Trojan.AVKill.34970

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'KiSs' = '%WINDIR%\%USERNAME%\%USERNAME%.exe'

Creates or modifies the following files:

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

blocks execution of the following system utilities:

Creates and executes the following:

'%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\Csrss.exe'
'%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\Services.exe'
'%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\BosS.Redhouane.exe'
'%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\smss.exe'
'%WINDIR%\%USERNAME%\%USERNAME%.exe'
'%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\Killer.exe'
'%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\Winlogon.exe'

Executes the following:

Terminates or attempts to terminate

the following system processes:

the following user processes:

Modifies settings of Windows Explorer:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\explorer] 'DisableLocalMachineRun' = '00000000'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\explorer] 'NoRun' = '00000001'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\explorer] 'NoFolderOptions' = '00000001'

Modifies file system :

Creates the following files:

%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\Csrss.exe
%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\BosS.Redhouane.exe
%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\smss.exe
%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\%USERNAME%.exe
%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\Winlogon.exe
<SYSTEM32>\Ksar.inf
<SYSTEM32>\Meriem.bin
%WINDIR%\%USERNAME%\%USERNAME%.exe
%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\Services.exe
%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\Killer.exe

Sets the 'hidden' attribute to the following files:

%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\Services.exe
%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\Killer.exe
%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\smss.exe
%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\Winlogon.exe
%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\%USERNAME%.exe
%WINDIR%\%USERNAME%\%USERNAME%.exe
<SYSTEM32>\Meriem.bin
%HOMEPATH%\Start Menu\Programs\Startup\GoodBye.%USERNAME%.bat
%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\Csrss.exe
%APPDATA%\Microsoft\Windows\%USERNAME%\Data\Security Settings\Antivirus\Scan\History\BosS.Redhouane.exe

Deletes the following files: