Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{LDVT254M-GF44-451E-1307-6W5OO3AE0IF7}] 'StubPath' = '<SYSTEM32>\install\server.exe Restart'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{LDVT254M-GF44-451E-1307-6W5OO3AE0IF7}] 'StubPath' = ''
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'HKLM' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKCU' = ''
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Cigcigi Multi Freezer.exe' = '%TEMP%\Cigcigi Multi Freezer.exe:*:Enabled:ipsec'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Creates and executes the following:
- %TEMP%\server.exe
- %TEMP%\Cigcigi Multi Freezer.exe
Injects code into
the following system processes:
- <SYSTEM32>\ctfmon.exe
a large number of user processes.
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
- <SYSTEM32>\install\server.exe
- %TEMP%\XX--XX--XX.txt
- %TEMP%\Cigcigi Multi Freezer.exe
- %TEMP%\server.exe
Deletes the following files:
- %TEMP%\server.exe
- %TEMP%\Cigcigi Multi Freezer.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
