PUA.Win32.Yantai.BB

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.

However, as of this writing, the said sites are inaccessible.

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 drops the following files:

• %Desktop%\ËÙÀË×ÀÃæ.lnk
• %Desktop%\桔子浏览器.lnk
• %Desktop%\½Û×Óä¯ÀÀÆ÷.lnk

(Note: %Desktop% is the current user's desktop, which is usually C:\Documents and Settings\{User Name}\Desktop on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\Desktop on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It adds the following processes:

• %Program Files%\SuLangDesk\Slky.exe
• %Program Files%\SuLangDesk\SlDrv.exe -uninstall
• %Program Files%\SuLangDesk\SlShld.exe
• %Program Files%\SuLangDesk\SLDesk.exe
• %Program Files%\SuLangDesk\SulangWrapper.exe

(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It creates the following folders:

• %Program Files%\SuLangDesk → where it stores its installation files
• %Application Data%\JuziBrowser → where it stores its bundled web browser program
• %User Temp%\{random hex}.tmp

(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %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 System Modifications

This Potentially Unwanted Application adds the following registry entries:

HKCU
Software = SulangDesk

HKCU
Software = JuziBrowser

HKLM
Software = JuziBrowser

Propagation

This Potentially Unwanted Application creates shortcut files (.LNK) disguised as folders or files located on the affected drives pointing to the malware copy.

Other Details

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

• http://log.{BLOCKED}i.net/log.php?type=installEnd&ver=1.0.8.9&cid=99183870_u2_hao
• http://tj.{BLOCKED}.com/status.php
• http://tj.{BLOCKED}.com/limit.php
• http://{BLOCKED}2.{BLOCKED}4.cn/webgame/hazg/HAZG8852.exe
• http://www.{BLOCKED}j.com/3a=http://www.tczjj.com/date/9377mycs_N_dcrmy01.exe
• http://dl.{BLOCKED}2.com/files/third/wdj_dc.gif
• http://download.{BLOCKED}o123.com/setup/setup_10100.exe
• http://cdn.sh.{BLOCKED}mm.com/manage/downloadtool/MagicPlusDownload-Channel_dl_Scarecrow.exe
• http://down.{BLOCKED}e.com/p/Setup_oemxdxdtg.exe

However, as of this writing, the said sites are inaccessible.