Win32.HLLW.Autoruner1.11672

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Server' = '<SYSTEM32>\Server.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Server' = '<SYSTEM32>\Server.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'wuaclt.exe' = '%WINDIR%\14785\SYSTEMSHELL.exe'

Creates the following files on removable media:

Malicious functions:

To bypass firewall, removes or modifies the following registry keys:

[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<LS_APPDATA>\server.exe' = '<LS_APPDATA>\server.exe:*:Enabled:svchost'

To complicate detection of its presence in the operating system,

forces the system hide from view:

blocks execution of the following system utilities:

Creates and executes the following:

Executes the following:

<SYSTEM32>\attrib.exe +S +H +R "F:\autorun.inf"
<SYSTEM32>\attrib.exe +S +H +R "G:\autorun.inf"
<SYSTEM32>\attrib.exe +S +H +R "J:\1044404.EXE"
<SYSTEM32>\attrib.exe +S +H +R "E:\autorun.inf"
<SYSTEM32>\attrib.exe +S +H +R "J:\autorun.inf"
<SYSTEM32>\ping.exe 127.0.0.1 -n 60
<SYSTEM32>\attrib.exe +S +H +R "H:\autorun.inf"
<SYSTEM32>\attrib.exe +S +H +R "I:\autorun.inf"
<SYSTEM32>\attrib.exe +S +H +R "I:\1044404.EXE"
<SYSTEM32>\netsh.exe firewall add allowedprogram <LS_APPDATA>\server.exe svchost ENABLE ALL
<SYSTEM32>\reg.exe ADD HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\NOHIDDEN /v CheckedValue /t REG_DWORD /d "2" /f
<SYSTEM32>\reg.exe ADD HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v wuaclt.exe /t REG_SZ /d "%WINDIR%\14785\SYSTEMSHELL.exe" /f
<SYSTEM32>\reg.exe ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d "1" /f
<SYSTEM32>\attrib.exe +S +H +R "G:\1044404.EXE"
<SYSTEM32>\attrib.exe +S +H +R "H:\1044404.EXE"
<SYSTEM32>\attrib.exe +S +H +R "E:\1044404.EXE"
<SYSTEM32>\attrib.exe +S +H +R "F:\1044404.EXE"

Modifies file system :

Creates the following files:

Sets the 'hidden' attribute to the following files:

Network activity:

Connects to:

UDP:

Miscellaneous:

Searches for the following windows: