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          ATT&CK-CN V1.01 Last Update: 2019-11 [返回索引頁]

          譯者: 林妙倩(清華大學網絡研究院網絡空間安全實習生)、戴亦侖(賽寧網安) 原創翻譯作品,如果需要轉載請取得翻譯作者同意。

          數據來源:ATT&CK Matrices

          原文: https://attack.mitre.org/techniques/T1487

          術語表: /attack/glossary

          磁盤結構擦除

          攻擊者可能會損壞或擦除引導系統所需的硬盤驅動器上的磁盤數據結構;針對特定的關鍵系統以及網絡中的大量系統,以中斷對系統和網絡資源的可用性。

          攻擊者可能試圖通過覆蓋位于主引導記錄(MBR)或分區表等結構中的關鍵數據來使系統無法引導。磁盤結構中包含的數據可以包括用于加載操作系統或磁盤上文件系統分區位置的初始可執行代碼。如果不存在此信息,則計算機將無法在引導過程中加載操作系統,從而使計算機不可用。磁盤結構擦除可以單獨執行,也可以與磁盤內容擦除一起執行(如果磁盤的所有扇區都已擦除)。

          為了最大限度地提高對目標組織的影響,旨在破壞磁盤結構的惡意軟件可能具有蠕蟲般的功能,可以通過利用其他技術(例如有效帳戶,憑據轉儲和Windows管理員共享)在網絡中傳播。

          Disk Structure Wipe

          Adversaries may corrupt or wipe the disk data structures on hard drive necessary to boot systems; targeting specific critical systems as well as a large number of systems in a network to interrupt availability to system and network resources.

          Adversaries may attempt to render the system unable to boot by overwriting critical data located in structures such as the master boot record (MBR) or partition table.[1][2][3][4][5] The data contained in disk structures may include the initial executable code for loading an operating system or the location of the file system partitions on disk. If this information is not present, the computer will not be able to load an operating system during the boot process, leaving the computer unavailable. Disk Structure Wipe may be performed in isolation, or along with Disk Content Wipe if all sectors of a disk are wiped.

          To maximize impact on the target organization, malware designed for destroying disk structures may have worm-like features to propagate across a network by leveraging other techniques like Valid Accounts, Credential Dumping, and Windows Admin Shares.

          標簽

          ID編號: T1487

          策略: 影響

          平臺: Windows,macOS,Linux

          所需權限: administrator,root,SYSTEM

          數據源: 內核驅動程序,MBR

          影響類型: 可用性

          緩解措施

          減輕 描述
          數據備份 考慮實施IT災難恢復計劃,其中包含用于進行可用于還原組織數據的常規數據備份的過程。確保備份存儲在系統之外,并且免受攻擊者可能用來獲取訪問權限并破壞備份以防止恢復的常見方法的攻擊。
          Mitigation Description
          Data Backup Consider implementing IT disaster recovery plans that contain procedures for taking regular data backups that can be used to restore organizational data. Ensure backups are stored off system and is protected from common methods adversaries may use to gain access and destroy the backups to prevent recovery.

          檢測

          尋找嘗試讀取/寫入敏感位置(如主引導記錄和磁盤分區表)的嘗試。監視異常的內核驅動程序安裝活動。

          Look for attempts to read/write to sensitive locations like the master boot record and the disk partition table. Monitor for unusual kernel driver installation activity.

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