PUA.Win32.UpToDown.AA

This Potentially Unwanted Application 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 Potentially Unwanted Application 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 Potentially Unwanted Application adds the following processes:

• "%AppDataLocal%\ConduitInstaller.exe" -ctid=ct2828561 -ie -ff -ch -startpage=true -defaultsearch=true -openwelcomedialog=false

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It creates the following folders:

• %User Profile%\AppData
• %System Root%\Users

(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)

Other System Modifications

This Potentially Unwanted Application deletes the following folders:

• %User Temp%\nss9B55.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(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Dropping Routine

This Potentially Unwanted Application drops the following files:

• %AppDataLocal%\ConduitInstaller.exe
• %AppDataLocal%\bloson.bmp
• %AppDataLocal%\lateral3.bmp
• %AppDataLocal%\toolbar3.bmp
• %AppDataLocal%\lateral2.bmp
• %System Root%\~GLHTTP1.TMP
• %User Temp%.u2d
• %AppDataLocal%\lateral1.bmp
• %AppDataLocal%\google-chrome-12-0-742-112-win.exe
• %AppDataLocal%\Bloson.exe

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Other Details

This Potentially Unwanted Application connects to the following possibly malicious URL:

• http://www.{BLOCKED}wn.com/dm/control.txt
• http://img.{BLOCKED}wn.net/icons/google-chrome-4-0-249-78.jpg
• http://www.{BLOCKED}wn.com/dm/date.txt
• http://www.{BLOCKED}wn.com/{random path}
• http://servicemap.{BLOCKED}t-services.com/Toolbar/?ownerId=ct2828561
• http://ct2828561.{BLOCKED}lbar.com/ie?{random characters}
• http://www.{BLOCKED}lbar.com/ie?{random characters}
• http://{BLOCKED}6.46.11/ie?{random characters}
• http://img.{BLOCKED}wn.com

This report is generated via an automated analysis system.