TROJ_KILLAV.SMED

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.

Other System Modifications

This Trojan modifies the following file(s):

• %System%\drivers\etc\hosts
• %System%\drivers\acpiec.sys

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

It deletes the following files:

• System32\DRIVERS\pcidump.sys
• %System%\drivers\puid.sys

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

Dropping Routine

This Trojan drops the following files:

• %System%\killkb.dll
• %System Root%\WINDOWSaboy.dll
• %System%\drivers\pcidump.sys
• %User Temp%\187625.txt

(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.. %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://v.{BLOCKED}y01.cn/tj/tj4/get.asp?{random characters}

This report is generated via an automated analysis system.