Xbash
Techniques Used |
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Domain | ID | Name | Use | |
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Enterprise | T1071 | .001 | Application Layer Protocol: Web Protocols |
Xbash uses HTTP for C2 communications.(Citation: Unit42 Xbash Sept 2018) |
Enterprise | T1547 | .001 | Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder |
Xbash can create a Startup item for persistence if it determines it is on a Windows system.(Citation: Unit42 Xbash Sept 2018) |
Enterprise | T1110 | .001 | Brute Force: Password Guessing |
Xbash can obtain a list of weak passwords from the C2 server to use for brute forcing as well as attempt to brute force services with open ports.(Citation: Unit42 Xbash Sept 2018)(Citation: Trend Micro Xbash Sept 2018) |
Enterprise | T1059 | .001 | Command and Scripting Interpreter: PowerShell |
Xbash can use scripts to invoke PowerShell to download a malicious PE executable or PE DLL for execution.(Citation: Unit42 Xbash Sept 2018) |
.005 | Command and Scripting Interpreter: Visual Basic |
Xbash can execute malicious VBScript payloads on the victim’s machine.(Citation: Unit42 Xbash Sept 2018) |
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.007 | Command and Scripting Interpreter: JavaScript |
Xbash can execute malicious JavaScript payloads on the victim’s machine.(Citation: Unit42 Xbash Sept 2018) |
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Enterprise | T1053 | .003 | Scheduled Task/Job: Cron |
Xbash can create a cronjob for persistence if it determines it is on a Linux system.(Citation: Unit42 Xbash Sept 2018) |
Enterprise | T1218 | .005 | System Binary Proxy Execution: Mshta |
Xbash can use mshta for executing scripts.(Citation: Unit42 Xbash Sept 2018) |
.010 | System Binary Proxy Execution: Regsvr32 |
Xbash can use regsvr32 for executing scripts.(Citation: Unit42 Xbash Sept 2018) |
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Enterprise | T1102 | .001 | Web Service: Dead Drop Resolver |
Xbash can obtain a webpage hosted on Pastebin to update its C2 domain list.(Citation: Unit42 Xbash Sept 2018) |
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