Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Home Media' = '<SYSTEM32>\wmprk64.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\~Config.{645FF040-5081-101B-9F08-00AA002F954E}\cfg-x38501943.np
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List] '<SYSTEM32>\wmprk64.exe' = '<SYSTEM32>\wmprk64.exe:*:Enabled:Windows Home Media'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\wmprk64.exe' = '<SYSTEM32>\wmprk64.exe:*:Enabled:Windows Home Media'
Creates and executes the following:
- <SYSTEM32>\wmprk64.exe <Full path to virus>
Executes the following:
- <SYSTEM32>\net.exe stop OutpostFirewall
- <SYSTEM32>\sc.exe delete ekrn
- <SYSTEM32>\net1.exe stop ekrn
- <SYSTEM32>\sc.exe stop OutpostFirewall
- <SYSTEM32>\net1.exe stop OutpostFirewall
- <SYSTEM32>\sc.exe delete OutpostFirewall
- <SYSTEM32>\sc.exe config OutpostFirewall start= disabled
- <SYSTEM32>\sc.exe config ekrn start= disabled
- <SYSTEM32>\sc.exe stop NOD32krn
- <SYSTEM32>\sc.exe config NOD32krn start= disabled
- <SYSTEM32>\net.exe stop NOD32krn
- <SYSTEM32>\net1.exe stop NOD32krn
- <SYSTEM32>\net.exe stop ekrn
- <SYSTEM32>\sc.exe stop ekrn
- <SYSTEM32>\sc.exe delete NOD32krn
Injects code into
the following system processes:
- %WINDIR%\Explorer.EXE
Searches for windows to
detect analytical utilities:
- ClassName: 'PROCMON_WINDOW_CLASS' WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
detect programs and games:
- ClassName: 'gdkWindowToplevel' WindowName: 'The Wireshark Network Analyzer'
Hides the following processes:
- <Full path to virus>
- <SYSTEM32>\wmprk64.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\n0x8d[1].txt
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\n0x6d[1].zip
- <SYSTEM32>\wmprk64.exe
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\wmprk64.exe
Deletes itself.
Network activity:
Connects to:
- '45.##.235.74':5781
- '20#.#1.237.59':80
- '45.##.235.77':6303
- '1.##6.35.98':80
- '45.##.235.76':51601
TCP:
HTTP GET requests:
- 20#.#1.237.59/aspnet_client/ip/n0x8d.txt
- 1.##6.35.98/css/n0x6d.zip
UDP:
- DNS ASK 02#.#ocaccio.su
- DNS ASK 01#.#ocaccio.su
- DNS ASK th#.#rapaima.su
- DNS ASK 03#.#ocaccio.su
Miscellaneous:
Searches for the following windows:
- ClassName: 'TCPViewClass' WindowName: ''
- ClassName: '#32770' WindowName: 'Regshot 1.8.2'
- ClassName: 'PROCEXPL' WindowName: ''
- ClassName: 'CNetmonMainFrame' WindowName: 'Microsoft Network Monitor 3.3'
- ClassName: 'SmartSniff' WindowName: 'SmartSniff'
- ClassName: 'CurrPorts' WindowName: 'CurrPorts'
