Search Evasion Techniques
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Hide Artifacts: NTFS File Attributes Defense Evasion [Mitre]
Adversaries may use NTFS file attributes to hide their malicious data in order to evade detection. Every New Technology File System (NTFS) formatted partition contains a Master File Table (MFT) that maintains a record for every file/directory on the partition. Within MFT entries are file attributes, such as Extended Attributes (EA) and Data [known as Alternate Data Streams (ADSs) when …
Hide Artifacts: Hidden File System Defense Evasion [Mitre]
Adversaries may use a hidden file system to conceal malicious activity from users and security tools. File systems provide a structure to store and access data from physical storage. Typically, a user engages with a file system through applications that allow them to access files and directories, which are an abstraction from their physical location (ex: disk sector). Standard file …
NTFS Files Attributes Antivirus/EDR Evasion
Every New Technology File System (NTFS) formatted partition contains a Master File Table (MFT) that maintains a record for every file/directory on the partition. Within MFT entries are file attributes, such as Extended Attributes and Data known as Alternate Data Streams (ADSs) when more than one Data attribute is present], that can be used to store arbitrary data (and even …