Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'system' = '<SYSTEM32>\system.exe'
Malicious functions:
Creates and executes the following:
- '<Full path to virus>'
- '%PROGRAM_FILES%\AAV\K200.exe'
- '<SYSTEM32>\system.exe'
Executes the following:
- '<SYSTEM32>\sc.exe' delete ZhuDongFangYu
- '<SYSTEM32>\sc.exe' stop 360rp
- '<SYSTEM32>\runonce.exe' -r
- '<SYSTEM32>\sc.exe' stop ZhuDongFangYu
- '<SYSTEM32>\sc.exe' delete ekrn
- '<SYSTEM32>\sc.exe' stop PolicyAgent
- '<SYSTEM32>\sc.exe' delete 360rp
- '<SYSTEM32>\sc.exe' stop ekrn
- '<SYSTEM32>\net.exe' stop MpsSvc
- '<SYSTEM32>\sc.exe' config WinDefend start= disabled
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\rlfat.dll Exxcute
- '<SYSTEM32>\net.exe' stop WinDefend
- '<SYSTEM32>\net1.exe' stop WinDefend
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\mgpnb.dll Exucute
- '<SYSTEM32>\sc.exe' config MpsSvc start= disabled
- '<SYSTEM32>\net1.exe' stop MpsSvc
Injects code into
the following system processes:
- <SYSTEM32>\cscript.exe
- <SYSTEM32>\rundll32.exe
- <SYSTEM32>\cmd.exe
- %WINDIR%\Explorer.EXE
- <SYSTEM32>\ctfmon.exe
a large number of user processes.
Terminates or attempts to terminate
the following user processes:
- ekrn.exe
- 360tray.exe
Modifies file system :
Creates the following files:
- <SYSTEM32>\mgpnb.dll
- %PROGRAM_FILES%\AAV\CDriver.Inf
- %TEMP%\RarSFX0\timage.dll
- %TEMP%\1.tmp
- <DRIVERS>\SET4.tmp
- %WINDIR%\inf\oem3.PNF
- %WINDIR%\inf\oem3.inf
- %TEMP%\RarSFX0\setup.bat
- %PROGRAM_FILES%\AAV\CDriver.sys
- <SYSTEM32>\rlfat.dll
- <SYSTEM32>\system.exe
- %PROGRAM_FILES%\AAV\K200.exe
- %TEMP%\RarSFX0\readme.txt
- %TEMP%\RarSFX0\LOGO.ico
- <Full path to virus>
Deletes the following files:
- %PROGRAM_FILES%\AAV\CDriver.sys
- %PROGRAM_FILES%\AAV\CDriver.Inf
- %TEMP%\RarSFX0\timage.dll
- %PROGRAM_FILES%\AAV\K200.exe
Moves the following files:
- from <DRIVERS>\SET4.tmp to <DRIVERS>\CDriver.sys
- from <SYSTEM32>\system.exe to <SYSTEM32>\system.exe
Moves itself:
- from <Full path to virus> to <Full path to virus>t
Network activity:
Connects to:
- 'tr###.t3egc.com':8080
UDP:
- DNS ASK tr###.t3egc.com
Miscellaneous:
Searches for the following windows:
- ClassName: '(null)' WindowName: 'MiniSniffer'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'EDIT' WindowName: '(null)'
