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Win32.HLLW.Autoruner2.24651
Added to the Dr.Web virus database:
2016-07-09
Virus description added:
2016-07-09
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Services' = '%WINDIR%\catfcmd32.pif'
Creates the following files on removable media:
<Drive name for removable media>:\AUTORUN.INF
<Drive name for removable media>:\.trash.exe
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
Windows Task Manager (Taskmgr)
Executes the following:
'<SYSTEM32>\reg.exe' add HKLM\System\CurrentControlSet\Control\SessionManager /v Protection Mode /t reg_Dword /d 1 /f
'<SYSTEM32>\cmd.exe' /c reg add HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN /v "Services" /t reg_sz /d "%WINDIR%\catfcmd32.pif" /f
'<SYSTEM32>\reg.exe' add HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN /v "Services" /t reg_sz /d "%WINDIR%\catfcmd32.pif" /f
'<SYSTEM32>\cmd.exe' /c reg add HKLM\System\CurrentControlSet\Control\SessionManager /v Protection Mode /t reg_Dword /d 1 /f
'<SYSTEM32>\cmd.exe' /c copy "<Full path to virus>" "%WINDIR%\catfcmd32.pif" /Y
'<SYSTEM32>\cmd.exe' /c reg add HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\SYSTEM /v DisableTaskMgr /t reg_dword /d 1 /f
'<SYSTEM32>\reg.exe' add HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\POLICIES\SYSTEM /v DisableTaskMgr /t reg_dword /d 1 /f
Modifies file system:
Creates the following files:
C:\AUTORUN.INF
C:\.trash.exe
%WINDIR%\catfcmd32.pif
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\.trash.exe
C:\.trash.exe
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