Trojan.PWS.Webmonier.832

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Control Panel\Desktop] 'SCRNSAVE.EXE' = '%APPDATA%\Microsoft\Windows\Jedd Hazel.scr'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Ingar Laurence' = '%WINDIR%\Ingar Laurence.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Hunfredo' = '%APPDATA%\Hunfredo\Hunfredo.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Percival' = 'cmd.exe /c %APPDATA%\Percival\Percival.Percival'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Maison' = 'cmd.exe /c %WINDIR%\Maison.Maison'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows] 'AppInit_DLLs' = '%WINDIR%\9dd29b2546a08fa71f8ebe3b10fb8175.dll'

Malicious functions:

Creates and executes the following:

%APPDATA%\Microsoft\Windows\Jedd Hazel.scr /s

Executes the following:

<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Microsoft\Windows\Jedd Hazel.scr"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Microsoft\Windows\Jedd Hazel.scr"
<SYSTEM32>\reg.exe ADD "HKCU\Control Panel\Desktop" /v "SCRNSAVE.EXE" /t REG_SZ /d "%APPDATA%\Microsoft\Windows\Jedd Hazel.scr" /f
<SYSTEM32>\reg.exe ADD "HKCU\Control Panel\Desktop" /v ScreenSaveActive /t REG_SZ /d "1" /f
<SYSTEM32>\reg.exe ADD "HKCU\Control Panel\Desktop" /v ScreenSaveTimeOut /t REG_SZ /d "60" /f
<SYSTEM32>\attrib.exe -R -H -S "%WINDIR%\Ingar Laurence.exe"
<SYSTEM32>\attrib.exe +R +H +S "%WINDIR%\Ingar Laurence.exe"
<SYSTEM32>\reg.exe ADD "HKLM\software\microsoft\windows\currentversion\run" /v "Ingar Laurence" /t REG_SZ /d "%WINDIR%\Ingar Laurence.exe" /f
<SYSTEM32>\attrib.exe -R -H -S "%WINDIR%\Georg"
<SYSTEM32>\attrib.exe -R -H -S "%WINDIR%\Georg\Georg.exe"
<SYSTEM32>\attrib.exe +R +H +S "%WINDIR%\Georg\Georg.exe"
<SYSTEM32>\attrib.exe +R +H +S "%WINDIR%\Georg"
<SYSTEM32>\sc.exe create "Georg" binPath= "%WINDIR%\Georg\Georg.exe" start= auto DisplayName= "Maison" description= "Ingar Laurence"
<SYSTEM32>\sc.exe start "Maison"
<SYSTEM32>\attrib.exe -R -H -S "%WINDIR%\Noble"
<SYSTEM32>\attrib.exe -R -H -S "%WINDIR%\Noble\Noble.exe"
<SYSTEM32>\attrib.exe +R +H +S "%WINDIR%\Noble\Noble.exe"
<SYSTEM32>\attrib.exe +R +H +S "%WINDIR%\Noble"
<SYSTEM32>\schtasks.exe /create /F /RL HIGHEST /tn "Noble" /tr "<Full path to virus>" /sc onlogon
<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Hunfredo"
<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Hunfredo\Hunfredo.exe"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Hunfredo\Hunfredo.exe"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Hunfredo"
<SYSTEM32>\reg.exe ADD "HKCU\software\microsoft\windows\currentversion\run" /v "Hunfredo" /t REG_SZ /d "%APPDATA%\Hunfredo\Hunfredo.exe" /f
<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Percival"
<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Percival\Percival.Percival"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Percival\Percival.Percival"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Percival"
<SYSTEM32>\reg.exe ADD "HKCU\software\microsoft\windows\currentversion\run" /v "Percival" /t REG_SZ /d "cmd.exe /c %APPDATA%\Percival\Percival.Percival" /f
<SYSTEM32>\attrib.exe -R -H -S "%WINDIR%\Maison.Maison"
<SYSTEM32>\attrib.exe +R +H +S "%WINDIR%\Maison.Maison"
