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MBCProject-mbc-markdown/execution/remote-commands.md
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2022-10-31 15:49:13 -04:00

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ID B0011
Objective(s) Execution
Related ATT&CK Techniques None
Version 2.0
Created 1 August 2019
Last Modified 31 October 2022

Remote Commands

Malware may provide an attacker with explicit commands. This behavior differs from the Remote Access (B0022) behavior under the Impact objective in that Impact: Remote Access is potentially much broader and may include full remote access.

Given an "execute" command, the attacker may choose to delete files or corrupt data, power-off the machine, or upload and execute other applications. The malware may also provide specific commands to the attacker (e.g., "delete file").

Commands provided by the malware can be captured with the methods defined below. For example, malware that enables an attacker to delete a file could be tagged with Execution:Remote Commands:Delete File.

It may be useful to capture remote commands along with related behaviors because the associated descriptions could provide details of how the malware implements the command. For example, Defense Evasion:File Deletion could be used to provide details and context to Execution:Remote Commands:Delete File.

Autonomous behaviors - those done by the malware without an active attacker - should not be captured with Execution:Remote Commands. For example, malware that automatically destroys data would be tagged with the Impact: Data Destruction (E1485) behavior.

Methods

Name ID Description
Delete File B0011.001
Download File B0011.002
Execute B0011.003
Shutdown B0011.004
Sleep B0011.005
Uninstall B0011.006
Upload File B0011.007

Malware Examples

Name Date Description
Ursnif 2016 Commands sent by a remote user can archive/upload files, capture screenshots, clear cookies, download execute other files, list running processes, reboot the affected system, steal certificates and cookies, update/download a configuration file, upload a log file which contains stolen information [1]
BlackEnergy 2007 infected bots receive commands from botmaster to load plugins associated with botmaster's goals [2]
TrickBot 2016 Receives various commands from c2 server. [3]

References

[1] https://www.trendmicro.com/vinfo/us/threat-encyclopedia/malware/BKDR_URSNIF.SM?_ga=2.129468940.1462021705.1559742358-1202584019.1549394279

[2] https://blog-assets.f-secure.com/wp-content/uploads/2019/10/15163408/BlackEnergy_Quedagh.pdf

[3] https://www.cybereason.com/blog/research/dropping-anchor-from-a-trickbot-infection-to-the-discovery-of-the-anchor-malware