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Win32.HLLW.Autoruner.28345
Added to the Dr.Web virus database:
2010-09-13
Virus description added:
2012-11-20
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HOYHOWFzHK4' = '%TEMP%\DIhl9.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Update System' = '%APPDATA%\winlogon.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Update System' = '%APPDATA%\winlogon.exe'
[<HKCU>\Software\Microsoft\Active Setup\Installed Components\{YO1A3AVR-P8QI-QLOV-Q3UH-4SYZA4FBXBRB}] 'StubPath' = '%TEMP%\DIhl9.exe'
[<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{YO1A3AVR-P8QI-QLOV-Q3UH-4SYZA4FBXBRB}] 'StubPath' = '%TEMP%\DIhl9.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'xYw6n7QaK8VAE' = '%TEMP%\DIhl9.exe'
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\GGGKGKGAEXRGYH\DFG-2352-26235-2322322-624621221-2622255\usbBlock.exe
<Drive name for removable media>:\GGGKGKGAEXRGYH\DFG-2352-26235-2322322-624621221-2622255\Desktop.ini
Malicious functions:
Creates and executes the following:
Executes the following:
<SYSTEM32>\cmd.exe /c ""%TEMP%\MQKG.bat" "
Modifies file system :
Creates the following files:
%TEMP%\DIhl9.exe
%TEMP%\google_cache2.tmp
%TEMP%\MQKG.bat
%APPDATA%\winlogon.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\GGGKGKGAEXRGYH\DFG-2352-26235-2322322-624621221-2622255\usbBlock.exe
%TEMP%\DIhl9.exe
%APPDATA%\winlogon.exe
Network activity:
Connects to:
'il#####obiia.no-ip.info':6667
UDP:
DNS ASK il#####obiia.no-ip.info
Miscellaneous:
Searches for the following windows:
ClassName: '' WindowName: 'BitDefender Firewall Alert'
ClassName: '' WindowName: 'Windows Security Alert'
ClassName: 'Indicator' WindowName: ''
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