<SYSTEM32>\reg.exe ADD "HKLM\software\microsoft\windows\currentversion\run" /v "Maison" /t REG_SZ /d "cmd.exe /c %WINDIR%\Maison.Maison" /f
<SYSTEM32>\attrib.exe -R -H -S "%WINDIR%\9dd29b2546a08fa71f8ebe3b10fb8175.dll"
<SYSTEM32>\attrib.exe +R +H +S "%WINDIR%\9dd29b2546a08fa71f8ebe3b10fb8175.dll"
<SYSTEM32>\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows" /v "AppInit_DLLs" /t REG_SZ /d "%WINDIR%\9dd29b2546a08fa71f8ebe3b10fb8175.dll" /f
<SYSTEM32>\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows" /v "LoadAppInit_DLLs" /t REG_DWORD /d 1 /f
<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v EnableBalloonTips /t REG_DWORD /d 0 /f
<SYSTEM32>\reg.exe DELETE "HKCU\software\microsoft\windows\currentversion\action center\checks" /f
<SYSTEM32>\netsh.exe firewall add allowedprogram "<Full path to virus>" "winhttpsvc" ENABLE
<SYSTEM32>\netsh.exe advfirewall firewall add rule name="winhttpsvc" profile=public,private,domain dir=in action=allow program="<Full path to virus>" enable=yes
<SYSTEM32>\sc.exe create "Jedd Hazel" binPath= "<Full path to virus>" start= auto DisplayName= "Maison" description= "Ingar Laurence"
<SYSTEM32>\schtasks.exe /create /F /RL HIGHEST /tn "Ingar Laurence" /tr "<Full path to virus>" /sc onlogon
<SYSTEM32>\netsh.exe firewall set opmode DISABLE
<SYSTEM32>\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f
<SYSTEM32>\reg.exe ADD "HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile" /v EnableFirewall /t REG_DWORD /d 0 /f
<SYSTEM32>\reg.exe ADD "HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile" /v EnableFirewall /t REG_DWORD /d 0 /f
<SYSTEM32>\reg.exe ADD "HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile" /v EnableFirewall /t REG_DWORD /d 0 /f
<SYSTEM32>\sc.exe config upnphost start= auto
<SYSTEM32>\sc.exe config SSDPSRV start= auto
<SYSTEM32>\sc.exe config browser start= auto
<SYSTEM32>\reg.exe ADD "HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl" /v FEATURE_WEBOC_POPUPMANAGEMENT /t REG_DWORD /d 0 /f
<SYSTEM32>\reg.exe ADD "HKLM\Software\Microsoft\Internet Explorer\Main" /v Show_FullURL /t REG_SZ /d yes /f
<SYSTEM32>\reg.exe ADD "HKLM\Software\Microsoft\Internet Explorer\Main" /v Show_StatusBar /t REG_SZ /d yes /f
<SYSTEM32>\reg.exe ADD "HKLM\Software\Microsoft\Internet Explorer\Main" /v Show_URLinStatusBar /t REG_SZ /d yes /f
<SYSTEM32>\reg.exe ADD "HKLM\Software\Microsoft\Internet Explorer\MINIE" /v ShowStatusBar /t REG_DWORD /d 1 /f
<SYSTEM32>\reg.exe DELETE "HKCU\AppEvents\Schemes\Apps\Explorer\Navigating\.Current" /f
<SYSTEM32>\reg.exe DELETE "HKCU\AppEvents\Schemes\Apps\Explorer\Navigating\.Default" /f
<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v Check_Associations /t REG_SZ /d no /f
<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v "DisableFirstRunCustomize" /t REG_DWORD /d "1" /f
<SYSTEM32>\schtasks.exe /create /F /RL HIGHEST /tn "Noble" /tr "%APPDATA%\Microsoft\Windows\Jedd Hazel.scr" /sc onlogon
<SYSTEM32>\sc.exe ADD "HKCU\software\microsoft\windows\currentversion\run" /v "Hunfredo" /t REG_SZ /d "%appdata%\Hunfredo\Hunfredo.exe" /f
<SYSTEM32>\sc.exe -R -H -S "%WINDIR%\Ingar Laurence.exe"
<SYSTEM32>\reg.exe /c copy /y "%WINDIR%\Ingar Laurence.exe" "%appdata%\Percival\Percival.Percival"

