smt.exe – FakeAV “XP Anti-Virus 2011″

April 15, 2011 by NightWatcher
Filed under: FakeAV 
: Solved!

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The file smt.exe is a part of Fake Antiviral software.
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Kill the process smt.exe and remove smt.exe from Windows startup.

Malware Analysis of “XP Anti-Virus 2011″
Executed: 16.exe
Removed: smt.exe. Full path: C:\Documents and Settings\Administrator\Local Settings\Application Data\smt.exe

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Detected by RegRun Warrior:

1. RegRun Reanimator:

Item Name: .exe
Author: Unknown
Related File: “C:\Documents and Settings\Administrator\Local Settings\Application Data\smt.exe” -a “%1″ %*
Type: Main File Extensions

2. Multi AntiVirus scan:

- none -

Removal Results: Success
Number of reboot: 1

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How to quickly detect malware presence?

Registry: HKLM\Software\Clients\StartMenuInternet\FIREFOX.EXE\shell\open\command\:
Value: “”C:\Documents and Settings\Administrator\Local Settings\Application Data\smt.exe” -a “C:\Program Files\Mozilla Firefox\firefox.exe”"

Registry: HKLM\Software\Clients\StartMenuInternet\FIREFOX.EXE\shell\safemode\command\:
Value: “”C:\Documents and Settings\Administrator\Local Settings\Application Data\smt.exe” -a “C:\Program Files\Mozilla Firefox\firefox.exe” -safe-mode”

Registry: HKLM\Software\Clients\StartMenuInternet\IEXPLORE.EXE\shell\open\command\:
Value: “”C:\Documents and Settings\Administrator\Local Settings\Application Data\smt.exe” -a “C:\Program Files\Internet Explorer\iexplore.exe”"

Files:
C:\Documents and Settings\Administrator\Local Settings\Application Data\smt.exe
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Installation
When the program is executed, it creates the following registry subkeys and values:

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Keys deleted:5
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HKLM\System\CurrentControlSet\Enum\Root\LEGACY_WUAUSERV
HKLM\System\CurrentControlSet\Enum\Root\LEGACY_WUAUSERV\0000
HKLM\System\CurrentControlSet\Services\wuauserv
HKLM\System\CurrentControlSet\Services\wuauserv\Parameters
HKLM\System\CurrentControlSet\Services\wuauserv\Security

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Values deleted:16
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HKLM\System\CurrentControlSet\Enum\Root\LEGACY_WUAUSERV\0000\Service: “wuauserv”
HKLM\System\CurrentControlSet\Enum\Root\LEGACY_WUAUSERV\0000\Legacy: 0×00000001
HKLM\System\CurrentControlSet\Enum\Root\LEGACY_WUAUSERV\0000\ConfigFlags: 0×00000000
HKLM\System\CurrentControlSet\Enum\Root\LEGACY_WUAUSERV\0000\Class: “LegacyDriver”
HKLM\System\CurrentControlSet\Enum\Root\LEGACY_WUAUSERV\0000\ClassGUID: “{8ECC055D-047F-11D1-A537-0000F8753ED1}”
HKLM\System\CurrentControlSet\Enum\Root\LEGACY_WUAUSERV\0000\DeviceDesc: “Automatic Updates”
HKLM\System\CurrentControlSet\Enum\Root\LEGACY_WUAUSERV\NextInstance: 0×00000001
HKLM\System\CurrentControlSet\Services\wuauserv\Security\Security: 01 00 14 80 90 00 00 00 9C 00 00 00 14 00 00 00 30 00 00 00 02 00 1C 00 01 00 00 00 02 80 14 00 FF 01 0F 00 01 01 00 00 00 00 00 01 00 00 00 00 02 00 60 00 04 00 00 00 00 00 14 00 FD 01 02 00 01 01 00 00 00 00 00 05 12 00 00 00 00 00 18 00 FF 01 0F 00 01 02 00 00 00 00 00 05 20 00 00 00 20 02 00 00 00 00 14 00 8D 01 02 00 01 01 00 00 00 00 00 05 0B 00 00 00 00 00 18 00 FD 01 02 00 01 02 00 00 00 00 00 05 20 00 00 00 23 02 00 00 01 01 00 00 00 00 00 05 12 00 00 00 01 01 00 00 00 00 00 05 12 00 00 00
HKLM\System\CurrentControlSet\Services\wuauserv\Parameters\ServiceDll: “C:\WINDOWS\system32\wuauserv.dll”
HKLM\System\CurrentControlSet\Services\wuauserv\Type: 0×00000020
HKLM\System\CurrentControlSet\Services\wuauserv\Start: 0×00000002
HKLM\System\CurrentControlSet\Services\wuauserv\ErrorControl: 0×00000001
HKLM\System\CurrentControlSet\Services\wuauserv\ImagePath: “%systemroot%\system32\svchost.exe -k netsvcs”
HKLM\System\CurrentControlSet\Services\wuauserv\DisplayName: “Automatic Updates”
HKLM\System\CurrentControlSet\Services\wuauserv\ObjectName: “LocalSystem”
HKLM\System\CurrentControlSet\Services\wuauserv\Description: “Enables the download and installation of Windows updates. If this service is disabled, this computer will not be able to use the Automatic Updates feature or the Windows Update Web site.”

