Win32.HLLW.Autoruner.51591
Added to the Dr.Web virus database:
2011-06-10
Virus description added:
2011-06-14
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WindowsUpdate' = '%APPDATA%\msconfig.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'WindowsUpdate' = '%APPDATA%\msconfig.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft® Windows® Operating System' = '%APPDATA%\Microsoft\Protect\Credentials'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\DFGDFJJJJDFJDFJGFDJTURTURUTJJF\DFG-2352-26235-2322322-624621221-2622255\usbBlock.exe
- <Drive name for removable media>:\DFGDFJJJJDFJDFJGFDJTURTURUTJJF\DFG-2352-26235-2322322-624621221-2622255\Desktop.ini
Malicious functions:
Creates and executes the following:
- %APPDATA%\Microsoft\Protect\Credentials\wmpnetvk.exe
- %APPDATA%\Microsoft\Protect\Credentials\taskhostt.exe
- %APPDATA%\msconfig.exe
Modifies file system :
Creates the following files:
- %APPDATA%\msconfig.exe
- %TEMP%\google_cache2.tmp
- %APPDATA%\Microsoft\Protect\Credentials\taskhostt.exe
- %APPDATA%\Microsoft\Protect\Credentials\wmpnetvk.exe
- %APPDATA%\Microsoft\Protect\Credentials\wmpnetvk.exe:ZONE.identifier
Sets the 'hidden' attribute to the following files:
- %APPDATA%\Microsoft\Protect\Credentials\taskhostt.exe
- <Drive name for removable media>:\DFGDFJJJJDFJDFJGFDJTURTURUTJJF\DFG-2352-26235-2322322-624621221-2622255\usbBlock.exe
- %APPDATA%\Microsoft\Protect\Credentials\wmpnetvk.exe
- %APPDATA%\msconfig.exe
Network activity:
Connects to:
- 'ir#.##et12.cjb.net':4244
UDP:
- DNS ASK ir#.##et12.cjb.net
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: 'BitDefender Firewall Alert'
- ClassName: '' WindowName: 'Windows Security Alert'
- ClassName: 'Indicator' WindowName: ''
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