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Win32.HLLW.Autoruner1.61444
Added to the Dr.Web virus database:
2013-11-18
Virus description added:
2013-11-19
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'AVP' = ''
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe Nargiz.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rstrui' = '<SYSTEM32>\Restore\Ntldr.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Ntldr' = '<SYSTEM32>\Restore\Ntldr.exe'
Creates the following files on removable media:
<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:
Executes the following:
'<SYSTEM32>\tree.com' E:
'<SYSTEM32>\tree.com' /c <SYSTEM32>\Restore\worm.bat
'<SYSTEM32>\attrib.exe' /pid=2840
'<SYSTEM32>\attrib.exe' +R +H +S Ntldr.exe
'<SYSTEM32>\cmd.exe' /c <SYSTEM32>\Restore\xeon.bat
'<SYSTEM32>\cmd.exe' /c <SYSTEM32>\Restore\crack.bat
'<SYSTEM32>\cmd.exe' /c <SYSTEM32>\Restore\worm.bat
Injects code into
the following system processes:
<SYSTEM32>\tree.com
<SYSTEM32>\cmd.exe
Modifies file system :
Creates the following files:
<SYSTEM32>\Restore\crack.bat
<SYSTEM32>\Restore\cpnx.dll
<SYSTEM32>\Restore\awax.rex
<SYSTEM32>\Restore\worm.bat
C:\autorun.inf
<Current directory>\autorun.inf
<SYSTEM32>\Restore\xeon.bat
<SYSTEM32>\autorun.inf
Sets the 'hidden' attribute to the following files:
C:\autorun.inf
<Drive name for removable media>:\autorun.inf
<Current directory>\autorun.inf
<SYSTEM32>\autorun.inf
Deletes the following files:
<SYSTEM32>\Restore\crack.bat
Miscellaneous:
Searches for the following windows:
ClassName: '(null)' WindowName: 'Windows Task Manager'
ClassName: 'Indicator' WindowName: '(null)'
ClassName: '(null)' WindowName: 'BitDefender 9 Professional Plus'
ClassName: '(null)' WindowName: 'System Restore'
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