TROJ_CLICKER.RS

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 creates the following folders:

• %System Root%\DOCUME~1
• %System Root%\DOCUME~1\ADMINI~1
• %User Profile%\LOCALS~1

(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.)

Other System Modifications

This Trojan deletes the following files:

• %User Temp%\nsl1.tmp
• %User Temp%\tmp.vbs
• %Windows%\fonts\msgothic.ttf
• %Windows%\fonts\msuigoth.ttf
• %Windows%\fonts\MSMINCHO.TTF
• %Windows%\fonts\Gulim.ttf
• %Windows%\fonts\Gulimche.ttf
• %Windows%\fonts\Dotum.ttf
• %Windows%\fonts\Batang.ttf
• %Windows%\fonts\Gungsuh.ttf
• %Windows%\fonts\Simsun.ttf
• %Windows%\fonts\nsimsun.ttf
• %Windows%\fonts\MingLiU.ttf
• %Windows%\fonts\pmingliu.ttf
• %System%\SET3.tmp
• %System%\kbd101b.dll
• %System%\SET5.tmp
• %System%\kbd101c.dll
• %System%\SET7.tmp
• %System%\kbd103.dll
• %System%\SET9.tmp
• %System%\kbd106.dll
• %System%\SETB.tmp
• %System%\kbdjpn.dll
• %System%\SETD.tmp
• %System%\kbdkor.dll

(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.. %Windows% is the Windows folder, which is usually C:\Windows.. %System% is the Windows system folder, which is usually C:\Windows\System32.)

It adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
Enable = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
Size = "a"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
InitHits = "64"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
Factor = "14"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International
W2KLpk = "1"

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International
W2KLpk = "0"

Dropping Routine

This Trojan drops the following files:

• %User Temp%\qq·É³µÍâ¹Ò.exe
• tmp.vbs
• %System Root%\Documents
• %System%\SET2.tmp
• %System%\SET4.tmp
• %System%\SET6.tmp
• %System%\SET8.tmp
• %System%\SETA.tmp
• %System%\SETC.tmp
• %System%\SET3.tmp
• %System%\SET5.tmp
• %System%\SET7.tmp
• %System%\SET9.tmp
• %System%\SETB.tmp
• %System%\SETD.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.. %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %System% is the Windows system folder, which is usually C:\Windows\System32.)

This report is generated via an automated analysis system.