Win32.HLLW.Autoruner1.55080
Added to the Dr.Web virus database:
2013-08-31
Virus description added:
2013-09-01
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'shell' = '%SystemRoot%\system32\user32.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\md.exe
Malicious functions:
Executes the following:
- '<SYSTEM32>\taskkill.exe' /pid=5680
- '<SYSTEM32>\taskkill.exe' /pid=6012
- '<SYSTEM32>\taskkill.exe' /c taskkill /im narrator.exe /f
- '<SYSTEM32>\taskkill.exe' /pid=5540
- '<SYSTEM32>\taskkill.exe' /pid=2944
- '<SYSTEM32>\taskkill.exe' /pid=2548
- '<SYSTEM32>\taskkill.exe' /pid=5880
- '<SYSTEM32>\taskkill.exe' /pid=5764
- '<SYSTEM32>\taskkill.exe' /pid=172
- '<SYSTEM32>\taskkill.exe' /pid=3988
- '<SYSTEM32>\taskkill.exe' /pid=4540
- '<SYSTEM32>\taskkill.exe' /pid=6132
- '<SYSTEM32>\taskkill.exe' /pid=5864
- '<SYSTEM32>\taskkill.exe' /pid=5944
- '<SYSTEM32>\taskkill.exe' /pid=5988
- '<SYSTEM32>\taskkill.exe' /pid=3912
- '<SYSTEM32>\taskkill.exe' /im regedit.exe /f
- '<SYSTEM32>\taskkill.exe' /c taskkill /im regedit.exe /f
- '<SYSTEM32>\taskkill.exe' /c taskkill /im utilman.exe /f
- '<SYSTEM32>\taskkill.exe' /im taskmgr.exe /f
- '<SYSTEM32>\taskkill.exe' /im sethc.exe /f
- '<SYSTEM32>\taskkill.exe' /im utilman.exe /f
- '<SYSTEM32>\taskkill.exe' /im narrator.exe /f
- '<SYSTEM32>\taskkill.exe' /pid=1140
- '<SYSTEM32>\taskkill.exe' /pid=3716
- '<SYSTEM32>\taskkill.exe' /pid=3444
- '<SYSTEM32>\taskkill.exe' /pid=328
- '<SYSTEM32>\taskkill.exe' /pid=3356
- '<SYSTEM32>\taskkill.exe' /pid=2940
- '<SYSTEM32>\taskkill.exe' /c taskkill /im taskmgr.exe /f
- '<SYSTEM32>\taskkill.exe' /c taskkill /im sethc.exe /f
Injects code into
the following system processes:
- <SYSTEM32>\taskkill.exe
- <SYSTEM32>\cmd.exe
Modifies file system :
Creates the following files:
- <SYSTEM32>\user32.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\s[1].gif
- %WINDIR%\Debug\UserMode\explorer.exe
- %WINDIR%\Debug\sys.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\md.exe
Network activity:
Connects to:
- 'tr####ert55.t35.com':80
- 'localhost':1037
TCP:
HTTP GET requests:
- tr####ert55.t35.com/sniffer/s.gif?<<####################################
UDP:
- DNS ASK tr####ert55.t35.com
Miscellaneous:
Searches for the following windows:
- ClassName: '(null)' WindowName: '(null)'
- ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
- ClassName: 'MS_AutodialMonitor' WindowName: '(null)'
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