Defacement: Дефейс внутренних систем
Other sub-techniques of Defacement (2)
| ID | Название |
|---|---|
| .001 | Дефейс внутренних систем |
| .002 | Дефейс внешних систем |
An adversary may deface systems internal to an organization in an attempt to intimidate or mislead users, thus discrediting the integrity of the systems. This may take the form of modifications to internal websites, or directly to user systems with the replacement of the desktop wallpaper.(Citation: Novetta Blockbuster) Disturbing or offensive images may be used as a part of Internal Defacement in order to cause user discomfort, or to pressure compliance with accompanying messages. Since internally defacing systems exposes an adversary's presence, it often takes place after other intrusion goals have been accomplished.(Citation: Novetta Blockbuster Destructive Malware)
Примеры процедур |
|
| Название | Описание |
|---|---|
| Gamaredon Group |
Gamaredon Group has left taunting images and messages on the victims' desktops as proof of system access.(Citation: CERT-EE Gamaredon January 2021) |
| Diavol |
After encryption, Diavol will capture the desktop background window, set the background color to black, and change the desktop wallpaper to a newly created bitmap image with the text “All your files are encrypted! For more information see “README-FOR-DECRYPT.txt".(Citation: Fortinet Diavol July 2021) |
| Meteor |
Meteor can change both the desktop wallpaper and the lock screen image to a custom image.(Citation: Check Point Meteor Aug 2021) |
| Lazarus Group |
Lazarus Group replaced the background wallpaper of systems with a threatening image after rendering the system unbootable with a Disk Structure Wipe.(Citation: Novetta Blockbuster Destructive Malware) |
Контрмеры |
|
| Контрмера | Описание |
|---|---|
| Defacement Mitigation |
Implementing best practices for websites such as defending against Exploit Public-Facing Application (Citation: OWASP Top 10 2017). Consider implementing IT disaster recovery plans that contain procedures for taking regular data backups that can be used to restore organizational data. (Ready.gov IT DRP) Ensure backups are stored off system and is protected from common methods adversaries may use to gain access and destroy the backups to prevent recovery. |
| Data Backup |
Take and store data backups from end user systems and critical servers. Ensure backup and storage systems are hardened and kept separate from the corporate network to prevent compromise. |
Обнаружение
Monitor internal and websites for unplanned content changes. Monitor application logs for abnormal behavior that may indicate attempted or successful exploitation. Use deep packet inspection to look for artifacts of common exploit traffic, such as SQL injection. Web Application Firewalls may detect improper inputs attempting exploitation.
Ссылки
- Novetta Threat Research Group. (2016, February 24). Operation Blockbuster: Unraveling the Long Thread of the Sony Attack. Retrieved February 25, 2016.
- Novetta Threat Research Group. (2016, February 24). Operation Blockbuster: Destructive Malware Report. Retrieved March 2, 2016.
- Check Point Research Team. (2021, August 14). Indra - Hackers Behind Recent Attacks on Iran. Retrieved February 17, 2022.
- Ready.gov. (n.d.). IT Disaster Recovery Plan. Retrieved March 15, 2019.
- Neeamni, D., Rubinfeld, A.. (2021, July 1). Diavol - A New Ransomware Used By Wizard Spider?. Retrieved November 12, 2021.
- CERT-EE. (2021, January 27). Gamaredon Infection: From Dropper to Entry. Retrieved February 17, 2022.
Связанные риски
Каталоги
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