Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000011] 'PackedCatalogItem' = '{25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000001] 'PackedCatalogItem' = '{43,3a,5c,57,49,4e,44,4f,57,53,5c,73,79,73,74,65,6d,33,32,5c,45,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000009] 'PackedCatalogItem' = '{25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000010] 'PackedCatalogItem' = '{25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000010] 'PackedCatalogItem' = '{43,3a,5c,57,49,4e,44,4f,57,53,5c,73,79,73,74,65,6d,33,32,5c,45,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000011] 'PackedCatalogItem' = '{43,3a,5c,57,49,4e,44,4f,57,53,5c,73,79,73,74,65,6d,33,32,5c,45,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000002] 'PackedCatalogItem' = '{43,3a,5c,57,49,4e,44,4f,57,53,5c,73,79,73,74,65,6d,33,32,5c,45,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000003] 'PackedCatalogItem' = '{43,3a,5c,57,49,4e,44,4f,57,53,5c,73,79,73,74,65,6d,33,32,5c,45,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000003] 'PackedCatalogItem' = '{25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000004] 'PackedCatalogItem' = '{25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000001] 'PackedCatalogItem' = '{25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000002] 'PackedCatalogItem' = '{25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000007] 'PackedCatalogItem' = '{25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000008] 'PackedCatalogItem' = '{25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000005] 'PackedCatalogItem' = '{25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,...
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSock2\Parameters\Protocol_Catalog9\Catalog_Entries\000000000006] 'PackedCatalogItem' = '{25,53,79,73,74,65,6d,52,6f,6f,74,25,5c,73,79,73,74,65,6d,33,32,...
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\WYbcgjkm] 'Start' = '00000002'
- [<HKLM>\SYSTEM\ControlSet001\Services\WYbcgjkm] 'ImagePath' = '%CommonProgramFiles%\Microsoft Shared\MSINFO\CGJNTXZd.exe -k'
- [<HKLM>\SYSTEM\ControlSet001\Services\Stuvwx Abcdefgh Jkl] 'Start' = '00000002'
- [<HKLM>\SYSTEM\ControlSet001\Services\Stuvwx Abcdefgh Jkl] 'ImagePath' = '<SYSTEM32>\boxlou.exe'
Malicious functions:
Executes the following:
- '<SYSTEM32>\netsh.exe' winsock reset
- '<SYSTEM32>\cmd.exe' /c "%CommonProgramFiles%\Microsoft Shared\MSINFO\CGJNTXZd.bat"
- '<SYSTEM32>\cmd.exe' /c del %WINDIR%\WINDOW~1.EXE > nul
- '%CommonProgramFiles%\Microsoft Shared\MSInfo\CGJNTXZd.exe'
- 'C:\twunk_32.exe'
- '%WINDIR%\Windowsqgt.exe'
- '<SYSTEM32>\boxlou.exe'
Modifies file system:
Creates the following files:
- %CommonProgramFiles%\Microsoft Shared\MSInfo\CGJNTXZd.bat
- <Current directory>\і¬·І.dll
- <SYSTEM32>\ESPI11.dll
- <SYSTEM32>\boxlou.exe
- C:\twunk_32.exe
- %CommonProgramFiles%\Microsoft Shared\MSInfo\CGJNTXZd.exe
- %WINDIR%\Windowsqgt.exe
Sets the 'hidden' attribute to the following files:
- %WINDIR%\Windowsqgt.exe
- %CommonProgramFiles%\Microsoft Shared\MSInfo\CGJNTXZd.exe
- C:\twunk_32.exe
Network activity:
Connects to:
- '26####.dowei8.com':31874
- '45.#7.18.37':2017
UDP:
- DNS ASK 26####.dowei8.com
- DNS ASK .#.
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'MS_WINHELP' WindowName: ''
