TROJ_INJECTO.HT

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 executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

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.

Installation

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

• %Application Data%\Giwuwa.exe

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

It injects threads into the following normal process(es):

• EXPLORER.EXE

Download Routine

This Trojan accesses the following websites to download files:

• http://{BLOCKED}e.com/dl/128654713/a139238/xDx3.jpeg
• http://www.{BLOCKED}lace.com/img404/05811.jpeg

It saves the files it downloads using the following names:

• %User Temp%\x30811.exe

(Note: %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.)

It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.

Other Details

This Trojan connects to the following URL(s) to get the affected system's IP address:

• http://{BLOCKED}i.{BLOCKED}nia.com/