Injects code into

the following system processes:

<SYSTEM32>\svchost.exe
<SYSTEM32>\smss.exe
<SYSTEM32>\csrss.exe
<SYSTEM32>\winlogon.exe
<SYSTEM32>\services.exe
<SYSTEM32>\lsass.exe
<SYSTEM32>\spoolsv.exe
<SYSTEM32>\ctfmon.exe
<SYSTEM32>\alg.exe
<SYSTEM32>\cscript.exe
<SYSTEM32>\schtasks.exe
<SYSTEM32>\sc.exe
<SYSTEM32>\reg.exe

a large number of user processes.

Terminates or attempts to terminate

the following user processes:

WebMoney.exe

a large number of user processes.

Modifies settings of Windows Internet Explorer:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:20967'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyOverride' = 'local'
[<HKLM>\SYSTEM\ControlSet001\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:26622'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:29427'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:11407'

Modifies file system :

Creates the following files:

%APPDATA%\Microsoft\Windows\Jedd Hazel.scr
%WINDIR%\Ingar Laurence.exe
%WINDIR%\Georg\Georg.exe
%WINDIR%\Noble\Noble.exe
%APPDATA%\Hunfredo\Hunfredo.exe
%APPDATA%\Percival\Percival.Percival
%WINDIR%\Maison.Maison
%APPDATA%\Gaile.dll
%WINDIR%\9dd29b2546a08fa71f8ebe3b10fb8175.dll
%APPDATA%\9dd29b2546a08fa71f8ebe3b10fb8175.RYV22y5d
<SYSTEM32>\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\6YQRA29M\illili[1].htm
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\812Z4TQ7\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\8CAMJHER\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\5ZFYDQRS\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\WB8X23WF\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\812Z4TQ7\illili[1].htm
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\illili[1].htm
C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\CJCTQ25G\illili[1].htm
<SYSTEM32>\%appdata%\Percival\Percival.Percival

Sets the 'hidden' attribute to the following files:

%APPDATA%\Microsoft\Windows\Jedd Hazel.scr
%WINDIR%\Ingar Laurence.exe
%WINDIR%\Georg\Georg.exe
%WINDIR%\Noble\Noble.exe
%APPDATA%\Hunfredo\Hunfredo.exe
%APPDATA%\Percival\Percival.Percival
%WINDIR%\Maison.Maison
%WINDIR%\9dd29b2546a08fa71f8ebe3b10fb8175.dll
%APPDATA%\Gaile.dll
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\812Z4TQ7\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\8CAMJHER\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\5ZFYDQRS\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\WB8X23WF\desktop.ini
<SYSTEM32>\%appdata%\Percival\Percival.Percival

Network activity:

Connects to:

'localhost':20967
'il##li.in':80
'sp###test.net':80
'localhost':26622
'localhost':29427
'localhost':11407

TCP:

HTTP GET requests:

sp###test.net/

HTTP POST requests:

il##li.in/

UDP:

DNS ASK il##li.in
DNS ASK sp###test.net

Miscellaneous:

Searches for the following windows:

ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: 'Indicator' WindowName: ''
ClassName: '' WindowName: 'System Restore'
ClassName: '' WindowName: 'Registry Editor'
ClassName: '' WindowName: 'Registry'
ClassName: '' WindowName: 'RegAlyzer'
ClassName: '' WindowName: 'RegCool'
ClassName: '' WindowName: 'System Configuration'
ClassName: '' WindowName: 'Windows Task Manager'

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