TROJ_FAKEAV.FZ

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It does not have any propagation routine.

It does not have any backdoor routine.

It connects to certain URLs. It may do this to remotely inform a malicious user of its installation. It may also do this to download possibly malicious files onto the computer, which puts the computer at a greater risk of infection by other threats.

It does not have any information-stealing capability.

It installs a fake antivirus/antispyware software. It displays a window where users can purchase this fake antivirus program.

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Infection Points

This Trojan arrives as a file downloaded from the following URLs:

• http://{BLOCKED}alsgecko.info/soft4.exe

Installation

This Trojan drops the following files:

• %Desktop%\Live Security Platinum.lnk
• %Start Menu%\Programs\Live Security Platinum\Live Security Platinum.lnk
• {All User's Profile}\Application Data\{random folder name}\{random file name}
• {All User's Profile}\Application Data\{random folder name}\{random file name}.ico

(Note: %Desktop% is the current user's desktop, which is usually C:\Windows\Profiles\{user name}\Desktop on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Desktop on Windows NT, and C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Profiles\{user name}\Start Menu on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu on Windows NT and C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003.)

It drops the following copies of itself into the affected system:

• {All User's Profile}\Application Data\{random folder name}\{random file name}.exe

It creates the following folders:

• {All User's Profile}\Application Data\{random folder name}
• %Start Menu%\Programs\Live Security Platinum

(Note: %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Profiles\{user name}\Start Menu on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu on Windows NT and C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003.)

Autostart Technique

This Trojan adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\RunOnce
{random file name} = "{All User's Profile}\Application Data\{random folder name}\{random file name}.exe"

Other System Modifications

This Trojan adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
Installer

HKEY_CURRENT_USER\Software\Microsoft\
Installer\Products

HKEY_CURRENT_USER\Software\Microsoft\
Installer\Products\{random key name}

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
Live Security Platinum

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Installer\Products\{random key name}
(Default) = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
Live Security Platinum
DisplayName = "Live Security Platinum"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
Live Security Platinum
ShortcutPath = ""{All User's Profile}\Application Data\{random folder name}\{random file name}.exe" -u"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
Live Security Platinum
UninstallString = ""{All User's Profile}\Application Data\{random folder name}\{random file name}.exe" -u"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
Live Security Platinum
DisplayIcon = "{All User's Profile}\Application Data\{random folder name}\{random file name}.ico,0"

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan does not have any backdoor routine.

Download Routine

This Trojan connects to the following malicious URLs:

• {BLOCKED}.{BLOCKED}.178.189/api/urls/?ts={number}&affid={number}
• {BLOCKED}.{BLOCKED}.178.189/api/stats/install/?ts={number}&affid={number}&ver={number}&group=liv

Information Theft

This Trojan does not have any information-stealing capability.

Rogue Antivirus Routine

This Trojan displays the following fake alerts:

It installs a fake antivirus/antispyware software.

The following window is displayed for users to purchase the fake antivirus program:

It displays the following window and pretends to scan the system:

NOTES:

This Trojan terminates processes except for the following:

• alg.exe
• csrss.exe
• ctfmon.exe
• iexplore.exe
• lsass.exe
• services.exe
• smss.exe
• svchost.exe
• winlogon.exe

It does not have rootkit capabilities.

It does not exploit any vulnerability.