Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = '<SYSTEM32>\rundll32\rundll32.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = '<SYSTEM32>\rundll32\rundll32.exe'
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'HKLM' = '<SYSTEM32>\rundll32\rundll32.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKCU' = '<SYSTEM32>\rundll32\rundll32.exe'
- [<HKLM>\Software\Wow6432Node\Microsoft\Active Setup\Installed Components\{30STONEL-0IJO-G1VM-XOEN-W22753T7J14H}] 'StubPath' = '<SYSTEM32>\rundll32\rundll32.exe Restart'
Malicious functions
To bypass firewall, removes or modifies the following registry keys
- [<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\bot.exe' = '%APPDATA%\bot.exe:*:Enabled:Windows Messange...
- [<HKLM>\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to file>' = '<Full path to file>:*:Enabled:Windows Mess...
Installs hooks to intercept notifications
on keystrokes:
- Handler for all processes: <Full path to file>
Modifies file system
Creates the following files
- %APPDATA%\bvwuzkd\kppbruxp\5.7.5.10\winlogonb.exe
- %APPDATA%\bvwuzkd\kppbruxp\5.7.5.10\winlogon.sys
- %TEMP%\wmpnetk.exe
- %WINDIR%\syswow64\rundll32\rundll32.exe
- %TEMP%\user2.txt
- %APPDATA%\bot.exe
- %APPDATA%\userlog.dat
- %TEMP%\user7
- %APPDATA%\test
- %TEMP%\user8
Sets the 'hidden' attribute to the following files
- %WINDIR%\syswow64\rundll32\rundll32.exe
- %APPDATA%\userlog.dat
Deletes the following files
- %TEMP%\user2.txt
- %TEMP%\user7
- %TEMP%\user8
Substitutes the following files
- %TEMP%\user7
- %TEMP%\user8
Network activity
UDP
- DNS ASK fd####.no-ip.biz
Miscellaneous
Creates and executes the following
- '%APPDATA%\bvwuzkd\kppbruxp\5.7.5.10\winlogonb.exe'
- '%APPDATA%\bvwuzkd\kppbruxp\5.7.5.10\winlogon.sys'
- '%WINDIR%\syswow64\rundll32\rundll32.exe'
- '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "<Full path to file>" /t REG_SZ /d "<Full path to file>:*...' (with hidden window)
- '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\bot.exe" /t REG_SZ /d "%APPDATA%\bot.exe:*:Ena...' (with hidden window)
- '%WINDIR%\syswow64\rundll32\rundll32.exe' ' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
- '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "<Full path to file>" /t REG_SZ /d "<Full path to file>:*...
- '%WINDIR%\syswow64\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\bot.exe" /t REG_SZ /d "%APPDATA%\bot.exe:*:Ena...
- '%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
- '%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "<Full path to file>" /t REG_SZ /d "<Full path to file>:*:Enable...
- '%WINDIR%\syswow64\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\bot.exe" /t REG_SZ /d "%APPDATA%\bot.exe:*:Enabled:Wi...
