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System Service Discovery

Description from ATT&CK

Adversaries may try to gather information about registered local system services. Adversaries may obtain information about services using tools as well as OS utility commands such as sc query, tasklist /svc, systemctl –type=service, and net start.

Adversaries may use the information from System Service Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.

Atomic Tests

Atomic Test #1 - System Service Discovery

Identify system services.

Upon successful execution, cmd.exe will execute service commands with expected result to stdout.

Supported Platforms: windows

auto_generated_guid: 89676ba1-b1f8-47ee-b940-2e1a113ebc71

Inputs:

None

Attack Commands: Run with command_prompt! Elevation Required (e.g. root or admin)

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tasklist.exe
sc query
sc query state= all

Atomic Test #2 - System Service Discovery - net.exe

Enumerates started system services using net.exe and writes them to a file. This technique has been used by multiple threat actors.

Upon successful execution, net.exe will run from cmd.exe that queries services. Expected output is to a txt file in in the temp directory called service-list.txt.

Supported Platforms: windows

auto_generated_guid: 5f864a3f-8ce9-45c0-812c-bdf7d8aeacc3

Inputs:

Name Description Type Default Value
output_file Path of file to hold net.exe output path %temp%\service-list.txt

Attack Commands: Run with command_prompt!

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net.exe start >> #{output_file}

Cleanup Commands:

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del /f /q /s #{output_file} >nul 2>&1

Atomic Test #3 - System Service Discovery - systemctl

Enumerates system service using systemctl

Supported Platforms: linux

auto_generated_guid: f4b26bce-4c2c-46c0-bcc5-fce062d38bef

Inputs:

None

Attack Commands: Run with bash!

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systemctl --type=service

source