PLATFORM:

Windows 98, ME, NT, 2000, XP, Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Hacking Tool

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Hacking Tool adds registry entries to enable its automatic execution at every system startup.



  TECHNICAL DETAILS

File Size: 58697 bytes
Memory Resident: Yes
Initial Samples Received Date: 17 Dec 2009

Installation


This Hacking Tool drops the following copies of itself into the affected system:

  • %Windows%\mseiw.exe

(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)


It drops the following files:

  • %System Root%\win.exe
  • %Windows%\syxsocks.dll

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)



Autostart Technique


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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\ CurrentVersion\Run
Msiew = "%Windows%\mseiw.exe"



Other System Modifications


This Hacking Tool adds the following registry keys:

HKEY_CURRENT_USER\Software\NirSoft
(Default) =  

HKEY_CURRENT_USER\Software\NirSoft\
MailPassView
(Default) =  


  SOLUTION

Minimum Scan Engine: 8.900
SSAPI PATTERN File: 0.619.00
SSAPI PATTERN Date: 18 Mar 2008

Step 1


For Windows ME and XP users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.


Step 2


Identify and terminate files detected as HKTL_MAILPASS.B

[ Learn More ]
  1. For Windows 98 and ME users, Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the grayware/spyware file. You may download the said tool here.
  2. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.


Step 3


Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer"s registry. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.


RESTORE
  • Close Registry Editor.


    • Step 4


    Scan your computer with your Trend Micro product to delete files detected as


    *Note: If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.


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