Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'nod32update' = '<SYSTEM32>\nod32krn.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\RECYCLER\NOD32_Update.exe
Malicious functions:
Executes the following:
- <SYSTEM32>\ntvdm.exe -f -i4
- <SYSTEM32>\ntvdm.exe -f -i3
- <SYSTEM32>\ntvdm.exe -f -i6
- <SYSTEM32>\ntvdm.exe -f -i5
- <SYSTEM32>\taskkill.exe /IM sslmsc.exe /F
- <SYSTEM32>\regsvr32.exe <SYSTEM32>\mfncom.dll /s
- <SYSTEM32>\taskkill.exe /IM winlogger.exe /F
- <SYSTEM32>\ntvdm.exe -f -i2
- <SYSTEM32>\ntvdm.exe -f -i1
Modifies file system :
Creates the following files:
- %WINDIR%\Temp\scs7.tmp
- %WINDIR%\Temp\scs8.tmp
- %WINDIR%\Temp\scs9.tmp
- %WINDIR%\Temp\scs5.tmp
- <SYSTEM32>\nod32krn.exe
- %WINDIR%\Temp\scs6.tmp
- %TEMP%\49828.30286026.tmp
- C:\RECYCLER\NOD32_Update.exe
- C:\autorun.inf
- %WINDIR%\Temp\scsA.tmp
- %WINDIR%\Temp\scsB.tmp
- %WINDIR%\Temp\scsC.tmp
- %WINDIR%\Temp\scs4.tmp
- <SYSTEM32>\mfncom.dll
- <SYSTEM32>\mfnhks32.dll
- <SYSTEM32>\mfnsp32.dll
- %TEMP%\225.03137588501.tmp
- %TEMP%\csrss.exe
- %TEMP%\56316.339969635.tmp
- %WINDIR%\Temp\scs1.tmp
- %WINDIR%\Temp\scs2.tmp
- %WINDIR%\Temp\scs3.tmp
- <SYSTEM32>\mfnspinst32.exe
- <SYSTEM32>\mfnsvc.exe
- <SYSTEM32>\sslmsc.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\RECYCLER\NOD32_Update.exe
- C:\RECYCLER\NOD32_Update.exe
Deletes the following files:
- %WINDIR%\Temp\scsA.tmp
- %WINDIR%\Temp\scsB.tmp
- %WINDIR%\Temp\scs9.tmp
- %WINDIR%\Temp\scs7.tmp
- %WINDIR%\Temp\scsC.tmp
- C:\autorun.inf
- <Drive name for removable media>:\autorun.inf
- C:\RECYCLER\NOD32_Update.exe
- <Drive name for removable media>:\RECYCLER\NOD32_Update.exe
- %WINDIR%\Temp\scs3.tmp
- %WINDIR%\Temp\scs1.tmp
- %TEMP%\csrss.exe
- %WINDIR%\Temp\scs2.tmp
- %WINDIR%\Temp\scs4.tmp
- %WINDIR%\Temp\scs8.tmp
- %WINDIR%\Temp\scs6.tmp
- <SYSTEM32>\nod32krn.exe
- %WINDIR%\Temp\scs5.tmp
Network activity:
Connects to:
- 'www.dd##do1.com':80
TCP:
HTTP POST requests:
- www.dd##do1.com/ecb.php?cb############################
UDP:
- DNS ASK www.dd##do1.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-ba0.ba4.3f0009'
- ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-b90.b94.3e0008'
- ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-be0.be4.420006'
- ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-bb0.bb8.40000a'
- ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-b4c.b50.3b0005'
- ClassName: 'Shell_traywnd' WindowName: ''
- ClassName: '' WindowName: ''
- ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-b54.b58.3c0006'
