Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{6CFDBEB1-0CEF-A467-DC7E-FE07113F9DFE}] 'StubPath' = '%APPDATA%\svchost.exe'
- [<HKCU>\Software\Microsoft\Active Setup\Installed Components\{6CFDBEB1-0CEF-A467-DC7E-FE07113F9DFE}] 'StubPath' = '%APPDATA%\svchost.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Update' = '%APPDATA%\svchost.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run] 'Update' = '%APPDATA%\svchost.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Update' = '%APPDATA%\svchost.exe'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\svchost.exe' = '%APPDATA%\svchost.exe:*:Enabled:Windows Messanger'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:Windows Messanger'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
Executes the following:
- '<SYSTEM32>\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "%APPDATA%\svchost.exe" /t REG_SZ /d "%APPDATA%\svchost.exe:*:Enabled:Windows Messanger" /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>:*:Enabled:Windows Messanger" /f
- '<SYSTEM32>\reg.exe' ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
Modifies file system :
Creates the following files:
- %APPDATA%\notepad_tempsave
Moves itself:
- from <Full path to virus> to %APPDATA%\svchost.exe
Network activity:
Connects to:
- '2l#####eh4ck.zapto.org':888
- '1l#####eh4ck.zapto.org':888
- 'lu#####h4ck.zapto.org':888
UDP:
- DNS ASK 2l#####eh4ck.zapto.org
- DNS ASK 1l#####eh4ck.zapto.org
- DNS ASK lu#####h4ck.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
