sigmaDRL-1.1from SigmaHQ/sigma
Special File Creation via Mknod Syscall
Detects usage of the `mknod` syscall to create special files (e.g., character or block devices). Attackers or malware might use `mknod` to create fake devices, interact with kernel interfaces, or establish covert channels in Linux systems. Monitoring the use of `mknod` is important because this syscall is rarely used by legitimate applications, and it can be abused to bypass file system restrictions or create backdoors.
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ATT&CK techniques
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