Win32.HLLW.Autoruner.47659
Added to the Dr.Web virus database:
2011-06-18
Virus description added:
2011-06-19
Technical Information
To ensure autorun and distribution:
Creates the following files on removable media:
- <Drive name for removable media>:\Pagefile.exe
- <Drive name for removable media>:\Autorun.inf
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
Creates and executes the following:
Executes the following:
- <SYSTEM32>\net1.exe stop wuauserv
- <SYSTEM32>\attrib.exe -s -h -r C:\Autorun.inf\*.* /s /d
- <SYSTEM32>\net1.exe stop wscsvc
- <SYSTEM32>\sc.exe config wscsvc start= disabled
- <SYSTEM32>\net1.exe stop sharedaccess
- <SYSTEM32>\net1.exe user helpassistant 123456
- <SYSTEM32>\net1.exe localgroup %USERNAME%s helpassistant /add
- <SYSTEM32>\net1.exe start TlntSvr
- <SYSTEM32>\net1.exe stop srservice
- %WINDIR%\regedit.exe /s %WINDIR%\regedt32.sys
- <SYSTEM32>\net.exe stop wscsvc
- <SYSTEM32>\attrib.exe -s -h -r <Drive name for removable media>:\Autorun.inf\*.* /s /d
- <SYSTEM32>\net.exe stop sharedaccess
- <SYSTEM32>\cmd.exe /c <SYSTEM32>\Option.bat
- <SYSTEM32>\attrib.exe -s -h -r Z:\Autorun.inf\*.* /s /d
- <SYSTEM32>\sc.exe config SharedAccess start= disabled
- <SYSTEM32>\sc.exe config wuauserv start= disabled
- <SYSTEM32>\net.exe stop srservice
- <SYSTEM32>\net.exe stop wuauserv
- <SYSTEM32>\sc.exe config srservice start= disabled
Modifies settings of Windows Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'DisallowRun' = '00000001'
Forces autoplay for removable media.
Modifies file system :
Creates the following files:
- C:\Pagefile.exe
- C:\Autorun.inf
- %HOMEPATH%\Templates\excel.xls
- %WINDIR%\regedt32.sys
- <Current directory>\<Virus name>~4.exe
- C:\ntldr~6
- <SYSTEM32>\Option.bat
- <SYSTEM32>\UpdatAuto.exe
- C:\ntldr~8
Sets the 'hidden' attribute to the following files:
- C:\Autorun.inf
- C:\Pagefile.exe
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\Pagefile.exe
Deletes the following files:
- <Current directory>\<Virus name>~4.exe
Miscellaneous:
Searches for the following windows:
- ClassName: 'RegEdit_RegEdit' WindowName: ''
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