Win32.HLLW.Autoruner.54746

Added to the Dr.Web virus database: 2011-07-21

Virus description added: 2011-07-21

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows SafeAssist' = '%APPDATA%\winlogon.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows SafeAssist' = '%APPDATA%\winlogon.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Serivces' = '%APPDATA%\Microsoft\#sys32.exe'

Creates the following files on removable media:

Malicious functions:

Creates and executes the following:

Executes the following:

<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Windows Serivces" /t REG_SZ /d "%APPDATA%\Microsoft\#sys32.exe" /f
<SYSTEM32>\cmd.exe /c """%TEMP%\SonNr.bat"" "

Injects code into

the following system processes:

Modifies file system :

Creates the following files:

Sets the 'hidden' attribute to the following files:

Deletes the following files:

Network activity:

Connects to:

UDP:

Miscellaneous:

Searches for the following windows: