Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '34d91dfb34a7283483d0aaba9d10147d' = '%TEMP%\Microsoft\svchost.exe'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\svchost.exe
Creates the following files on removable media:
- <Drive name for removable media>:\System.exe
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] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall set opmode disable
Modifies file system:
Creates the following files:
- %TEMP%\Microsoft\svchost.exe
Sets the 'hidden' attribute to the following files:
- %TEMP%\BlackData.dat
- <Drive name for removable media>:\System.exe
- %TEMP%\Microsoft\svchost.exe
- %HOMEPATH%\Start Menu\Programs\Startup\svchost.exe
Network activity:
Connects to:
- 'ru######racker99.ddns.net':1177
UDP:
- DNS ASK ru######racker99.ddns.net
Miscellaneous:
Executes the following:
- '%CommonProgramFiles%\Microsoft Shared\DW\DW20.EXE' -x -s 892
