Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = '%TEMP%\FolderName\file.exe'
Malicious functions:
Creates and executes the following:
- '%TEMP%\conhost.exe'
Executes the following:
- '<SYSTEM32>\reg.exe' add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /v Shell /t REG_SZ /d "%TEMP%\FolderName\file.exe" /f
- '<SYSTEM32>\wscript.exe' "%TEMP%\conhostf\conhostvbs.vbs" "%TEMP%\conhostf\conhost2.bat"
Modifies file system :
Creates the following files:
- %TEMP%\FolderName\conhost.bat
- %APPDATA%\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\file.exe
- %TEMP%\FolderName\file.exe
- %TEMP%\conhost.exe
- %TEMP%\conhostf\conhost2.bat
- %TEMP%\conhostf\conhostvbs.vbs
- %TEMP%\conhostf\conhost1.bat
Deletes the following files:
- %TEMP%\conhostf\conhostvbs.vbs
- %TEMP%\conhostf\conhost2.bat
- %TEMP%\conhostf\conhost1.bat
Network activity:
UDP:
- DNS ASK dn#.##ftncsi.com
- DNS ASK sh#####2014.ddns.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
