて生成された前記知的ハッシュと前記複数の知的ハッシュのうちの1つの知的ハッシュとの類似性を示し、そして
前記複数の類似性スコアのうちの最高類似性スコアに関連付けられた知的ハッシュに基づいて、前記疑いのあるエンティティハッシュが前記マルウェアエンティティに該当するか否かを判断する
ようにさらに構成される、請求項7に記載のコンピュータシステム。 - 前記実行可能なコードは、前記プロセッサに実行されることにより、
悪意のあるエンティティに基づいて、前記知的ハッシュを生成するように構成された知的ハッシュ生成モジュールを当該コンピュータシステムにさらに実現する、請求項7に記載のコンピュータシステム。 - 前記選択されるサブシーケンスの頻度値は、前記サブシーケンスが前記メタ言語命令シーケンス内で、選択されないサブシーケンスよりも高頻度で発生することを示す、請求項7に記載のコンピュータシステム。
- 前記知的ハッシュ生成モジュールは、
前記悪意のあるエンティティの圧縮に使用された技法を識別し、
前記悪意のあるエンティティの圧縮に使用された前記技法を記述する情報を定義し、そして
少なくとも部分的に前記識別された技法を記述する情報に基づいて、前記悪意のあるエンティティの前記知的ハッシュを生成する
ようにさらに構成される、請求項9に記載のコンピュータシステム。 - 前記知的ハッシュ生成モジュールは、
前記悪意のあるエンティティに基づいて固有の文字列のセットを識別し、
前記固有の文字列のセットを記述する情報を定義し、そして
少なくとも部分的に前記固有の文字列のセットを記述する情報に基づいて、前記悪意のあるエンティティの前記知的ハッシュを生成する
ようにさらに構成される、請求項9に記載のコンピュータシステム。 - プログラムコードをコンピュータに実行させて、疑いのあるエンティティがマルウェアエンティティに該当するか否かを判断させるコンピュータプログラムであって、前記プログラムコードは、
疑いのあるエンティティを識別するプログラムコードと、
前記疑いのあるエンティティのプログラムコードの変換に基づいてメタ言語命令シーケンスを生成するプログラムコードと、
前記メタ言語命令シーケンスの複数のサブシーケンスの複数の頻度値を特定するプログラムコードであって、ここで頻度値は、関連付けられたサブシーケンスが前記疑いのあるエンティティのプログラムコードの変換に基づいた前記メタ言語命令シーケンス内で発生する頻度を示す、プログラムコードと、
少なくとも部分的に前記複数の頻度値に基づいて、前記複数のサブシーケンスからサブシーケンスのセットを選択するプログラムコードと、
前記疑いのあるエンティティの知的ハッシュを生成するプログラムコードであって、前記知的ハッシュは、前記選択されたサブシーケンスのセットを含む、プログラムコードと、
前記知的ハッシュをサーバに送信して、前記疑いのあるエンティティがマルウェアエンティティに該当するか否かを評価するプログラムコードと、
前記疑いのあるエンティティが前記マルウェアエンティティに該当するか否かを特定した結果を前記サーバから受信するプログラムコードと
を含んでいる、コンピュータプログラム。 - 前記選択されるサブシーケンスの頻度値は、前記サブシーケンスが前記メタ言語命令シーケンス内で、選択されないサブシーケンスよりも高頻度で発生することを示す、請求項13に記載のコンピュータプログラム。
- 前記疑いのあるエンティティの知的ハッシュを生成するプログラムコードは、
前記疑いのあるエンティティの圧縮に使用されたアルゴリズムを識別するプログラムコードと、
少なくとも部分的に前記アルゴリズムを示す情報に基づいて、前記疑いのあるエンティティの前記知的ハッシュを生成するプログラムコードと
をさらに含む、請求項13に記載のコンピュータプログラム。 - 前記疑いのあるエンティティの知的ハッシュを生成するプログラムコードは、
前記疑いのあるエンティティに基づいて固有の文字列のセットを識別するプログラムコードと、
少なくとも部分的に前記固有の文字列のセットを示す情報に基づいて、前記疑いのあるエンティティの前記知的ハッシュを生成するプログラムコードと
をさらに含む、請求項13に記載のコンピュータプログラム。 - 前記疑いのあるエンティティが前記マルウェアエンティティに該当することを特定する結果を受信したことに応答して、クライアントを修復するプログラムコードをさらに含む、請求項13に記載のコンピュータプログラム。
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US12/128,490 | 2008-05-28 | ||
US12/128,490 US8732825B2 (en) | 2008-05-28 | 2008-05-28 | Intelligent hashes for centralized malware detection |
PCT/US2009/045319 WO2009154992A2 (en) | 2008-05-28 | 2009-05-27 | Intelligent hashes for centralized malware detection |
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JP2011523748A JP2011523748A (ja) | 2011-08-18 |
JP2011523748A5 JP2011523748A5 (ja) | 2012-07-12 |
JP5511097B2 true JP5511097B2 (ja) | 2014-06-04 |
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US (1) | US8732825B2 (ja) |
EP (1) | EP2310974B1 (ja) |
JP (1) | JP5511097B2 (ja) |
CN (1) | CN102047260B (ja) |
WO (1) | WO2009154992A2 (ja) |
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WO2009154992A2 (en) | 2009-12-23 |
WO2009154992A3 (en) | 2010-02-11 |
EP2310974A2 (en) | 2011-04-20 |
CN102047260B (zh) | 2015-08-05 |
CN102047260A (zh) | 2011-05-04 |
US8732825B2 (en) | 2014-05-20 |
JP2011523748A (ja) | 2011-08-18 |
EP2310974B1 (en) | 2017-03-01 |
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