Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,C:\DOCUME~1\%USERNAME%\LOCALS~1\Temp\ctfmon.exe,'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Executes the following:
- <SYSTEM32>\wbem\wmic.exe nicconfig where (IPEnabled=TRUE) call SetDNSServerSearchOrder ("111.111.111.1","8.8.8.8")
- <SYSTEM32>\find.exe "["
- <SYSTEM32>\ping.exe ju.projactx.com
- <SYSTEM32>\find.exe /i "a interface"
- <SYSTEM32>\ipconfig.exe /renew
- <SYSTEM32>\ipconfig.exe /flushdns
- <SYSTEM32>\ipconfig.exe /registerdns
- <SYSTEM32>\reg.exe add "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v DisableSR /t REG_DWORD /d 0x00000001 /f
- <SYSTEM32>\reg.exe add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f
- <SYSTEM32>\fsutil.exe file createnew "%TEMP%\thunb.db" 666"
- <SYSTEM32>\cmd.exe /c ""%TEMP%\1.tmp\japao.bat" "
- <SYSTEM32>\reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v "Userinit" /t REG_SZ /d "<SYSTEM32>\userinit.exe,C:\Documents and Settings\%USERNAME%\LOCALS~1\Temp\ctfmon.exe," /f
- <SYSTEM32>\reg.exe add "HKLM\Software\Microsoft\Security Center" /v UpdatesDisableNotify /t REG_DWORD /d 0x00000001 /f
- <SYSTEM32>\reg.exe add "HKLM\Software\Microsoft\Security Center" /v FirewallDisableNotify /t REG_DWORD /d 0x00000001 /f
- <SYSTEM32>\reg.exe add "HKLM\Software\Microsoft\Security Center" /v AntiVirusDisableNotify /t REG_DWORD /d 0x00000001 /f
Modifies file system :
Creates the following files:
- <SYSTEM32>\wbem\AutoRecover\C8463ECBE33BC240263A0B094E46D510.mof
- %TEMP%\tmp4.tmp
- <SYSTEM32>\wbem\AutoRecover\23BDE61F1F4FACE17E9B0C01F2A1FD9B.mof
- %TEMP%\tmp3.tmp
- %TEMP%\1.tmp\japao.bat
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\r1[1].php
- %TEMP%\tmp2.tmp
Deletes the following files:
- %TEMP%\tmp4.tmp
- %TEMP%\tmp3.tmp
- %TEMP%\tmp2.tmp
Network activity:
Connects to:
- '91.##1.203.195':80
- 'localhost':1036
TCP:
HTTP GET requests:
- 91.##1.203.195/r1.php?a=###################
UDP:
- DNS ASK ju.##ojactx.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_AutodialMonitor' WindowName: ''
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: '' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
