Trojan.StartPage.56495

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Classes\wrifile\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\Winamp.File\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\cdafile\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\giffile\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\AVIFile\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\htmlfile\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\pngfile\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\FirefoxHTML\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\FirefoxURL\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\Folder\shell\open\command] '' = ''
[<HKLM>\SOFTWARE\Classes\WinRAR\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\WinRAR.ZIP\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\WinRAR.REV\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\ratfile\Shell\Open\Command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\txtfile\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\comfile\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, Expl0rer.exe'
[<HKLM>\SOFTWARE\Classes\regedit\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\regfile\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\mp3file\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\AUFile\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\scrfile\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\xmlfile\shell\Open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\mpegfile\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\MPlayer\shell\open\command] '' = 'Shutdown -s -f -t 0'
[<HKLM>\SOFTWARE\Classes\htfile\shell\open\command] '' = 'Shutdown -s -f -t 0'

Creates or modifies the following files:

%ALLUSERSPROFILE%\Start Menu\Programs\Startup.exe

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

hidden files
file extensions

blocks the following features:

System Restore (SR)

Terminates or attempts to terminate

the following user processes:

NAVAPW32.EXE
nod32.exe
fsavgui.exe
GUARD.EXE
firefox.exe
safari.exe
ZONEALARM.EXE
chrome.exe
AVPM.EXE
AVGCC32.EXE
AVGCTRL.EXE
ashAvast.exe
avgcc.exe
AVP32.EXE
AVPCC.EXE
AVP.COM
AVP.EXE

Searches for windows to

detect programs and games:

ClassName: 'YahooBuddyMain' WindowName: 'Yahoo! Messenger'

Modifies settings of Windows Explorer:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoSetFolders' = '00000001'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoSetTaskBar' = '00000001'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoControlPanel' = '00000001'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoRun' = '00000001'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoFolderOptions' = '00000001'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFind' = '00000001'

Modifies settings of Windows Internet Explorer:

[<HKCU>\Software\Microsoft\Internet Explorer\Main] 'Window Title' = 'You are Infected by: A(H1N1) ViruX!.'

Forces autoplay for removable media.

Sets a new unauthorized home page for Windows Internet Explorer.

Modifies file system :

Creates the following files:

