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    您的位置:首頁 > 萬方期刊網 > 論文分類> 計算機病毒檢測技術研究

    計算機病毒檢測技術研究

    來源:萬方期刊網  時間:2018-04-09 14:59:25  點擊:

      1計算機反病毒技術概述

      1.1啟發式代碼掃描技術形式的計算機反病毒技術

      啟發式代碼掃描技術是計算機反病毒技術中最主要的技術之一。通常情況下對啟發式代碼掃描技術的運用都是由專業人員進行的,在實際工作中,病毒分析人員利用啟發式代碼掃描技術使計算機病毒防治工作更加智能化,該項技術還運用了統計啟發知識,兩者的相互結合有助于高效的實現對未知病毒的檢測,另外啟發式代碼掃描技術對于病毒的判斷相對比較準確。但是啟發式代碼掃描技術也存在著不足之處,那就是具有較高的誤報率,影響病毒檢測的正確性。

      1.2行為監測技術形式的計算機反病毒技術

      行為監測技術是計算機反病毒技術之一,而且行為監測技術是一種主動性質的防御手段,在計算機程序運行中主要對其行為進行判斷的技術。如果計算機程序運行中出現了可疑或者是比較特殊的行為,這時利用行為監測技術就可以及時的報警并采取有效的處理,還可以對不同類型的未知病毒進行檢測和防御。但是行為監測技術也存在局限性,它的缺點是不能夠有效識別病毒的名稱。

      1.3沙盒技術形式的計算機反病毒技術

      沙盒技術是一種較為先進的計算機反病毒技術。沙盒技術主要是運用虛擬技術和策略限制,來實現對計算機病毒的檢測。沙盒技術的主要功能是對計算機病毒進行隔離,相對比殺毒軟件的殺毒功能沙盒技術并不具備,這也是其主要的不足之處,但是沙盒技術能夠有效的保護計算機系統。

      2計算機病毒檢測技術的研究及病毒檢

      測方案的實現針對計算機出現的病毒進行有效分析,研究出合適的計算機病毒檢測技術,并做出有效的病毒檢測方案,將有效實現對計算機網絡安全的保護,推動計算機產業的發展。

      2.1行為基礎下的病毒檢測技術

      計算機系統的運行主要是通過編寫相應的代碼來完成的,而隨著編寫技術的發展,計算機病毒的編寫也更加的隱蔽和復雜,加上變形技術的發展,使得計算機病毒在較短的時間內,逐漸變種成多種模式,而且這些變種的計算機病毒在大小、類型、數量等方面都有著不同之處,它們的相同之處在于病毒的傳播速度極快,加大了對計算機病毒的檢測工作的難度。因此,相關的計算機病毒檢測人員開發了新的技術即行為基礎下的計算機病毒檢測技術。行為基礎下的計算機病毒檢測技術能夠實現高效的處理那些復雜、大量的計算機病毒程序問題,從而解決了固定性的病毒。另外它還可以不需要收集完整的信息數據,完成對變異病毒、已知病毒和未知病毒的檢測和處理。

      2.2全面病毒檢測技術

      全面病毒檢測技術是一種全面、完整的病毒檢測技術,主要是針對計算機中的已知和未知的病毒進行的檢測。全面病毒檢測技術可以實現對計算機存在的病毒進行有效修復。具體的病毒防治方法是,首先,對計算機內的文件和內容進行全面的掌握和了解,尋找已經被計算機病毒更改的文件內容。其次,利用原有的文件信息覆蓋被病毒更改的文件內容,修復被計算機病毒修改的文件內容,達到對計算機病毒徹底清除的目的。

      2.3數據加密形式病毒檢測技術

      運用加密手段實現對計算機數據的保護是計算機病毒防治中普遍使用的。數據加密保護主要是對計算機安全的保護和計算機代碼被破譯的保護,當數據被計算機病毒侵入的時候,使用加密手段可以阻止這一行為,實現對數據的保護;而且在數據傳輸中使用加密手段也可以防止信息被竊聽的等問題。但是對數據進行加密需要建立相應的管理方案或者密匙交換,目的是為了適應資源有限性的特點,保證信息傳輸部署的合理,保障計算機網絡的安全。

      2.4啟發式掃描病毒檢測技術

      啟發式掃描病毒檢測技術是通過殺毒軟件的記憶功能,根據殺毒軟件已有的計算機病毒類型,對計算機進行病毒檢測。當計算機內出現和殺毒軟件內存儲的計算機病毒類型相似的情況,啟發式掃描病毒檢測技術就會及時的發出警告,來提醒使用者盡快的對其進行有效處理。而啟發式掃描病毒檢測技術對與未知的計算機病毒進行檢測時,對計算機有一定的要求,要保證其在正常的運行時才能進行檢測工作。具體的工作程序是,掃描計算機內的所有程序,對計算機內的病毒進行查處和分析,并提醒使用者及時處理計算機內的病毒。

      3結論

      在計算機發展過程中,計算機病毒不斷的對系統安全進行嚴重干擾,在這種嚴峻形勢下,只有加強對計算機病毒的檢測技術的研究和實現,建立計算機反病毒技術才能有效營造健康的計算機網絡環境,為計算機系統的正常運行提供保障,促進計算技術的持久發展。

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