Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<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'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKCU' = '<SYSTEM32>\install\server.exe'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{BJQ8T0I3-2TFW-6BCP-M54H-25848GRQVRL1}] 'StubPath' = '<SYSTEM32>\install\server.exe Restart'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '' = '%TEMP%\.exe'
Malicious functions:
Injects code into
the following system processes:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe
Modifies file system:
Creates the following files:
- %TEMP%\.exe
- <SYSTEM32>\install\server.exe
- %TEMP%\%USERNAME%2.txt
- %APPDATA%\%USERNAME%log.dat
- %TEMP%\%USERNAME%7
- %TEMP%\%USERNAME%8
Sets the 'hidden' attribute to the following files:
- %APPDATA%\%USERNAME%log.dat
Deletes the following files:
- %TEMP%\%USERNAME%2.txt
- %TEMP%\%USERNAME%8
- %TEMP%\%USERNAME%7
Substitutes the following files:
- %TEMP%\%USERNAME%8
- %TEMP%\%USERNAME%7
Network activity:
Connects to:
- 'gu###.no-ip.info':800
UDP:
- DNS ASK gu###.no-ip.info
Miscellaneous:
Creates and executes the following:
- '<SYSTEM32>\install\server.exe'
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe'
- '<SYSTEM32>\cmd.exe' /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "" /t REG_SZ /d "%TEMP%\.exe
- '<SYSTEM32>\reg.exe' add "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "" /t REG_SZ /d "%TEMP%\.exe
- '%ProgramFiles%\Internet Explorer\IEXPLORE.EXE'
