S0441 PowerShower
PowerShower is a PowerShell backdoor used by Inception for initial reconnaissance and to download and execute second stage payloads.12
| Item | Value |
|---|---|
| ID | S0441 |
| Associated Names | |
| Type | MALWARE |
| Version | 1.0 |
| Created | 08 May 2020 |
| Last Modified | 20 May 2020 |
| Navigation Layer | View In ATT&CK® Navigator |
Techniques Used
| Domain | ID | Name | Use |
|---|---|---|---|
| enterprise | T1071 | Application Layer Protocol | - |
| enterprise | T1071.001 | Web Protocols | PowerShower has sent HTTP GET and POST requests to C2 servers to send information and receive instructions.1 |
| enterprise | T1560 | Archive Collected Data | - |
| enterprise | T1560.001 | Archive via Utility | PowerShower has used 7Zip to compress .txt, .pdf, .xls or .doc files prior to exfiltration.2 |
| enterprise | T1547 | Boot or Logon Autostart Execution | - |
| enterprise | T1547.001 | Registry Run Keys / Startup Folder | PowerShower sets up persistence with a Registry run key.1 |
| enterprise | T1059 | Command and Scripting Interpreter | - |
| enterprise | T1059.001 | PowerShell | PowerShower is a backdoor written in PowerShell.1 |
| enterprise | T1059.005 | Visual Basic | PowerShower has the ability to save and execute VBScript.1 |
| enterprise | T1132 | Data Encoding | - |
| enterprise | T1132.001 | Standard Encoding | PowerShower has the ability to encode C2 communications with base64 encoding.12 |
| enterprise | T1041 | Exfiltration Over C2 Channel | PowerShower has used a PowerShell document stealer module to pack and exfiltrate .txt, .pdf, .xls or .doc files smaller than 5MB that were modified during the past two days.2 |
| enterprise | T1564 | Hide Artifacts | - |
| enterprise | T1564.003 | Hidden Window | PowerShower has added a registry key so future powershell.exe instances are spawned with coordinates for a window position off-screen by default.1 |
| enterprise | T1070 | Indicator Removal | - |
| enterprise | T1070.004 | File Deletion | PowerShower has the ability to remove all files created during the dropper process.1 |
| enterprise | T1112 | Modify Registry | PowerShower has added a registry key so future powershell.exe instances are spawned off-screen by default, and has removed all registry entries that are left behind during the dropper process.1 |
| enterprise | T1057 | Process Discovery | PowerShower has the ability to deploy a reconnaissance module to retrieve a list of the active processes.2 |
| enterprise | T1082 | System Information Discovery | PowerShower has collected system information on the infected host.1 |
| enterprise | T1016 | System Network Configuration Discovery | PowerShower has the ability to identify the current Windows domain of the infected host.2 |
| enterprise | T1033 | System Owner/User Discovery | PowerShower has the ability to identify the current user on the infected host.2 |
Groups That Use This Software
| ID | Name | References |
|---|---|---|
| G0100 | Inception | 1 |