QUADAGENT
Techniques Used |
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Domain | ID | Name | Use | |
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Enterprise | T1071 | .001 | Application Layer Protocol: Web Protocols |
QUADAGENT uses HTTPS and HTTP for C2 communications.(Citation: Unit 42 QUADAGENT July 2018) |
.004 | Application Layer Protocol: DNS |
QUADAGENT uses DNS for C2 communications.(Citation: Unit 42 QUADAGENT July 2018) |
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Enterprise | T1059 | .001 | Command and Scripting Interpreter: PowerShell |
QUADAGENT uses PowerShell scripts for execution.(Citation: Unit 42 QUADAGENT July 2018) |
.003 | Command and Scripting Interpreter: Windows Command Shell |
QUADAGENT uses cmd.exe to execute scripts and commands on the victim’s machine.(Citation: Unit 42 QUADAGENT July 2018) |
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.005 | Command and Scripting Interpreter: Visual Basic |
QUADAGENT uses VBScripts.(Citation: Unit 42 QUADAGENT July 2018) |
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Enterprise | T1132 | .001 | Data Encoding: Standard Encoding |
QUADAGENT encodes C2 communications with base64.(Citation: Unit 42 QUADAGENT July 2018) |
Enterprise | T1070 | .004 | Indicator Removal: File Deletion |
QUADAGENT has a command to delete its Registry key and scheduled task.(Citation: Unit 42 QUADAGENT July 2018) |
Enterprise | T1036 | .005 | Masquerading: Match Legitimate Name or Location |
QUADAGENT used the PowerShell filenames |
Enterprise | T1027 | .010 | Obfuscated Files or Information: Command Obfuscation |
QUADAGENT was likely obfuscated using `Invoke-Obfuscation`.(Citation: Unit 42 QUADAGENT July 2018)(Citation: GitHub Invoke-Obfuscation) |
.011 | Obfuscated Files or Information: Fileless Storage |
QUADAGENT stores a session identifier unique to the compromised system as well as a pre-shared key used for encrypting and decrypting C2 communications within a Registry key (such as `HKCU\Office365DCOMCheck`) in the `HKCU` hive.(Citation: Unit 42 QUADAGENT July 2018) |
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Enterprise | T1053 | .005 | Scheduled Task/Job: Scheduled Task |
QUADAGENT creates a scheduled task to maintain persistence on the victim’s machine.(Citation: Unit 42 QUADAGENT July 2018) |
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