TROJ_MIUREF.MGR

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 and executes the following files:

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

Autostart Technique

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

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\RunOnce
{random characters} = "%User Temp%\xiprtrmgr.exe"

Other System Modifications

This Trojan adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
P3P

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
P3P\History

HKEY_CURRENT_USER\Software\Local AppWizard-Generated Applications\
xiprtrmgr

HKEY_CURRENT_USER\Software\Local AppWizard-Generated Applications\
xiprtrmgr\LAYOUT

HKEY_CURRENT_USER\Software\Local AppWizard-Generated Applications\
xiprtrmgr\Recent File List

HKEY_CURRENT_USER\Software\Local AppWizard-Generated Applications\
xiprtrmgr\Settings

Dropping Routine

This Trojan drops the following files:

• %User Temp%\setup.dat

(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.)