Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{PF11EVB5-YQQ1-15I7-X5T4-RW8A54VC2472}] 'StubPath' = '<SYSTEM32>\install\server.exe Restart'
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'shell' = 'explorer.exe,%TEMP%\.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MyImgur' = '%TEMP%\.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKCU' = '<SYSTEM32>\install\server.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Policies' = '<SYSTEM32>\install\server.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = '<SYSTEM32>\install\server.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'HKLM' = '<SYSTEM32>\install\server.exe'
Malicious functions:
Creates and executes the following:
- '<SYSTEM32>\install\server.exe'
Executes the following:
- '<SYSTEM32>\cmd.exe' /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "MyImgur" /t REG_SZ /d "%TEMP%\.exe
- '<SYSTEM32>\reg.exe' add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d explorer.exe,"%TEMP%\.exe"
- '<SYSTEM32>\reg.exe' add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "MyImgur" /t REG_SZ /d "%TEMP%\.exe
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe'
- '<SYSTEM32>\cmd.exe' /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d explorer.exe,"%TEMP%\.exe"
- '%ProgramFiles%\Internet Explorer\IEXPLORE.EXE'
Injects code into
the following system processes:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe
Modifies file system:
Creates the following files:
- %TEMP%\%USERNAME%2.txt
- <SYSTEM32>\install\server.exe
- %TEMP%\%USERNAME%8
- %TEMP%\%USERNAME%7
- <Current directory>:{52006D00-5100-3100-3300-530051006B00}
- <Current directory>:{37002B00-7500-5500-3200-64004A007900}
- %TEMP%\.exe
- %ALLUSERSPROFILE%\Application Data\Isolated Storage\{52006D00-5100-3100-3300-530051006B00}
Deletes the following files:
- %TEMP%\%USERNAME%8
- %TEMP%\%USERNAME%7
- %TEMP%\%USERNAME%2.txt
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe
Network activity:
Connects to:
- 'ni####d.ddns.net':90
UDP:
- DNS ASK ni####d.ddns.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