%APPDATA%.exe
%HOMEPATH%.exe
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ.exe
%APPDATA%\Microsoft.exe
%APPDATA%\Identities\{5518F2FB-DB74-45A3-BEC1-4575D8D9DC84}.exe
%APPDATA%\Identities.exe
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H.exe
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files.exe
C:\Documents and Settings\NetworkService\Local Settings\Temp.exe
C:\Documents and Settings\NetworkService\Local Settings\History\History.IE5.exe
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F.exe
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN.exe
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5.exe
%APPDATA%\Microsoft\SystemCertificates\My\Certificates.exe
%APPDATA%\Microsoft\SystemCertificates\My.exe
%APPDATA%\Microsoft\SystemCertificates.exe
%APPDATA%\Microsoft\Windows.exe
%APPDATA%\Microsoft\SystemCertificates\My\CTLs.exe
%APPDATA%\Microsoft\SystemCertificates\My\CRLs.exe
%APPDATA%\Microsoft\MMC.exe
%APPDATA%\Microsoft\Credentials\S-1-5-21-2052111302-484763869-725345543-1003.exe
%APPDATA%\Microsoft\Credentials.exe
%APPDATA%\Microsoft\Address Book.exe
%APPDATA%\Microsoft\Media Player.exe
%APPDATA%\Microsoft\Internet Explorer\Quick Launch.exe
%APPDATA%\Microsoft\Internet Explorer.exe
C:\Documents and Settings\NetworkService\Local Settings\History.exe
C:\Documents and Settings\NetworkService\Application Data\Microsoft.exe
C:\Documents and Settings\NetworkService\Application Data.exe
C:\Documents and Settings\NetworkService.exe
C:\Documents and Settings\NetworkService\Application Data\Microsoft\Internet Explorer.exe
C:\Documents and Settings\NetworkService\Application Data\Microsoft\Credentials\S-1-5-20.exe
C:\Documents and Settings\NetworkService\Application Data\Microsoft\Credentials.exe
C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\MOE00UY1.exe
C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5.exe
C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files.exe
C:\Documents and Settings\LocalService\Local Settings\Temp.exe
C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\LBMMC3H3.exe
C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\CJCTQ25G.exe
C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\BGGTYMH1.exe
C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft.exe
C:\Documents and Settings\NetworkService\Local Settings\Application Data.exe
C:\Documents and Settings\NetworkService\Local Settings.exe
C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\Windows.exe
C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\Credentials\S-1-5-20.exe
C:\Documents and Settings\NetworkService\Local Settings\Application Data\Microsoft\Credentials.exe
C:\Documents and Settings\NetworkService\Cookies.exe
C:\Documents and Settings\NetworkService\Application Data\Microsoft\SystemCertificates\My.exe
C:\Documents and Settings\NetworkService\Application Data\Microsoft\SystemCertificates.exe
C:\Documents and Settings\NetworkService\Application Data\Microsoft\Media Player.exe
C:\Documents and Settings\NetworkService\Application Data\Microsoft\SystemCertificates\My\CTLs.exe
C:\Documents and Settings\NetworkService\Application Data\Microsoft\SystemCertificates\My\CRLs.exe
C:\Documents and Settings\NetworkService\Application Data\Microsoft\SystemCertificates\My\Certificates.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\5.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\4.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\3.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\8.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\7.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\6.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\2.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles.exe
<LS_APPDATA>\Mozilla\Firefox.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\1.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\0.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache.exe
%HOMEPATH%\Local Settings\History.exe
<LS_APPDATA>\VMware.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\startupCache.exe
%HOMEPATH%\Local Settings\Temp.exe
%HOMEPATH%\Local Settings\History\History.IE5\MSHist012011111020111111.exe
