ThreatExpert's awareness of the file "hosts.exe":

Across all ThreatExpert reports, the file "hosts.exe" was mostly identified as a threat.

File "hosts.exe" has the following statistics:

Total number of reports analysed	611,932
Number of cases that involved the file "hosts.exe"	11
Number of incidents when this file was found to be a threat	7
Statistical volume of cases when "hosts.exe" was a threat	64%

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Notes:

Please note that the name of the file should NOT be used to define if it is legitimate or not. Such determination can only be made by observing its dynamic behaviour.
In order to check a file, please submit it to ThreatExpert.
For a comprehensive pro-active protection against threats, please consider ThreatFire - our behavioral antivirus solution.

The file "hosts.exe" is known to be created under the following filenames:

%ProgramFiles%\micro\hosts.exe

%System%\drivers\etc\hosts.exe

%System%\drivers\setup\hosts\hosts.exe

%Temp%\hosts.exe

%Temp%\tempalbert\hosts.exe

%Windir%\hosts.exe

%Windir%\tmp\hosts.exe

Notes:

%ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.
%System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).
%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).
%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

The following threats are known to be associated with the file "hosts.exe":

Threat Alias	Number of Incidents
Backdoor.Win32.Small.czo [Kaspersky Lab]	6
Generic BackDoor.k [McAfee]	6
Mal/Generic-A [Sophos]	6
Trojan.Adclicker [Symantec]	6
Trojan:Win32/Qhost.IZ [Microsoft]	6
Backdoor.Small!ct [PC Tools]	4
Trojan-Downloader.Win32.Small [Ikarus]	4
Win-Trojan/Downloader.24576.PZ [AhnLab]	4
Backdoor.Small.AMUX [PC Tools]	2
Backdoor.Trojan [Symantec]	1
Backdoor.Win32.Bifrose.fpb [Kaspersky Lab]	1
Backdoor:Win32/Bifrose.AE [Microsoft]	1
BackDoor-CEP.gen.g [McAfee]	1
BKDR_AHZE.SMM [Trend Micro]	1
IM-Worm.Win32.Kelvir.AK [Ikarus]	1
IM-Worm.Win32.Kelvir.r [Kaspersky Lab]	1
I-Worm.Kelvir.N [PC Tools]	1
Mal/Bifrose-X, Mal/Behav-352, Mal/Midgar-A, Mal/EncPk-FH [Sophos]	1
SettingsModifier.Win32.PossibleHostsFileHijack [Ikarus]	1
Troj/Banhost-AK [Sophos]	1
TROJ_KILLER.B [Trend Micro]	1
Trojan.Generic [PC Tools]	1
Trojan.Midgare.hhn [PC Tools]	1
Trojan.Qhost [Ikarus]	1
W32.Kelvir.AA [Symantec]	1
W32/Kelvir.worm.gen [McAfee]	1
W32/Kelvir-K [Sophos]	1
Win-Trojan/Midgare.32256 [AhnLab]	1
Worm:Win32/Kelvir.S [Microsoft]	1