Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{E377952D-ECD7-C3DF-BEFC-7B3B2E7E325C}] 'StubPath' = '%APPDATA%\svchost.exe'
- [<HKCU>\Software\Microsoft\Active Setup\Installed Components\{E377952D-ECD7-C3DF-BEFC-7B3B2E7E325C}] 'StubPath' = '%APPDATA%\svchost.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft' = '%APPDATA%\svchost.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run] 'Microsoft' = '%APPDATA%\svchost.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Microsoft' = '%APPDATA%\svchost.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\Autorun.ini
- <Drive name for removable media>:\<Virus name>.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%\remote
- %APPDATA%\svchost.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\<Virus name>.exe
- <Drive name for removable media>:\Autorun.ini
- %APPDATA%\svchost.exe
- <Full path to virus>
Network activity:
Connects to:
- '6l######n4z3olc.sytes.net':666
- '7l######n4z3olc.sytes.net':666
- '4l######n4z3olc.sytes.net':666
- '5l######n4z3olc.sytes.net':666
UDP:
- DNS ASK 5l######n4z3olc.sytes.net
- DNS ASK 4l######n4z3olc.sytes.net
- DNS ASK 7l######n4z3olc.sytes.net
- DNS ASK 6l######n4z3olc.sytes.net
- DNS ASK 1l######n4z3olc.sytes.net
- DNS ASK lm######4z3olc.sytes.net
- DNS ASK 3l######n4z3olc.sytes.net
- DNS ASK 2l######n4z3olc.sytes.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
