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Win32.HLLW.Autoruner1.52478
Added to the Dr.Web virus database:
2013-07-30
Virus description added:
2013-07-31
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'advant' = '<SYSTEM32>\config\systemprofile\Application Data\advant.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'advant' = 'C:\Documents and Settings\NetworkService\Application Data\advant.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'advant' = '%APPDATA%\advant.exe'
[<HKCU>\Control Panel\Desktop] 'SCRNSAVE.EXE' = '%APPDATA%\Microsoft\Windows\rawcircle.scr'
Creates the following services:
[<HKLM>\SYSTEM\ControlSet001\Services\Browser] 'Start' = '00000002'
[<HKLM>\SYSTEM\ControlSet001\Services\SSDPSRV] 'Start' = '00000002'
[<HKLM>\SYSTEM\ControlSet001\Services\upnphost] 'Start' = '00000002'
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
blocks the following features:
User Account Control (UAC)
Creates and executes the following:
'%APPDATA%\Microsoft\Windows\rawcircle.scr' /s
Executes the following:
'<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile" /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\Microsoft\Internet Explorer\Main" /v Show_FullURL /t REG_SZ /d yes /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\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile" /v EnableFirewall /t REG_DWORD /d 0 /f
'<SYSTEM32>\net1.exe' start upnphost
'<SYSTEM32>\sc.exe' config browser start= auto
'<SYSTEM32>\net1.exe' start browser
'<SYSTEM32>\net1.exe' start SSDPSRV
'<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\Internet Explorer\Main" /v Check_Associations /t REG_SZ /d no /f
'<SYSTEM32>\winlogon.exe'
'<SYSTEM32>\rundll32.exe'
'<SYSTEM32>\reg.exe' DELETE "HKCU\AppEvents\Schemes\Apps\Explorer\Navigating\.Default" /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\Main" /v Show_StatusBar /t REG_SZ /d yes /f
'<SYSTEM32>\reg.exe' DELETE "HKCU\AppEvents\Schemes\Apps\Explorer\Navigating\.Current" /f
'<SYSTEM32>\reg.exe' ADD "HKLM\Software\Microsoft\Internet Explorer\MINIE" /v ShowStatusBar /t REG_DWORD /d 1 /f
'<SYSTEM32>\sc.exe' config SSDPSRV start= auto
'<SYSTEM32>\attrib.exe' +R +H +S "%APPDATA%\Microsoft\Windows\rawcircle.scr"
'<SYSTEM32>\attrib.exe' -R -H -S "%APPDATA%\Microsoft\Windows\rawcircle.scr"
'<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 "SCRNSAVE.EXE" /t REG_SZ /d "%APPDATA%\Microsoft\Windows\rawcircle.scr" /f
'<SYSTEM32>\attrib.exe' +R +H +S "<SYSTEM32>\pcclean.exe"
'<SYSTEM32>\attrib.exe' +R +H +S "%APPDATA%\advant.exe"
'<SYSTEM32>\attrib.exe' -R -H -S "%APPDATA%\advant.exe"
'<SYSTEM32>\attrib.exe' -R -H -S "<SYSTEM32>\pcclean.exe"
'<SYSTEM32>\reg.exe' ADD "HKCU\software\microsoft\windows\currentversion\run" /v "advant" /t REG_SZ /d "%APPDATA%\advant.exe" /f
'<SYSTEM32>\reg.exe' DELETE "HKCU\software\microsoft\windows\currentversion\action center\checks" /f
'<SYSTEM32>\reg.exe' ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v EnableBalloonTips /t REG_DWORD /d 0 /f
'<SYSTEM32>\sc.exe' config upnphost start= auto
'<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f
'<SYSTEM32>\net1.exe' START seclogon
'<SYSTEM32>\reg.exe' ADD "HKCR\.zip\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f
'<SYSTEM32>\reg.exe' ADD "HKCU\Control Panel\Desktop" /v ScreenSaveTimeOut /t REG_SZ /d "60" /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 "%APPDATA%\newzip.dat" /f
Injects code into
the following system processes:
<SYSTEM32>\lsass.exe
<SYSTEM32>\services.exe
<SYSTEM32>\spoolsv.exe
<SYSTEM32>\alg.exe
<SYSTEM32>\ctfmon.exe
System
<SYSTEM32>\svchost.exe
<SYSTEM32>\smss.exe
<SYSTEM32>\winlogon.exe
<SYSTEM32>\csrss.exe
a large number of user processes.
Modifies settings of Windows Internet Explorer:
[<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] 'ProxyEnable' = '00000001'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:5220'
Modifies file system :
Creates the following files:
%APPDATA%\5.dat
%APPDATA%\4.dat
%APPDATA%\3.dat
%APPDATA%\moggy.dll
C:\autorun.inf
C:\Documents and Settings\LocalService\Application Data\Microsoft\UPnP Device Host\upnphost\udhisapi.dll
%APPDATA%\newzip.dat
%APPDATA%\2.dat
%APPDATA%\advant.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\ver[1].php
<SYSTEM32>\pcclean.exe
%APPDATA%\1.dat
%APPDATA%\0.dat
%APPDATA%\Microsoft\Windows\rawcircle.scr
Sets the 'hidden' attribute to the following files:
%APPDATA%\2.dat
%APPDATA%\1.dat
%APPDATA%\3.dat
%APPDATA%\5.dat
%APPDATA%\4.dat
%APPDATA%\0.dat
<SYSTEM32>\pcclean.exe
%APPDATA%\advant.exe
%APPDATA%\Microsoft\Windows\rawcircle.scr
%APPDATA%\newzip.dat
%APPDATA%\moggy.dll
Miscellaneous:
Searches for the following windows:
ClassName: '(null)' WindowName: 'Registry'
ClassName: '(null)' WindowName: 'Registry Editor'
ClassName: '(null)' WindowName: 'System Restore'
ClassName: '(null)' WindowName: 'System Configuration'
ClassName: '(null)' WindowName: 'RegCool'
ClassName: '(null)' WindowName: 'RegAlyzer'
ClassName: 'ReBarWindow32' WindowName: ''
ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'Type32_Main_Window' WindowName: '(null)'
ClassName: '' WindowName: '(null)'
ClassName: 'WMP9DeskBand' WindowName: 'WMP9DeskBand'
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