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Win32.HLLW.Autoruner1.63171
Added to the Dr.Web virus database:
2013-12-17
Virus description added:
2013-12-21
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '<Virus name>.exe' = '<Full path to virus>'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '5cd8f17f4086744065eb0992a09e05a2' = '"%TEMP%\Trojan.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '5cd8f17f4086744065eb0992a09e05a2' = '"%TEMP%\Trojan.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\5cd8f17f4086744065eb0992a09e05a2.exe
Creates the following files on removable media:
<Drive name for removable media>:\5cd8f17f4086744065eb0992a09e05a2.exe
<Drive name for removable media>:\firefox.exe.lnk
<Drive name for removable media>:\5cd8f17f4086744065eb0992a09e05a2.exe.lnk
<Drive name for removable media>:\viruz.exe.lnk
<Drive name for removable media>:\firefox.exe
<Drive name for removable media>:\viruz.exe
<Drive name for removable media>:\autorun.inf.lnk
<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] 'DoNotAllowExceptions' = '00000000'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Trojan.exe' = '%TEMP%\Trojan.exe:*:Enabled:Trojan.exe'
To complicate detection of its presence in the operating system,
forces the system hide from view:
blocks execution of the following system utilities:
Windows Task Manager (Taskmgr)
Registry Editor (RegEdit)
Creates and executes the following:
'%TEMP%\Trojan.exe'
'%TEMP%\Server.exe'
Executes the following:
'<SYSTEM32>\netsh.exe' firewall set opmode disable
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Trojan.exe" "Trojan.exe" ENABLE
Modifies file system :
Creates the following files:
%HOMEPATH%\My Documents\Downloads\Windows Media Player.exe
%HOMEPATH%\My Documents\Downloads\Windows NT.exe
%HOMEPATH%\My Documents\Downloads\WindowsUpdate.exe
%HOMEPATH%\My Documents\Downloads\Outlook Express.exe
%HOMEPATH%\My Documents\Downloads\Reference Assemblies.exe
%HOMEPATH%\My Documents\Downloads\Uninstall Information.exe
%HOMEPATH%\My Documents\Downloads\xerox.exe
\Device\LanmanRedirector\CRNJEUFU\Program Settings\winadmin-setup.exe
C:\Program Settings\winadmin-setup.exe
%TEMP%\WinSetup.scr
C:\firefox.exe
C:\autorun.inf
%TEMP%\Trojan.exe
%HOMEPATH%\My Documents\Downloads\Online Services.exe
%HOMEPATH%\My Documents\Downloads\FireFox.exe
%HOMEPATH%\My Documents\Downloads\Internet Explorer.exe
%HOMEPATH%\My Documents\Downloads\Messenger.exe
%TEMP%\Server.exe
%HOMEPATH%\My Documents\Downloads\Common Files.exe
%HOMEPATH%\My Documents\Downloads\ComPlus Applications.exe
%HOMEPATH%\My Documents\Downloads\microsoft frontpage.exe
%HOMEPATH%\My Documents\Downloads\MSN.exe
%HOMEPATH%\My Documents\Downloads\MSN Gaming Zone.exe
%HOMEPATH%\My Documents\Downloads\NetMeeting.exe
%HOMEPATH%\My Documents\Downloads\Microsoft.NET.exe
%HOMEPATH%\My Documents\Downloads\Movie Maker.exe
%HOMEPATH%\My Documents\Downloads\MSBuild.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\5cd8f17f4086744065eb0992a09e05a2.exe
<Drive name for removable media>:\firefox.exe
<Full path to virus>
%TEMP%\WinSetup.scr
C:\autorun.inf
<Drive name for removable media>:\viruz.exe
<Drive name for removable media>:\autorun.inf
C:\firefox.exe
Deletes the following files:
<Drive name for removable media>:\5cd8f17f4086744065eb0992a09e05a2.exe.lnk
<Drive name for removable media>:\firefox.exe.lnk
<Drive name for removable media>:\autorun.inf.lnk
Network activity:
Connects to:
're#####ee14.no-ip.biz':1177
'localhost':445
UDP:
DNS ASK re#####ee14.no-ip.biz
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
ClassName: 'Indicator' WindowName: '(null)'
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