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Win32.HLLW.Autoruner2.5137
Added to the Dr.Web virus database:
2014-02-04
Virus description added:
2014-02-05
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'cf97ed7b5bfcefb66bc647680b56280b' = '"%TEMP%\Program.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cf97ed7b5bfcefb66bc647680b56280b' = '"%TEMP%\Program.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\cf97ed7b5bfcefb66bc647680b56280b.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Program.exe' = '%TEMP%\Program.exe:*:Enabled:Program.exe'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\wscript.exe' = '<SYSTEM32>\wscript.exe:*:Enabled:wscript.exe'
To complicate detection of its presence in the operating system,
blocks the following features:
User Account Control (UAC)
Creates and executes the following:
Executes the following:
'<SYSTEM32>\wscript.exe' "%TEMP%\Program.vbe"
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "<SYSTEM32>\wscript.exe" "wscript.exe" ENABLE
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Program.exe" "Program.exe" ENABLE
Modifies file system :
Creates the following files:
%TEMP%\Program.vbe
%TEMP%\Program.exe
Deletes the following files:
Network activity:
Connects to:
UDP:
DNS ASK sa####5.no-ip.org
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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