TROJ_AVKILLP.AI

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.

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 and executes them:

• %System%\zaking.exe

(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)

It drops the following files:

• %System%\zaking0.dll

(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)

Autostart Technique

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

HKEY_CURRENT_USER\Microsoft\Windows\
CurrentVersion\Run
king_za = "%System%\zaking.exe"

Download Routine

This Trojan connects to the following website(s) to download and execute a malicious file:

• http://baiduscs.com/1tw/at1.rar

It saves the files it downloads using the following names:

• %User Temp%\at1.rar

(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, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)