TROJ_SMALL.LOR

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 deletes itself after execution.

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.

Other System Modifications

This Trojan deletes the following files:

• %Temp%\scs1.tmp
• %Temp%\scs2.tmp
• %Temp%\scs3.tmp
• %Temp%\scs4.tmp

(Note: %Temp% is the Windows Temporary folder, which is usually C:\Windows\Temp.)

It modifies the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
DirectDraw\MostRecentApplication
Name = "iexplore.exe"

(Note: The default value data of the said registry entry is iexplore.exe.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
DirectDraw\MostRecentApplication
ID = "4117b81"

(Note: The default value data of the said registry entry is 41107b81.)

Dropping Routine

This Trojan drops the following files:

• %System Root%\silent093.exe
• %System Root%\protas.exe
• %User Temp%\ieE8AA.tmp

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

Other Details

This Trojan connects to the following possibly malicious URL:

• http://install.{BLOCKED}miracle.com/silent_install.exe
• http://install.{BLOCKED}miracle.com/protector.exe

It deletes itself after execution.

This report is generated via an automated analysis system.