TROJ_AGENT.EV

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
• %User Temp%\nso2.tmp
• %Program Files%\FlashF
• %Program Files%\FlashF\Favorite
• %Program Files%\FlashF\Plugin
• %Program Files%\FlashF\Plugin\GetWebSnap
• %Program Files%\FlashF\inc
• %Program Files%\FlashF\search
• %Program Files%\FlashF\tabs
• %Program Files%\FlashF\tabs\tabsDown
• %Program Files%\soft312302
• %Program Files%\ymLevel2_Taste
• %System Root%\Documents and Settings
• %System Root%\Documents and Settings\Administrator
• %Start Menu%\Programs
• %Start Menu%\Programs\ÒæÃËÈí¼þ
• %Start Menu%\Programs\ÒæÃËÈí¼þ\ÒæÃ˲ÙÅÌÊÖ
• %System Root%\Documents and Settings\All Users
• %Program Files%\YMLEVE~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:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.. %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.. %Program Files% is the default Program Files folder, usually C:\Program Files.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Profiles\{user name}\Start Menu on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu on Windows NT and C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003.)

Other System Modifications

This Trojan deletes the following files:

• %User Temp%\nsy1.tmp
• %User Temp%\nso2.tmp
• %User Temp%\GLB7.tmp
• %User Temp%\GLF9.tmp
• %Program Files%\ymLevel2_Taste\UNWISE.EXE
• %Program Files%\ymLevel2_Taste\L2Host.dat
• %Program Files%\ymLevel2_Taste\offLogo.mht

(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.. %Program Files% is the default Program Files folder, usually C:\Program Files.)

It adds the following registry keys:

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
ÒæÃ˲ÙÅÌÊÖ T1.0.5.1

HKEY_CURRENT_USER\Software\ymLevel2_Taste\
Stock\System

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ÒæÃ˲ÙÅÌÊÖ T1.0.5.1
DisplayName = "ÒæÃ˲ÙÅÌÊÖ T1.0.5.1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ÒæÃ˲ÙÅÌÊÖ T1.0.5.1
UninstallString = "%Program Files%\YMLEVE~1\UNWISE.EXE %Program Files%\YMLEVE~1\INSTALL.LOG"

HKEY_CURRENT_USER\Software\ymLevel2_Taste\
Stock\System
Path = "%Program Files%\YMLEVE~1"

HKEY_CURRENT_USER\Software\ymLevel2_Taste\
Stock\System
SharePath = "%Program Files%\YMLEVE~1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Internet Explorer
SidTid = "112301.14"

Dropping Routine

This Trojan drops the following files:

• %User Temp%\nso2.tmp\System.dll
• %Program Files%\FlashF\Config.dat
• %Program Files%\FlashF\CrCom.dll
• %Program Files%\FlashF\Error.Log
• %Program Files%\FlashF\FlashF.exe
• %Program Files%\FlashF\LCmnCtrl32.dll
• %Program Files%\FlashF\lexplorer.ini
• %Program Files%\FlashF\Plugin\GetWebSnap\GetWebSnap.dll
• %Program Files%\FlashF\Plugin\GetWebSnap\GetWebSnap.ini
• %Program Files%\FlashF\inc\Hide.gif
• %Program Files%\FlashF\inc\NoHide.gif
• %Program Files%\FlashF\inc\Progress.bmp
• %Program Files%\FlashF\inc\Thumbs.db
• %Program Files%\FlashF\inc\cls.jpg
• %Program Files%\FlashF\inc\msg.jpg
• %Program Files%\FlashF\inc\nocls.jpg
• %Program Files%\FlashF\inc\nomsg.jpg
• %Program Files%\FlashF\search\mul.ini
• %Program Files%\FlashF\search\searchs.ini
• %Program Files%\FlashF\tabs\TabActive_C.bmp
• %Program Files%\FlashF\tabs\TabActive_L.bmp
• %Program Files%\FlashF\tabs\TabActive_R.bmp
• %Program Files%\FlashF\tabs\TabNormal_C.bmp
• %Program Files%\FlashF\tabs\TabNormal_L.bmp
• %Program Files%\FlashF\tabs\TabNormal_R.bmp
• %Program Files%\FlashF\tabs\TabbaseB.bmp
• %Program Files%\FlashF\tabs\TabbaseT.bmp
• %Program Files%\FlashF\tabs\Thumbs.db
• %Program Files%\FlashF\tabs\tabs.ini
• %Program Files%\FlashF\tabs\tabsDown\TabActive_C.bmp
• %Program Files%\FlashF\tabs\tabsDown\TabActive_L.bmp
• %Program Files%\FlashF\tabs\tabsDown\TabActive_R.bmp
• %Program Files%\FlashF\tabs\tabsDown\TabNormal_C.bmp
• %Program Files%\FlashF\tabs\tabsDown\TabNormal_L.bmp
• %Program Files%\FlashF\tabs\tabsDown\TabNormal_R.bmp
• %Program Files%\FlashF\tabs\tabsDown\Thumbs.db
• %Program Files%\FlashF\tabs\tabsDown\tabs.ini
• %Desktop%\ Intarnot Explarer .lnk
• %User Profile%\Quick Launch\ Intarnot Explarer .lnk
• %Program Files%\soft312302\a
• %Program Files%\soft312302\smes.exe
• B_0220110203020221230231020202.txt
• C_0220110203020221230231020202.txt
• 0220110203020221230231020202.txt
• %User Temp%\nso2.tmp\NSISdl.dll
• %Program Files%\soft312302\wl06079.exe
• %User Temp%\GLB3.tmp
• %User Temp%\GLJ5.tmp
• %User Temp%\GLK6.tmp
• %User Temp%\GLG8.tmp
• %User Temp%\~GLH0000.TMP
• %System%\GLBSINST.%$D
• %Program Files%\ymLevel2_Taste\~GLH0001.TMP
• %Program Files%\ymLevel2_Taste\~GLH0002.TMP
• %Program Files%\YMLEVE~1\temp.000
• %Program Files%\ymLevel2_Taste\~GLH0004.TMP
• %Program Files%\ymLevel2_Taste\~GLH0006.TMP
• %Program Files%\ymLevel2_Taste\~GLH0007.TMP
• %Program Files%\ymLevel2_Taste\~GLH0009.TMP
• %Program Files%\ymLevel2_Taste\~GLH000b.TMP
• %Program Files%\ymLevel2_Taste\~GLH000d.TMP
• %Program Files%\ymLevel2_Taste\~GLH000f.TMP
• %Start Menu%\Programs\ÒæÃËÈí¼þ\ÒæÃ˲ÙÅÌÊÖ\ÒæÃ˲ÙÅÌÊÖ.lnk
• %Desktop%\ÒæÃ˲ÙÅÌÊÖ.lnk
• %Start Menu%\Programs\ÒæÃËÈí¼þ\ÒæÃ˲ÙÅÌÊÖ\жÔØÒæÃ˲ÙÅÌÊÖ.lnk
• %Common Startup%\ÒæÃ˲ÙÅÌÊÖ.lnk
• %Program Files%\YMLEVE~1\INSTALL.LOG

(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.. %Program Files% is the default Program Files folder, usually C:\Program Files.. %Desktop% is the current user's desktop, which is usually C:\Windows\Profiles\{user name}\Desktop on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Desktop on Windows NT, and C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003.. %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.. %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Profiles\{user name}\Start Menu on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu on Windows NT and C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003.. %Common Startup% is the system's shared Startup folder, which is usually C:\Windows\Start Menu\Programs\Startup on Windows 98 and ME, C:\WINNT\Profiles\All Users\Programs\Startup on Windows NT, and C:\Documents and Settings\All Users\Start Menu\Programs\Startup on Windows 2000, XP, and Server 2003.)

This report is generated via an automated analysis system.