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Values added:6
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HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\EnableFirewall: 0×00000000
HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\DoNotAllowExceptions: 0×00000000
HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\DisableNotifications: 0×00000001
HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions: 0×00000000
HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications: 0×00000001
HKCU\Software\Microsoft\Windows\Identity: 0x897E84E8

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Values modified:14
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(-) HKLM\Software\Clients\StartMenuInternet\FIREFOX.EXE\shell\open\command\: “C:\Program Files\Mozilla Firefox\firefox.exe”
(+) HKLM\Software\Clients\StartMenuInternet\FIREFOX.EXE\shell\open\command\: “”C:\Documents and Settings\Administrator\Local Settings\Application Data\smt.exe” -a “C:\Program Files\Mozilla Firefox\firefox.exe”"
(-) HKLM\Software\Clients\StartMenuInternet\FIREFOX.EXE\shell\safemode\command\: “”C:\Program Files\Mozilla Firefox\firefox.exe” -safe-mode”
(+) HKLM\Software\Clients\StartMenuInternet\FIREFOX.EXE\shell\safemode\command\: “”C:\Documents and Settings\Administrator\Local Settings\Application Data\smt.exe” -a “C:\Program Files\Mozilla Firefox\firefox.exe” -safe-mode”
(-) HKLM\Software\Clients\StartMenuInternet\IEXPLORE.EXE\shell\open\command\: “C:\Program Files\Internet Explorer\iexplore.exe”
(+) HKLM\Software\Clients\StartMenuInternet\IEXPLORE.EXE\shell\open\command\: “”C:\Documents and Settings\Administrator\Local Settings\Application Data\smt.exe” -a “C:\Program Files\Internet Explorer\iexplore.exe”"
(-) HKLM\Software\Microsoft\Security Center\AntiVirusOverride: 0×00000000
(+) HKLM\Software\Microsoft\Security Center\AntiVirusOverride: 0×00000001
(-) HKLM\Software\Microsoft\Security Center\FirewallOverride: 0×00000000
(+) HKLM\Software\Microsoft\Security Center\FirewallOverride: 0×00000001
(-) HKLM\System\CurrentControlSet\Services\SharedAccess\Start: 0×00000002
(+) HKLM\System\CurrentControlSet\Services\SharedAccess\Start: 0×00000004
(-) HKCU\Software\Clients\StartMenuInternet\: “FIREFOX.EXE”
(+) HKCU\Software\Clients\StartMenuInternet\: “IEXPLORE.EXE”

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Files added:5
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C:\Documents and Settings\Administrator\Local Settings\Application Data\olralxi5ci8w
C:\Documents and Settings\Administrator\Local Settings\Application Data\smt.exe
C:\Documents and Settings\Administrator\Local Settings\Temp\olralxi5ci8w
C:\Documents and Settings\Administrator\Templates\olralxi5ci8w
C:\Documents and Settings\All Users\Application Data\olralxi5ci8w

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Files [attributes?] modified:1
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C:\Documents and Settings\Administrator\Local Settings\Application Data\GDIPFONTCACHEV1.DAT

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Total changes:47
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Recommended software:
UnHackMe anti-rootkit and anti-malware
http://www.unhackme.com
RegRun Security Suite (Good choice for removal and protection)
http://www.regrun.com


Recommended: UnHackMe anti-rootkit and anti-malware

Premium software: RegRun Security Suite (Good choice for removal and protection)

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