T1056.002 GUI Input Capture
Adversaries may mimic common operating system GUI components to prompt users for credentials with a seemingly legitimate 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.1 This type of prompt can be used to collect credentials via various languages such as AppleScript234 and PowerShell.254 On Linux systems adversaries may launch dialog boxes prompting users for credentials from malicious shell scripts or the command line (i.e. Unix Shell).4
Item | Value |
---|---|
ID | T1056.002 |
Sub-techniques | T1056.001, T1056.002, T1056.003, T1056.004 |
Tactics | TA0009, TA0006 |
Platforms | Linux, Windows, macOS |
Permissions required | User |
Version | 1.2 |
Created | 11 February 2020 |
Last Modified | 30 March 2023 |
Procedure Examples
ID | Name | Description |
---|---|---|
S0482 | Bundlore | Bundlore prompts the user for their credentials.9 |
S0274 | Calisto | Calisto presents an input prompt asking for the user’s login and password.11 |
S0281 | Dok | Dok prompts the user for credentials.7 |
G0085 | FIN4 | FIN4 has presented victims with spoofed Windows Authentication prompts to collect their credentials.1413 |
S0278 | iKitten | iKitten prompts the user for their credentials.7 |
S0276 | Keydnap | Keydnap prompts the users for credentials.12 |
S0455 | Metamorfo | Metamorfo has displayed fake forms on top of banking sites to intercept credentials from victims.8 |
S0279 | Proton | Proton prompts users for their credentials.7 |
S0692 | SILENTTRINITY | SILENTTRINITY‘s credphisher.py module can prompt a current user for their credentials.6 |
S0658 | XCSSET | XCSSET prompts the user to input credentials using a native macOS dialog box leveraging the system process /Applications/Safari.app/Contents/MacOS/SafariForWebKitDevelopment .10 |
Mitigations
ID | Mitigation | Description |
---|---|---|
M1017 | User Training | Use user training as a way to bring awareness and raise suspicion for potentially malicious events and dialog boxes (ex: Office documents prompting for credentials). |
Detection
ID | Data Source | Data Component |
---|---|---|
DS0017 | Command | Command Execution |
DS0009 | Process | Process Creation |
DS0012 | Script | Script Execution |
References
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Sergei Shevchenko. (2015, June 4). New Mac OS Malware Exploits Mackeeper. Retrieved July 3, 2017. ↩
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Foss, G. (2014, October 3). Do You Trust Your Computer?. Retrieved December 17, 2018. ↩↩
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Marc-Etienne M.Leveille. (2016, July 6). New OSX/Keydnap malware is hungry for credentials. Retrieved July 3, 2017. ↩
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Johann Rehberger. (2021, April 18). Spoofing credential dialogs on macOS Linux and Windows. Retrieved August 19, 2021. ↩↩↩
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Nelson, M. (2015, January 21). Phishing for Credentials: If you want it, just ask!. Retrieved December 17, 2018. ↩
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Salvati, M. (2019, August 6). SILENTTRINITY Modules. Retrieved March 24, 2022. ↩
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Patrick Wardle. (n.d.). Mac Malware of 2017. Retrieved September 21, 2018. ↩↩↩
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Sierra, E., Iglesias, G.. (2018, April 24). Metamorfo Campaigns Targeting Brazilian Users. Retrieved July 30, 2020. ↩
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Sushko, O. (2019, April 17). macOS Bundlore: Mac Virus Bypassing macOS Security Features. Retrieved June 30, 2020. ↩
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Mac Threat Response, Mobile Research Team. (2020, August 13). The XCSSET Malware: Inserts Malicious Code Into Xcode Projects, Performs UXSS Backdoor Planting in Safari, and Leverages Two Zero-day Exploits. Retrieved October 5, 2021. ↩
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Pantig, J. (2018, July 30). OSX.Calisto. Retrieved September 7, 2018. ↩
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Patrick Wardle. (2017, January 1). Mac Malware of 2016. Retrieved September 21, 2018. ↩
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Vengerik, B. & Dennesen, K.. (2014, December 5). Hacking the Street? FIN4 Likely Playing the Market. Retrieved January 15, 2019. ↩
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Vengerik, B. et al.. (2014, December 5). Hacking the Street? FIN4 Likely Playing the Market. Retrieved December 17, 2018. ↩