Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'svhost' = '%TEMP%\loader.vbs'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Microsoft' = '%APPDATA%\Microsoft\Network.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft' = '%APPDATA%\Microsoft\Network.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'svhost' = '%TEMP%\loader.vbs'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\Network.lnk
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\Network.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled: Microsoft'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\Microsoft\Network.exe' = '%APPDATA%\Microsoft\Network.exe:*:...
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
To complicate detection of its presence in the operating system,
blocks the following features:
- User Account Control (UAC)
Executes the following:
- '<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Security Center" /v "UACDisableNotify" /t REG_DWORD /d "0" /f
- '<SYSTEM32>\cmd.exe' /c REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v "Microsoft" /t REG_SZ /d "%APPDATA%\Microsoft\Network.exe" /f
- '<SYSTEM32>\cmd.exe' /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "svhost" /t REG_SZ /d "%TEMP%\loader.vbs" /f
- '<SYSTEM32>\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\Microsoft\Network.exe" /t REG_SZ /d "%APPDATA%...
- '<SYSTEM32>\cmd.exe' /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Microsoft" /t REG_SZ /d "%APPDATA%\Microsoft\Network.exe" /f
- '<SYSTEM32>\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\Microsoft\Network.exe" /t REG_SZ /d "%APPDATA%\Micros...
- '<SYSTEM32>\reg.exe' ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v "svhost" /t REG_SZ /d "%TEMP%\loader.vbs" /f
- '<SYSTEM32>\reg.exe' ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v "Microsoft" /t REG_SZ /d "%APPDATA%\Microsoft\Network.exe" /f
- '<SYSTEM32>\cmd.exe' /c %TEMP%\994228541.bat
- '<SYSTEM32>\reg.exe' ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "Microsoft" /t REG_SZ /d "%APPDATA%\Microsoft\Network.exe" /f
- '<SYSTEM32>\cmd.exe' /c REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Run /v "svhost" /t REG_SZ /d "%TEMP%\loader.vbs" /f
- '<SYSTEM32>\reg.exe' ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v "svhost" /t REG_SZ /d "%TEMP%\loader.vbs" /f
- '<SYSTEM32>\net1.exe' stop security center
- '<SYSTEM32>\net1.exe' stop WinDefend
- '<SYSTEM32>\cmd.exe' /c REG ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v "EnableLUA" /t REG_DWORD /d "0" /f
- '<SYSTEM32>\netsh.exe' firewall set opmode disable
- '<SYSTEM32>\net.exe' stop security center
- '<SYSTEM32>\net.exe' stop WinDefend
- '<SYSTEM32>\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "<Full path to virus>" /t REG_SZ /d "<Full path to virus>...
- '<SYSTEM32>\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
- '<SYSTEM32>\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "<Full path to virus>" /t REG_SZ /d "<Full path to virus>:*:Enab...
- '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Microsoft\Security Center" /v "UACDisableNotify" /t REG_DWORD /d "0" /f
- '<SYSTEM32>\cmd.exe' /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
- '<SYSTEM32>\reg.exe' ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v "EnableLUA" /t REG_DWORD /d "0" /f
Modifies file system:
Creates the following files:
- %TEMP%\loader.vbs
- %TEMP%\994228541.bat
- %TEMP%\firewallapp.bat
- %TEMP%\~DF9743.tmp
- %APPDATA%\Microsoft\Network.exe
Sets the 'hidden' attribute to the following files:
- %TEMP%\firewallapp.bat
- %TEMP%\loader.vbs
- <Drive name for removable media>:\autorun.inf
- %APPDATA%\Microsoft\Network.exe
Deletes the following files:
- %TEMP%\~DF9743.tmp
Network activity:
Connects to:
- 'localhost':1039
