Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'c' = 'wscript.exe //B "%TEMP%\c.vbs"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'c' = 'wscript.exe //B "%TEMP%\c.vbs"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'wextract_cleanup0' = 'rundll32.exe <SYSTEM32>\advpack.dll,DelNodeRunDLL32 "%TEMP%\IXP000.TMP\"'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce] 'wextract_cleanup1' = 'rundll32.exe <SYSTEM32>\advpack.dll,DelNodeRunDLL32 "%TEMP%\IXP001.TMP\"'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\c.vbs
Creates the following files on removable media:
- <Drive name for removable media>:\svchost.lnk
- <Drive name for removable media>:\svchost.exe
- <Drive name for removable media>:\c.vbs
Malicious functions:
Creates and executes the following:
- '%TEMP%\gFaZU.exe' /stext %TEMP%\pass.txt
- '%TEMP%\IXP000.TMP\u.exe'
- '%TEMP%\IXP000.TMP\aw.EXE'
- '%TEMP%\IXP001.TMP\s.exe'
- '%TEMP%\gFaZU.exe' (downloaded from the Internet)
Executes the following:
- '<SYSTEM32>\wscript.exe' //B "%TEMP%\c.vbs"
- '<SYSTEM32>\wscript.exe' c.vbs
Modifies file system :
Creates the following files:
- %HOMEPATH%\My Documents\Downloads\Uninstall Information.exe
- %HOMEPATH%\My Documents\Downloads\Reference Assemblies.exe
- %HOMEPATH%\My Documents\Downloads\Windows NT.exe
- %HOMEPATH%\My Documents\Downloads\Windows Media Player.exe
- %HOMEPATH%\My Documents\Downloads\NetMeeting.exe
- %HOMEPATH%\My Documents\Downloads\MSN Gaming Zone.exe
- %HOMEPATH%\My Documents\Downloads\Outlook Express.exe
- %HOMEPATH%\My Documents\Downloads\Online Services.exe
- %APPDATA%\uTorrent\settings.dat.new
- %HOMEPATH%\Cookies\%USERNAME%@localhost[1].txt
- %APPDATA%\uTorrent\toolbar.benc.new
- %TEMP%\utt1.tmp.new
- %HOMEPATH%\My Documents\Downloads\xerox.exe
- %HOMEPATH%\My Documents\Downloads\WindowsUpdate.exe
- %APPDATA%\Microsoft\Crypto\RSA\S-1-5-21-2052111302-484763869-725345543-1003\1f91d2d17ea675d4c2c3192e241743f9_23ef5514-3059-436f-a4a7-4cefaab20eb1
- %TEMP%\gFaZU.exe
- %TEMP%\c.vbs
- %HOMEPATH%\My Documents\Downloads\ComPlus Applications.exe
- %HOMEPATH%\My Documents\Downloads\Common Files.exe
- %TEMP%\IXP000.TMP\u.exe
- %TEMP%\IXP000.TMP\aw.EXE
- %TEMP%\IXP001.TMP\s.exe
- %TEMP%\IXP001.TMP\c.vbs
- %HOMEPATH%\My Documents\Downloads\Movie Maker.exe
- %HOMEPATH%\My Documents\Downloads\Microsoft.NET.exe
- %HOMEPATH%\My Documents\Downloads\MSN.exe
- %HOMEPATH%\My Documents\Downloads\MSBuild.exe
- %HOMEPATH%\My Documents\Downloads\Internet Explorer.exe
- %HOMEPATH%\My Documents\Downloads\FireFox.exe
- %HOMEPATH%\My Documents\Downloads\microsoft frontpage.exe
- %HOMEPATH%\My Documents\Downloads\Messenger.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\svchost.exe
- %TEMP%\gFaZU.exe
- <Drive name for removable media>:\c.vbs
Deletes the following files:
- %TEMP%\IXP001.TMP\c.vbs
- %TEMP%\IXP001.TMP\s.exe
- %TEMP%\gFaZU.exe
Moves the following files:
- from %APPDATA%\uTorrent\toolbar.benc.new to %APPDATA%\uTorrent\toolbar.benc
- from %TEMP%\utt1.tmp.new to %TEMP%\utt1.tmp
- from %APPDATA%\uTorrent\settings.dat.new to %APPDATA%\uTorrent\settings.dat
Network activity:
Connects to:
- 'localhost':1043
- 'st###.user32.com':3333
- 'up####.utorrent.li':80
- 'up####.utorrent.com':80
- 'ch####p.dyndns.org':80
- 'wp#d':80
- 'up.###-point.com':80
- 'localhost':1039
TCP:
HTTP GET requests:
- up####.utorrent.com/installoffer.php?h=############################################################################################
- up####.utorrent.li/installstats.php?cl#############################################################################################################################################################
- up####.utorrent.li/installstats.php?cl###########################################################################################################################
- wp#d/wpad.dat
- ch####p.dyndns.org/
- up.###-point.com/uploads/da80250496e71.png
UDP:
- DNS ASK ro####.bittorrent.com
- DNS ASK ro####.utorrent.com
- DNS ASK up####.utorrent.li
- DNS ASK up####.utorrent.com
- DNS ASK ch####p.dyndns.org
- DNS ASK wp#d
- DNS ASK st###.user32.com
- DNS ASK up.###-point.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'µTorrent4823DF041B09' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
- ClassName: '?Torrent4823DF041B09' WindowName: ''
