Win32.HLLW.Autoruner1.25473
Added to the Dr.Web virus database:
2012-09-03
Virus description added:
2012-09-24
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Classes\regfile\shell\open\command] '' = '<SYSTEM32>\msdto.exe %1'
- [<HKLM>\SOFTWARE\Classes\batfile\shell\open\command] '' = '<SYSTEM32>\msdto.exe %1'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe shell'
- [<HKLM>\SOFTWARE\Classes\cmdfile\shell\open\command] '' = '<SYSTEM32>\msdto.exe %1'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'cstrike' = '<SYSTEM32>\cstrike.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'msdto' = '<SYSTEM32>\msdto.exe'
- [<HKLM>\SOFTWARE\Classes\comfile\shell\open\command] '' = '<SYSTEM32>\spcolsv.exe %1'
- [<HKLM>\SOFTWARE\Classes\piffile\shell\open\command] '' = '<SYSTEM32>\spcolsv.exe %1'
Creates the following files on removable media:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\Recycled\cstrike.exe
- <Drive name for removable media>:\Recycled\desktop.ini
Malicious functions:
Creates and executes the following:
- <SYSTEM32>\shell.exe
- <SYSTEM32>\cstrike.exe
- <SYSTEM32>\msdto.exe
- <SYSTEM32>\nvidia.exe
- <SYSTEM32>\nvidia.exe (downloaded from the Internet)
Terminates or attempts to terminate
the following user processes:
Modifies file system :
Creates the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\alert1[1].exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\alert1[1].exe
- C:\Recycled\desktop.ini
- C:\Autorun.inf
- C:\Recycled\cstrike.exe
- <SYSTEM32>\nvidia.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\alert1[1].exe
- <SYSTEM32>\msdto.exe
- <SYSTEM32>\shell.exe
- <SYSTEM32>\cstrike.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Recycled\desktop.ini
- <Drive name for removable media>:\Recycled\cstrike.exe
- <Drive name for removable media>:\Autorun.inf
- C:\Recycled\desktop.ini
- C:\Recycled\cstrike.exe
- C:\Autorun.inf
Deletes the following files:
- C:\Autorun.inf
- <Drive name for removable media>:\Autorun.inf
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\alert1[1].exe
- <SYSTEM32>\nvidia.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\alert1[1].exe
Network activity:
Connects to:
- 'localhost':1040
- 'localhost':1042
- 'localhost':1038
- 'localhost':1035
- 'us##.#ree.77169.net':80
TCP:
HTTP GET requests:
- us##.#ree.77169.net/crzykj/alert1.exe
UDP:
- DNS ASK us##.#ree.77169.net
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: 'NOD32?????'
- ClassName: '' WindowName: 'NOD32 2.5 ????'
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