T1560.002
Archive Collected Data: Archive via Library
Description from ATT&CK
An adversary may compress or encrypt data that is collected prior to exfiltration using 3rd party libraries. Many libraries exist that can archive data, including Python rarfile (Citation: PyPI RAR), libzip (Citation: libzip), and zlib (Citation: Zlib Github). Most libraries include functionality to encrypt and/or compress data.
Some archival libraries are preinstalled on systems, such as bzip2 on macOS and Linux, and zip on Windows. Note that the libraries are different from the utilities. The libraries can be linked against when compiling, while the utilities require spawning a subshell, or a similar execution mechanism.
Atomic Tests
Atomic Test #1 - Compressing data using GZip in Python (Linux)
Uses GZip from Python to compress files
Supported Platforms: linux
auto_generated_guid: 391f5298-b12d-4636-8482-35d9c17d53a8
Inputs:
| Name | Description | Type | Default Value |
|---|---|---|---|
| path_to_input_file | Path to the file that you want to compress | path | /etc/passwd |
| path_to_output_file | Path of the file that you want your .gz file to be | path | /tmp/passwd.gz |
Attack Commands: Run with bash!
1
2
$which_python -c "import gzip;input_file=open('#{path_to_input_file}', 'rb');content=input_file.read();input_file.close();output_file=gzip.GzipFile('#{path_to_output_file}','wb',compresslevel=6);output_file.write(content);output_file.close();"
Cleanup Commands:
1
2
rm #{path_to_output_file}
Dependencies: Run with bash!
Description: Requires Python
Check Prereq Commands:
1
2
which_python=`which python`; $which_python -V
Get Prereq Commands:
1
Atomic Test #2 - Compressing data using bz2 in Python (Linux)
Uses bz2 from Python to compress files
Supported Platforms: linux
auto_generated_guid: c75612b2-9de0-4d7c-879c-10d7b077072d
Inputs:
| Name | Description | Type | Default Value |
|---|---|---|---|
| path_to_input_file | Path to the file that you want to compress | path | /etc/passwd |
| path_to_output_file | Path of the file that you want your .bz2 file to be | path | /tmp/passwd.bz2 |
Attack Commands: Run with bash!
1
2
$which_python -c "import bz2;input_file=open('#{path_to_input_file}','rb');content=input_file.read();input_file.close();bz2content=bz2.compress(content,compresslevel=9);output_file=open('#{path_to_output_file}','w+');output_file.write(str(bz2content));output_file.close();"
Cleanup Commands:
1
2
rm #{path_to_output_file}
Dependencies: Run with bash!
Description: Requires Python
Check Prereq Commands:
1
2
which_python=`which python`; $which_python -V
Get Prereq Commands:
1
Atomic Test #3 - Compressing data using zipfile in Python (Linux)
Uses zipfile from Python to compress files
Supported Platforms: linux
auto_generated_guid: 001a042b-859f-44d9-bf81-fd1c4e2200b0
Inputs:
| Name | Description | Type | Default Value |
|---|---|---|---|
| path_to_input_file | Path to the file that you want to compress | path | /etc/passwd |
| path_to_output_file | Path of the file that you want your .zip file to be | path | /tmp/passwd.zip |
Attack Commands: Run with bash!
1
2
$which_python -c "from zipfile import ZipFile; ZipFile('#{path_to_output_file}', mode='w').write('#{path_to_input_file}')"
Cleanup Commands:
1
2
rm #{path_to_output_file}
Dependencies: Run with bash!
Description: Requires Python
Check Prereq Commands:
1
2
which_python=`which python`; $which_python -V
Get Prereq Commands:
1
Atomic Test #4 - Compressing data using tarfile in Python (Linux)
Uses tarfile from Python to compress files
Supported Platforms: linux
auto_generated_guid: e86f1b4b-fcc1-4a2a-ae10-b49da01458db
Inputs:
| Name | Description | Type | Default Value |
|---|---|---|---|
| path_to_input_file | Path to the file that you want to compress | path | /etc/passwd |
| path_to_output_file | Path of the file that you want your .tar.gz file to be | path | /tmp/passwd.tar.gz |
Attack Commands: Run with bash!
1
2
$which_python -c "from zipfile import ZipFile; ZipFile('#{path_to_output_file}', mode='w').write('#{path_to_input_file}')"
Cleanup Commands:
1
2
rm #{path_to_output_file}
Dependencies: Run with bash!
Description: Requires Python
Check Prereq Commands:
1
2
which_python=`which python`; $which_python -V
Get Prereq Commands:
1