Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kmatr' = '%WINDIR%\Tasks\ifans.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ikhib' = '%WINDIR%\Fonts\ifans.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'udydi' = '%WINDIR%\system\ifans.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'nbodk' = '<SYSTEM32>\ifans.exe'
Creates or modifies the following files:
- %WINDIR%\Tasks\cts2
- %WINDIR%\Tasks\ma1.tmp
- %WINDIR%\Tasks\codm
- %WINDIR%\Tasks\ifans.exe
- %WINDIR%\Tasks\b6.log
Infects the following executable system files:
- <SYSTEM32>\dllcache\cmd.exe
- <SYSTEM32>\cmd.exe
- %WINDIR%\pchealth\helpctr\binaries\msconfig.exe
- <SYSTEM32>\wupdmgr.exe
- <SYSTEM32>\dllcache\wupdmgr.exe
- %WINDIR%\regedit.exe
- <SYSTEM32>\regedt32.exe
- <SYSTEM32>\dllcache\regedt32.exe
- <SYSTEM32>\dllcache\taskmgr.exe
- <SYSTEM32>\dllcache\regedit.exe
- <SYSTEM32>\taskmgr.exe
Substitutes the following executable system files:
- <SYSTEM32>\dllcache\msconfig.exe with <SYSTEM32>\dllcache\msconfig.exe.new
- %WINDIR%\pchealth\helpctr\binaries\msconfig.exe with %WINDIR%\pchealth\helpctr\binaries\msconfig.exe.new
Malicious functions:
Executes the following:
- %PROGRAM_FILES%\Internet Explorer\IEXPLORE.EXE http://www.cr##ks.am/d.x?46###
Modifies file system :
Creates the following files:
- %WINDIR%\Fonts\ifans.exe
- <SYSTEM32>\ifans.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\d[1].x
- C:\Far2\Far.exe
- %WINDIR%\system\ifans.exe
- %WINDIR%\system\systray.exe
- %WINDIR%\system\msconfig.exe
- %WINDIR%\command.com
- %WINDIR%\wupdmgr.exe
Network activity:
Connects to:
- 'ca#####.nas.tiscali.de':53
- '62.##.16.130':53
- 'dn##.#iscalinet.es':53
- 'ra#####.red.retevision.es':53
- 'www.cr##ks.am':80
- 'localhost':1035
- 'ns####.uninet.net.mx':53
- 'ma######2.red.retevision.es':53
TCP:
HTTP GET requests:
- www.cr##ks.am/d.x?46###
UDP:
- DNS ASK ca#####.nas.tiscali.de
- DNS ASK ra#####.red.retevision.es
- DNS ASK dn##.#iscalinet.es
- DNS ASK www.cr##ks.am
- DNS ASK ma######2.red.retevision.es
- DNS ASK ns####.uninet.net.mx
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_AutodialMonitor' WindowName: ''
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: '' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
