TSPY_BANKER.EWS

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

Arrival Details

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

Installation

This spyware drops the following copies of itself into the affected system:

• %User Profile%\Inicializar\Windows Update.exe
• %System Root%\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup\Windows Update.exe
• %System%\Windows Update.exe

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %System% is the Windows system folder, which is usually C:\Windows\System32.)

Other System Modifications

This spyware adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
FLGgkqMa

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
FLGgkqMa
ayuQvAon = "{random values}"

Dropping Routine

This spyware drops the following files:

• %Common Startup%\Windows Update.exe

(Note: %Common Startup% is the system's shared Startup folder, which is usually C:\Documents and Settings\All Users\Start Menu\Programs\Startup on Windows 2000, XP, and Server 2003.)

This report is generated via an automated analysis system.