%HOMEPATH%\Local Settings\History\History.IE5.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\F.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\B.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\A.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\9.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\E.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\D.exe
<LS_APPDATA>\Mozilla\Firefox\Profiles\cwdgt0y8.default\Cache\C.exe
<LS_APPDATA>\Mozilla.exe
%HOMEPATH%\Desktop.exe
%HOMEPATH%\Cookies.exe
%APPDATA%\Mozilla\Firefox\Profiles\cwdgt0y8.default\chrome.exe
%HOMEPATH%\Local Settings.exe
%HOMEPATH%\Favorites\Links.exe
%HOMEPATH%\Favorites.exe
%APPDATA%\Mozilla\Firefox\Profiles\cwdgt0y8.default\bookmarkbackups.exe
%APPDATA%\Mozilla\Extensions.exe
%APPDATA%\Mozilla.exe
%APPDATA%\Microsoft\Windows\Themes.exe
%APPDATA%\Mozilla\Firefox\Profiles\cwdgt0y8.default.exe
%APPDATA%\Mozilla\Firefox\Profiles.exe
%APPDATA%\Mozilla\Firefox.exe
<LS_APPDATA>\Microsoft\Media Player.exe
<LS_APPDATA>\Microsoft\Credentials\S-1-5-21-2052111302-484763869-725345543-1003.exe
<LS_APPDATA>\Microsoft\Credentials.exe
<LS_APPDATA>\Microsoft\Windows Media\9.0.exe
<LS_APPDATA>\Microsoft\Windows Media.exe
<LS_APPDATA>\Microsoft\Windows.exe
<LS_APPDATA>\Microsoft\CD Burning.exe
<LS_APPDATA>\Identities\{5518F2FB-DB74-45A3-BEC1-4575D8D9DC84}.exe
<LS_APPDATA>\Identities.exe
<LS_APPDATA>.exe
<LS_APPDATA>\Microsoft.exe
<LS_APPDATA>\Identities\{5518F2FB-DB74-45A3-BEC1-4575D8D9DC84}\Microsoft\Outlook Express.exe
<LS_APPDATA>\Identities\{5518F2FB-DB74-45A3-BEC1-4575D8D9DC84}\Microsoft.exe
C:\Documents and Settings\LocalService\Local Settings\History\History.IE5.exe
%ALLUSERSPROFILE%\Start Menu.exe
%ALLUSERSPROFILE%\Favorites.exe
%ALLUSERSPROFILE%\DRM.exe
%ALLUSERSPROFILE%\Start Menu\Programs\Accessories\Accessibility.exe
%ALLUSERSPROFILE%\Start Menu\Programs\Accessories.exe
%ALLUSERSPROFILE%\Start Menu\Programs.exe
%ALLUSERSPROFILE%\Documents\My Videos.exe
%ALLUSERSPROFILE%\Documents\My Music\Sample Playlists.exe
%ALLUSERSPROFILE%\Documents\My Music\Sample Music.exe
%ALLUSERSPROFILE%\Documents\My Music\My Playlists.exe
%ALLUSERSPROFILE%\Documents\My Pictures\Sample Pictures.exe
%ALLUSERSPROFILE%\Documents\My Pictures.exe
%ALLUSERSPROFILE%\Documents\My Music\Sample Playlists\0338E140.exe
C:\Documents and Settings\Default User\Application Data\Microsoft\Internet Explorer.exe
C:\Documents and Settings\Default User\Application Data\Microsoft.exe
C:\Documents and Settings\Default User\Application Data.exe
C:\Documents and Settings\Default User\Application Data\Microsoft\SystemCertificates\My.exe
C:\Documents and Settings\Default User\Application Data\Microsoft\SystemCertificates.exe
C:\Documents and Settings\Default User\Application Data\Microsoft\Media Player.exe
C:\Documents and Settings\Default User.exe
%ALLUSERSPROFILE%\Start Menu\Programs\Accessories\System Tools.exe
%ALLUSERSPROFILE%\Start Menu\Programs\Accessories\Entertainment.exe
%ALLUSERSPROFILE%\Start Menu\Programs\Accessories\Communications.exe
%ALLUSERSPROFILE%\Templates.exe
%ALLUSERSPROFILE%\Start Menu\Programs\Games.exe
%ALLUSERSPROFILE%\Start Menu\Programs\Administrative Tools.exe
%ALLUSERSPROFILE%\Documents\My Music.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\DSS.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Crypto.exe
%ALLUSERSPROFILE%\Application Data\Microsoft.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\RSA\MachineKeys.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\RSA.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\DSS\MachineKeys.exe
%ALLUSERSPROFILE%\Application Data.exe
%WINDIR%\winlogon.exe
%WINDIR%\Expl0rer.exe
%ALLUSERSPROFILE%.exe
C:\Documents and Settings.exe
<Current directory>.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Connections\Pbk.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Connections\Cm.exe
%ALLUSERSPROFILE%\Documents.exe
%ALLUSERSPROFILE%\Desktop.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\Default Pictures.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Connections.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\HTML Help.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Dr Watson.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Crypto\RSA\S-1-5-18.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Network.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Media Player.exe
%ALLUSERSPROFILE%\Application Data\Microsoft\Media Index.exe
C:\Documents and Settings\LocalService\Application Data\Microsoft\Credentials.exe
