Trojan.PWS.Webmonier.792

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Dimitri' = '%APPDATA%\Dimitri\Dimitri.exe'
[<HKCU>\Control Panel\Desktop] 'SCRNSAVE.EXE' = '%APPDATA%\Microsoft\Windows\Mortie Sampson.scr'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Dex Lon Graehme' = '%WINDIR%\Dex Lon Graehme.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows] 'AppInit_DLLs' = '%WINDIR%\6e51e47d7fb228fd9b7888a3f04b38a7.dll'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Dimitri' = '<SYSTEM32>\config\systemprofile\Application Data\Dimitri\Dimitri.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Dimitri' = 'C:\Documents and Settings\NetworkService\Application Data\Dimitri\Dimitri.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Dimitri' = 'C:\Documents and Settings\LocalService\Application Data\Dimitri\Dimitri.exe'

Malicious functions:

Creates and executes the following:

%APPDATA%\Dimitri\Dimitri.exe
%APPDATA%\Microsoft\Windows\Mortie Sampson.scr /s
%APPDATA%\Microsoft\Windows\Mortie Sampson.scr

Executes the following:

<SYSTEM32>\cmd.exe /c ""%TEMP%\QNBNV.bat" "
<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Dimitri" /t REG_SZ /d "%APPDATA%\Dimitri\Dimitri.exe" /f
<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Dimitri\Dimitri.exe"
<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Microsoft\Windows\Mortie Sampson.scr"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Microsoft\Windows\Mortie Sampson.scr"
<SYSTEM32>\reg.exe ADD "HKCU\Control Panel\Desktop" /v "SCRNSAVE.EXE" /t REG_SZ /d "%APPDATA%\Microsoft\Windows\Mortie Sampson.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%\Dex Lon Graehme.exe"
<SYSTEM32>\attrib.exe +R +H +S "%WINDIR%\Dex Lon Graehme.exe"
<SYSTEM32>\reg.exe ADD "HKLM\software\microsoft\windows\currentversion\run" /v "Dex Lon Graehme" /t REG_SZ /d "%WINDIR%\Dex Lon Graehme.exe" /f
<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Dimitri"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Dimitri\Dimitri.exe"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Dimitri"
<SYSTEM32>\attrib.exe -R -H -S "%WINDIR%\6e51e47d7fb228fd9b7888a3f04b38a7.dll"
<SYSTEM32>\attrib.exe +R +H +S "%WINDIR%\6e51e47d7fb228fd9b7888a3f04b38a7.dll"
<SYSTEM32>\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows" /v "AppInit_DLLs" /t REG_SZ /d "%WINDIR%\6e51e47d7fb228fd9b7888a3f04b38a7.dll" /f
<SYSTEM32>\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows" /v "LoadAppInit_DLLs" /t REG_DWORD /d 1 /f
<SYSTEM32>\netsh.exe firewall add allowedprogram "%APPDATA%\Dimitri\Dimitri.exe" "winhttpsvc" ENABLE
<SYSTEM32>\netsh.exe advfirewall firewall add rule name="winhttpsvc" profile=public,private,domain dir=in action=allow program="%APPDATA%\Dimitri\Dimitri.exe" enable=yes
<SYSTEM32>\netsh.exe firewall set opmode DISABLE
<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 "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>\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>\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>\reg.exe ADD "HKCR\.zip\ShellNew" /v "FileName" /t REG_SZ /d "<SYSTEM32>\config\systemprofile\Application Data\newzip.dat" /f
<SYSTEM32>\reg.exe ADD "HKCR\.zip\CompressedFolder\ShellNew" /v "FileName" /t REG_SZ /d "<SYSTEM32>\config\systemprofile\Application Data\newzip.dat" /f
<SYSTEM32>\reg.exe ADD "HKCR\.rar\ShellNew" /v "FileName" /t REG_SZ /d "<SYSTEM32>\config\systemprofile\Application Data\newzip.dat" /f
<SYSTEM32>\reg.exe ADD "HKCR\.zip\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f
<SYSTEM32>\reg.exe ADD "HKCR\.zip\ShellNew" /v "FileName" /t REG_SZ /d "C:\Documents and Settings\NetworkService\Application Data\newzip.dat" /f
<SYSTEM32>\reg.exe ADD "HKCR\.zip\ShellNew" /v "FileName" /t REG_SZ /d "C:\Documents and Settings\LocalService\Application Data\newzip.dat" /f
<SYSTEM32>\reg.exe ADD "HKCR\.zip\CompressedFolder\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f
<SYSTEM32>\reg.exe ADD "HKCR\.zip\CompressedFolder\ShellNew" /v "FileName" /t REG_SZ /d "C:\Documents and Settings\NetworkService\Application Data\newzip.dat" /f
<SYSTEM32>\reg.exe ADD "HKCR\.rar\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f
<SYSTEM32>\reg.exe ADD "HKCR\.zip\CompressedFolder\ShellNew" /v "FileName" /t REG_SZ /d "C:\Documents and Settings\LocalService\Application Data\newzip.dat" /f
<SYSTEM32>\reg.exe ADD "HKCR\.rar\ShellNew" /v "FileName" /t REG_SZ /d "C:\Documents and Settings\NetworkService\Application Data\newzip.dat" /f
<SYSTEM32>\reg.exe ADD "HKCR\.rar\ShellNew" /v "FileName" /t REG_SZ /d "C:\Documents and Settings\LocalService\Application Data\newzip.dat" /f

