Trojan.PWS.Webmonier.798

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '900' = '<Full path to virus>'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '5nk' = '<Full path to virus>'
[<HKCU>\Control Panel\Desktop] 'SCRNSAVE.EXE' = '%APPDATA%\Microsoft\Windows\Mikey Gottfried.scr'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Alejoa' = '%WINDIR%\Alejoa.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Akim' = '%APPDATA%\Akim\Akim.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Llywellyn' = 'cmd.exe /c %APPDATA%\Llywellyn\Llywellyn.Llywellyn'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Terri' = 'cmd.exe /c %WINDIR%\Terri.Terri'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows] 'AppInit_DLLs' = '%WINDIR%\41921006293454b96481ae5f90480a35.dll'

Malicious functions:

Creates and executes the following:

%APPDATA%\Microsoft\Windows\Mikey Gottfried.scr /s

Executes the following:

<SYSTEM32>\reg.exe ADD "HKCU\software\microsoft\windows\currentversion\run" /v "900" /t REG_SZ /d "<Full path to virus>" /f
<SYSTEM32>\reg.exe ADD "HKLM\software\microsoft\windows\currentversion\run" /v "5nk" /t REG_SZ /d "<Full path to virus>" /f
<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Microsoft\Windows\Mikey Gottfried.scr"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Microsoft\Windows\Mikey Gottfried.scr"
<SYSTEM32>\reg.exe ADD "HKCU\Control Panel\Desktop" /v "SCRNSAVE.EXE" /t REG_SZ /d "%APPDATA%\Microsoft\Windows\Mikey Gottfried.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%\Alejoa.exe"
<SYSTEM32>\attrib.exe +R +H +S "%WINDIR%\Alejoa.exe"
<SYSTEM32>\reg.exe ADD "HKLM\software\microsoft\windows\currentversion\run" /v "Alejoa" /t REG_SZ /d "%WINDIR%\Alejoa.exe" /f
<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Akim"
<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Akim\Akim.exe"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Akim\Akim.exe"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Akim"
<SYSTEM32>\reg.exe ADD "HKCU\software\microsoft\windows\currentversion\run" /v "Akim" /t REG_SZ /d "%APPDATA%\Akim\Akim.exe" /f
<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Llywellyn"
<SYSTEM32>\attrib.exe -R -H -S "%APPDATA%\Llywellyn\Llywellyn.Llywellyn"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Llywellyn\Llywellyn.Llywellyn"
<SYSTEM32>\attrib.exe +R +H +S "%APPDATA%\Llywellyn"
<SYSTEM32>\reg.exe ADD "HKCU\software\microsoft\windows\currentversion\run" /v "Llywellyn" /t REG_SZ /d "cmd.exe /c %APPDATA%\Llywellyn\Llywellyn.Llywellyn" /f
<SYSTEM32>\attrib.exe -R -H -S "%WINDIR%\Terri.Terri"
<SYSTEM32>\attrib.exe +R +H +S "%WINDIR%\Terri.Terri"
<SYSTEM32>\reg.exe ADD "HKLM\software\microsoft\windows\currentversion\run" /v "Terri" /t REG_SZ /d "cmd.exe /c %WINDIR%\Terri.Terri" /f
<SYSTEM32>\attrib.exe -R -H -S "%WINDIR%\41921006293454b96481ae5f90480a35.dll"
<SYSTEM32>\attrib.exe +R +H +S "%WINDIR%\41921006293454b96481ae5f90480a35.dll"
<SYSTEM32>\reg.exe ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows" /v "AppInit_DLLs" /t REG_SZ /d "%WINDIR%\41921006293454b96481ae5f90480a35.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 "<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>\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 "HKCU\software\microsoft\windows\currentversion\run" /v "FcaHX" /t REG_SZ /d "%APPDATA%\Microsoft\Windows\Mikey Gottfried.scr" /f
<SYSTEM32>\reg.exe ADD "HKLM\software\microsoft\windows\currentversion\run" /v "FV1" /t REG_SZ /d "%APPDATA%\Microsoft\Windows\Mikey Gottfried.scr" /f
<SYSTEM32>\sc.exe /c attrib -R -H -S "%windir%\41921006293454b96481ae5f90480a35.dll"
<SYSTEM32>\reg.exe /c reg ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows" /v "LoadAppInit_DLLs" /t REG_DWORD /d 1 /f

Injects code into

the following system processes:

<SYSTEM32>\svchost.exe
<SYSTEM32>\csrss.exe
<SYSTEM32>\smss.exe
<SYSTEM32>\winlogon.exe
<SYSTEM32>\services.exe
<SYSTEM32>\lsass.exe
<SYSTEM32>\spoolsv.exe
<SYSTEM32>\alg.exe
<SYSTEM32>\ctfmon.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' = '127.0.0.1:28183'
[<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' = '127.0.0.1:1475'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:966'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:18162'

Modifies file system :

Creates the following files:

%APPDATA%\Microsoft\Windows\Mikey Gottfried.scr
%WINDIR%\Alejoa.exe
%APPDATA%\Akim\Akim.exe
%APPDATA%\Llywellyn\Llywellyn.Llywellyn
%WINDIR%\Terri.Terri
%APPDATA%\Daron.dll
%WINDIR%\41921006293454b96481ae5f90480a35.dll
<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\IJ630BS1\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\89O7CDSF\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\SA2019OO\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\23Q567QR\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\IJ630BS1\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%\Llywellyn\Llywellyn.Llywellyn
<SYSTEM32>\%appdata%\Akim\Akim.exe
<SYSTEM32>\%appdata%\Microsoft\Windows\Mikey Gottfried.scr

Sets the 'hidden' attribute to the following files:

%APPDATA%\Microsoft\Windows\Mikey Gottfried.scr
%WINDIR%\Alejoa.exe
%APPDATA%\Akim\Akim.exe
%APPDATA%\Llywellyn\Llywellyn.Llywellyn
%WINDIR%\Terri.Terri
%WINDIR%\41921006293454b96481ae5f90480a35.dll
%APPDATA%\Daron.dll
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\IJ630BS1\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\89O7CDSF\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\SA2019OO\desktop.ini
C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\23Q567QR\desktop.ini
<SYSTEM32>\%appdata%\Llywellyn\Llywellyn.Llywellyn
<SYSTEM32>\%appdata%\Akim\Akim.exe
<SYSTEM32>\%appdata%\Microsoft\Windows\Mikey Gottfried.scr

Deletes the following files:

%APPDATA%\Daron.dll

Network activity:

Connects to:

'localhost':28183
'sp###test.net':80
'il##li.in':80
'localhost':966
'localhost':1475
'localhost':18162

TCP:

HTTP GET requests:

sp###test.net/

HTTP POST requests:

il##li.in/

UDP:

DNS ASK sp###test.net
DNS ASK il##li.in
'23#.#55.255.250':1900

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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