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Troj/Agent-MLF

Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 9 February 2010 19:00:01 (GMT)
Detected by All Sophos products
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Action

More Information

Troj/Agent-MLF is a Trojan for the Windows platform.

When Troj/Agent-MLF is installed the following files are created:

<System>\smss32.exe
<System>\winlogon32.exe

The following registry entries are created to run smss32.exe on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
smss32.exe
<System>\smss32.exe

HKCU\Software\Microsoft\Windows\CurrentVersion\Run
smss32.exe
<System>\smss32.exe

The following registry entry is changed to run winlogon32.exe on startup:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Userinit
<System>\winlogon32.exe

The following registry entries are set, affecting internet security:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\buy-internetsecurity10.com
http
0x00000002

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\buy-is2010.com
http
0x00000002

HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\buy-internetsecurity10.com
http
0x00000002

HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\buy-is2010.com
http
0x00000002

HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\is-software-download.com
http
0x00000002

HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\is-software-download25.com
http
0x00000002

HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\is10-soft-download.com
http
0x00000002

HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2
Flag
0x00000043

The following registry entry is set, disabling system software:

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableTaskMgr
0x00000001

Registry entries are set as follows:

HKLM\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter
EnabledV8
0x00000000

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\ActiveDesktop
NoChangingWallpaper
0x00000001

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer
NoSetActiveDesktop
0x00000001

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer
NoActiveDesktopChanges
0x00000001

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system
EnableLUA
0x00000000

HKCU\Software\Microsoft\Internet Explorer\PhishingFilter
Enabled
0x00000000

HKCU\Software\Microsoft\Internet Explorer\PhishingFilter
EnabledV8
0x00000000

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop
NoChangingWallpaper
0x00000001

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NoSetActiveDesktop
0x00000001

HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NoActiveDesktopChanges
0x00000001


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