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

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' = '127.0.0.1:22304'
[<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' = '127.0.0.1:21682'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:25304'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:28978'

Modifies file system :

Creates the following files:

%TEMP%\QNBNV.txt
%TEMP%\QNBNV.bat
%APPDATA%\Dimitri\Dimitri.exe
%APPDATA%\Microsoft\Windows\Mortie Sampson.scr
%WINDIR%\Dex Lon Graehme.exe
%APPDATA%\Aguistin.dll
%WINDIR%\6e51e47d7fb228fd9b7888a3f04b38a7.dll
<SYSTEM32>\config\systemprofile\Application Data\newzip.dat
<SYSTEM32>\config\systemprofile\Local Settings\Temporary Internet Files\Content.IE5\6YQRA29M\iililil[1].htm
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\BY56DJ91\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\ZHJTQYJN\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\GXEVW5EV\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\80XHSVNG\desktop.ini
C:\Documents and Settings\NetworkService\Application Data\newzip.dat
%APPDATA%\newzip.dat
C:\Documents and Settings\LocalService\Application Data\newzip.dat
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\BY56DJ91\iililil[1].htm
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\iililil[1].htm
C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\CJCTQ25G\iililil[1].htm

Sets the 'hidden' attribute to the following files:

<Full path to virus>
%APPDATA%\Dimitri\Dimitri.exe
%APPDATA%\Microsoft\Windows\Mortie Sampson.scr
%WINDIR%\Dex Lon Graehme.exe
%WINDIR%\6e51e47d7fb228fd9b7888a3f04b38a7.dll
%APPDATA%\Aguistin.dll
<SYSTEM32>\config\systemprofile\Application Data\newzip.dat
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\BY56DJ91\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\ZHJTQYJN\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\GXEVW5EV\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\80XHSVNG\desktop.ini
C:\Documents and Settings\NetworkService\Application Data\newzip.dat
%APPDATA%\newzip.dat
C:\Documents and Settings\LocalService\Application Data\newzip.dat

Deletes the following files:

%TEMP%\QNBNV.txt
%TEMP%\QNBNV.bat

Network activity:

Connects to:

'ii##lil.in':80
'localhost':22304
'sp###test.net':80
'localhost':21682
'localhost':25304
'localhost':28978
'74.##5.232.51':80

TCP:

HTTP GET requests:

sp###test.net/
74.##5.232.51/

HTTP POST requests:

ii##lil.in/

UDP:

DNS ASK ii##lil.in
DNS ASK sp###test.net
DNS ASK google.com

Miscellaneous:

Searches for the following windows:

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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