C:\Documents and Settings\LocalService\Application Data\Microsoft.exe
C:\Documents and Settings\LocalService\Application Data.exe
C:\Documents and Settings\LocalService\Application Data\Microsoft\Media Player.exe
C:\Documents and Settings\LocalService\Application Data\Microsoft\Internet Explorer.exe
C:\Documents and Settings\LocalService\Application Data\Microsoft\Credentials\S-1-5-19.exe
C:\Documents and Settings\LocalService.exe
C:\Documents and Settings\Default User\Start Menu\Programs\Accessories\Accessibility.exe
C:\Documents and Settings\Default User\Start Menu\Programs\Accessories.exe
C:\Documents and Settings\Default User\Start Menu\Programs.exe
C:\Documents and Settings\Default User\Templates.exe
C:\Documents and Settings\Default User\Start Menu\Programs\Startup.exe
C:\Documents and Settings\Default User\Start Menu\Programs\Accessories\Entertainment.exe
C:\Documents and Settings\LocalService\Local Settings\Application Data\Microsoft\Credentials.exe
C:\Documents and Settings\LocalService\Local Settings\Application Data\Microsoft.exe
C:\Documents and Settings\LocalService\Local Settings\Application Data.exe
C:\Documents and Settings\LocalService\Local Settings\History.exe
C:\Documents and Settings\LocalService\Local Settings\Application Data\Microsoft\Windows.exe
C:\Documents and Settings\LocalService\Local Settings\Application Data\Microsoft\Credentials\S-1-5-19.exe
C:\Documents and Settings\LocalService\Local Settings.exe
C:\Documents and Settings\LocalService\Application Data\Microsoft\SystemCertificates\My\Certificates.exe
C:\Documents and Settings\LocalService\Application Data\Microsoft\SystemCertificates\My.exe
C:\Documents and Settings\LocalService\Application Data\Microsoft\SystemCertificates.exe
C:\Documents and Settings\LocalService\Cookies.exe
C:\Documents and Settings\LocalService\Application Data\Microsoft\SystemCertificates\My\CTLs.exe
C:\Documents and Settings\LocalService\Application Data\Microsoft\SystemCertificates\My\CRLs.exe
C:\Documents and Settings\Default User\Start Menu.exe
C:\Documents and Settings\Default User\Local Settings\Application Data\Microsoft\Media Player.exe
C:\Documents and Settings\Default User\Local Settings\Application Data\Microsoft.exe
C:\Documents and Settings\Default User\Local Settings\Application Data.exe
C:\Documents and Settings\Default User\Local Settings\History.exe
C:\Documents and Settings\Default User\Local Settings\Application Data\Microsoft\Windows Media\9.0.exe
C:\Documents and Settings\Default User\Local Settings\Application Data\Microsoft\Windows Media.exe
C:\Documents and Settings\Default User\Local Settings.exe
C:\Documents and Settings\Default User\Application Data\Microsoft\SystemCertificates\My\CTLs.exe
C:\Documents and Settings\Default User\Application Data\Microsoft\SystemCertificates\My\CRLs.exe
C:\Documents and Settings\Default User\Application Data\Microsoft\SystemCertificates\My\Certificates.exe
C:\Documents and Settings\Default User\Favorites.exe
C:\Documents and Settings\Default User\Desktop.exe
C:\Documents and Settings\Default User\Cookies.exe
C:\Documents and Settings\Default User\NetHood.exe
C:\Documents and Settings\Default User\My Documents.exe
C:\Documents and Settings\Default User\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ.exe
C:\Documents and Settings\Default User\SendTo.exe
C:\Documents and Settings\Default User\Recent.exe
C:\Documents and Settings\Default User\PrintHood.exe
C:\Documents and Settings\Default User\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H.exe
C:\Documents and Settings\Default User\Local Settings\Temporary Internet Files.exe
C:\Documents and Settings\Default User\Local Settings\Temp.exe
C:\Documents and Settings\Default User\Local Settings\History\History.IE5.exe
C:\Documents and Settings\Default User\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F.exe
C:\Documents and Settings\Default User\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN.exe
C:\Documents and Settings\Default User\Local Settings\Temporary Internet Files\Content.IE5.exe

Sets the 'hidden' attribute to the following files:

%WINDIR%\winlogon.exe
%WINDIR%\Expl0rer.exe

Miscellaneous:

Searches for the following windows:

ClassName: 'ATL:007BF380' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'

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