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Win32.HLLW.Autoruner.55886
Added to the Dr.Web virus database:
2011-08-09
Virus description added:
2011-08-09
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WindowsUpdaterzz' = '%APPDATA%\zzbrenkzz.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'WindowsUpdaterzz' = '%APPDATA%\zzbrenkzz.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ExploreWindows' = '%APPDATA%\WindowsExplorer\explorer.exe'
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\JHDGYUFRTYQWWEFGBHFHJBGFRJGHRJKGKIOHKIHJ\DFG-1198-78912-8798523-567356432-5783512\jghhggteh.exe
<Drive name for removable media>:\JHDGYUFRTYQWWEFGBHFHJBGFRJGHRJKGKIOHKIHJ\DFG-1198-78912-8798523-567356432-5783512\Desktop.ini
Malicious functions:
Creates and executes the following:
%APPDATA%\zzbrenkzz.exe
%APPDATA%\WindowsExplorer\explorer.exe
Executes the following:
<SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "ExploreWindows" /t REG_SZ /d "%APPDATA%\WindowsExplorer\explorer.exe" /f
<SYSTEM32>\cmd.exe /c """%TEMP%\kHXdG.bat"" "
Modifies file system :
Creates the following files:
%APPDATA%\zzbrenkzz.exe
%TEMP%\google_cache2.tmp
%TEMP%\kHXdG.bat
%APPDATA%\WindowsExplorer\explorer.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\JHDGYUFRTYQWWEFGBHFHJBGFRJGHRJKGKIOHKIHJ\DFG-1198-78912-8798523-567356432-5783512\jghhggteh.exe
%APPDATA%\zzbrenkzz.exe
%APPDATA%\WindowsExplorer\explorer.exe
Deletes the following files:
Network activity:
Connects to:
'me#####571.dyndns.org':26745
UDP:
DNS ASK me#####571.dyndns.org
Miscellaneous:
Searches for the following windows:
ClassName: '' WindowName: 'BitDefender Firewall Alert'
ClassName: '' WindowName: 'Windows Security Alert'
ClassName: 'Indicator' WindowName: ''
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