Input Prompt
When programs are executed that need additional privileges than are present in the current user context, it is common for the operating system to prompt the user for proper credentials to authorize the elevated privileges for the task (ex: Bypass User Account Control). Adversaries may mimic this functionality to prompt users for credentials with a seemingly legitimate prompt for a number of reasons that mimic normal usage, such as a fake installer requiring additional access or a fake malware removal suite.(Citation: OSX Malware Exploits MacKeeper) This type of prompt can be used to collect credentials via various languages such as AppleScript(Citation: LogRhythm Do You Trust Oct 2014)(Citation: OSX Keydnap malware) and PowerShell(Citation: LogRhythm Do You Trust Oct 2014)(Citation: Enigma Phishing for Credentials Jan 2015).
Контрмеры |
|
| Контрмера | Описание |
|---|---|
| Input Prompt Mitigation |
This technique exploits users' tendencies to always supply credentials when prompted, which makes it very difficult to mitigate. Use user training as a way to bring awareness and raise suspicion for potentially malicious events (ex: Office documents prompting for credentials). |
| User Training |
Train users to be aware of access or manipulation attempts by an adversary to reduce the risk of successful spearphishing, social engineering, and other techniques that involve user interaction. |
Обнаружение
Monitor process execution for unusual programs as well as malicious instances of Scripting that could be used to prompt users for credentials. Inspect and scrutinize input prompts for indicators of illegitimacy, such as non-traditional banners, text, timing, and/or sources.
Ссылки
- Nelson, M. (2015, January 21). Phishing for Credentials: If you want it, just ask!. Retrieved December 17, 2018.
- Marc-Etienne M.Leveille. (2016, July 6). New OSX/Keydnap malware is hungry for credentials. Retrieved July 3, 2017.
- Foss, G. (2014, October 3). Do You Trust Your Computer?. Retrieved December 17, 2018.
- Sergei Shevchenko. (2015, June 4). New Mac OS Malware Exploits Mackeeper. Retrieved July 3, 2017.
Связанные риски
Каталоги
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