ALIASES:

Trojan.NSIS.StartPage.wcw (v), Trojan.Win32.Generic!BT (Sunbelt)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

Tipo de compactação: 1,870,650 bytes
Tipo de arquivo: EXE
Residente na memória: No
Data de recebimento das amostras iniciais: 06 Dec 2012

Arrival Details

This spyware 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 spyware creates the following folders:

  • %System Root%\DOCUME~1
  • %System Root%\DOCUME~1\ADMINI~1
  • %User Profile%\LOCALS~1
  • %User Temp%\nsz2.tmp
  • %Program Files%\baidubar
  • %System Root%\Documents and Settings\Administrator

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %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.. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)

Other System Modifications

This spyware deletes the following files:

  • %User Temp%\nsz1.tmp
  • %User Temp%\nsz2.tmp

(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.)

Dropping Routine

This spyware drops the following files:

  • %User Temp%\nsz2.tmp\System.dll
  • %User Temp%\ckgly.exe
  • %User Temp%\Baidu-Toolbar.exe
  • %User Temp%\max2_133daohang3.exe
  • %Program Files%\baidubar\taobao.ico
  • %Program Files%\baidubar\qidian.ico
  • %Desktop%\ÌÔ±¦Íø.lnk
  • %Desktop%\°²È«ä¯ÀÀÆ÷.lnk
  • %Desktop%\ÆðµãС˵.url
  • %User Temp%\nsz2.tmp\ShellLink.dll
  • %User Profile%\Quick Launch\Launch Internet Explorer Browser.lnk

(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.. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).. %Desktop% is the current user's desktop, which is usually C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\Desktop on Windows Vista and 7.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)

This report is generated via an automated analysis system.

  SOLUTION

Mecanismo de varredura mínima: 9.300

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Search and delete these components

[ Learn More ]
There may be some components that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %User Temp%\nsz2.tmp\System.dll
  • %User Temp%\ckgly.exe
  • %User Temp%\Baidu-Toolbar.exe
  • %User Temp%\max2_133daohang3.exe
  • %Program Files%\baidubar\taobao.ico
  • %Program Files%\baidubar\qidian.ico
  • %Desktop%\ÌÔ±¦Íø.lnk
  • %Desktop%\°²È«ä¯ÀÀÆ÷.lnk
  • %Desktop%\ÆðµãС˵.url
  • %User Temp%\nsz2.tmp\ShellLink.dll
  • %User Profile%\Quick Launch\Launch Internet Explorer Browser.lnk

Step 3

Search and delete these folders

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • %System Root%\DOCUME~1
  • %System Root%\DOCUME~1\ADMINI~1
  • %User Profile%\LOCALS~1
  • %User Temp%\nsz2.tmp
  • %Program Files%\baidubar
  • %System Root%\Documents and Settings\Administrator

Step 4

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

Step 5

Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.

  • %User Temp%\nsz1.tmp
  • %User Temp%\nsz2.tmp


Did this description help? Tell us how we did.