TROJ_VB.JJX
Trojan:Win32/VB.ADE (Microsoft); [000133d0.EXE\000133d0.EXE]:Generic AdClicker.p (McAfee); Trojan.Gen (Symantec); PAK:UPX, Trojan-Clicker.Win32.VB.gfi (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan.VB.Agent.HO (FSecure)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
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.
TECHNICAL DETAILS
9,580,544 bytes
EXE
No
02 Nov 2012
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.
Other System Modifications
This Trojan adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Toolbar\WebBrowser
ITBar7Layout = "{random values}"
It modifies the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Toolbar\WebBrowser
ITBarLayout = "{random values}"
(Note: The default value data of the said registry entry is {random values}.)
Dropping Routine
This Trojan drops the following files:
- %System Root%\b.txt
- %System Root%\d.txt
- %Favorites%\×îм«Æ·ÂÌÉ«ºÃµÄµçÓ°¿âÃâ·Ñ.¸ßÇå¸ßËÙ£¡ÌìÌì¸üÐÂ!!.html
- %Favorites%\Öйú¸£Àû²ÊƱ£¬ÌåÓý²ÊƱµÄͶעÖÐÐÄ.²ÊƱ´óÓ®¼Ò!.html
- %Favorites%\×îÐÂÔÚÏßС˵Ãâ·ÑµÄÔĶÁ.·á¸»ÄÚÈÝËٶȿìµÄС˵վ!.html
- %Favorites%\ÌÔ±¦Íø - ÌÔ£¡ÎÒϲ»¶.html
- %Favorites%\45575.comÔÚÏßµÄСÓÎÏ·.×îºÃÍæ×îÐÂ×î¿ì¿á³¬¼¶Ð¡ÓÎÏ·!.html
- %User Profile%\Favoritesµ±µ±Íø¡ªÍøÉϹºÎïÖÐÐÄ.html
- %Favorites%\׿ԽÑÇÂíÑ·ÍøÉϹºÎïͼÊ飬ÊÖ»ú£¬ÊýÂ룬¼Òµç£¬»¯×±Æ·£¬ÖÓ±í£¬Ê×ÊεÈÔÚÏßÏúÊÛ.html
- %Favorites%\¿´¿´µçÊÓ¾çÔÚÏß´óÈ«,,,×îºÃÂÌÉ«×îиßËÙÃâ·ÑµçÊÓ¾çÍøÕ¾!.html
- %Favorites%\¼õ·Ê£¡¿ìµ½ÈÃÄã&¼â½Ð£¡ºþÄÏÎÀÊÓÍƼö×óÐýÈâ¼î¼õ·Ê!.html
- %Favorites%\°¬³ÈÍŹº - ¾«Æ·ÍŹºÃ¿Ò»Ì칺ÎïÍŹº´òÕÛ!.html
- %Favorites%\ÃÀÅ®·áÐØ´óÃؾ÷-20ÌìÄÚѸËÙÔö´ó´ó´ó!.html
- %Favorites%\°¬³ÈÅ®×°--×îÃÀÀöʱÉеÄÅ®×°Æ·ÅÆ.ÃÀÅ®ÂòÒ£¬Ãëɱ°¬³ÈÅ®×°!!.html
- %Favorites%\Á´½Ó\ÍøÖ·µ¼º½.html
- %Favorites%\Á´½Ó\¸£²ÊÌå²Ê.html
- %Favorites%\Á´½Ó\¡ô ÌÔ ±¦ Íø ¡ô.html
- %Favorites%\Á´½Ó\ºÃÍæСÓÎÏ·.html
- %Favorites%\Á´½Ó\µ±µ±Íø.html
- %Favorites%\Á´½Ó\׿ԽÍø.html
- %Favorites%\Á´½Ó\¿´µçÊÓ¾ç.html
- %Favorites%\Á´½Ó\С˵Íø.html
- %Favorites%\Á´½Ó\µ¥»úÓÎÏ·.html
- %Favorites%\Á´½Ó\ÍøÂçµçÊÓ.html
- %Favorites%\Á´½Ó\×î¿ìµçÓ°.html
- %System Root%\taobao.ico
- %System Root%\game.ico
- %Desktop%\ÌÔ±¦.url
- %Desktop%\ÔÚÏßСÓÎÏ·.url
This report is generated via an automated analysis system.
SOLUTION
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
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser
- ITBar7Layout = "{random values}"
Step 3
Restore this modified registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser
- From: ITBarLayout = "{random values}"
To: ITBarLayout = ""{random values}""
- From: ITBarLayout = "{random values}"
Step 4
Search and delete these files
- %System Root%\b.txt
- %System Root%\d.txt
- %Favorites%\×îм«Æ·ÂÌÉ«ºÃµÄµçÓ°¿âÃâ·Ñ.¸ßÇå¸ßËÙ£¡ÌìÌì¸üÐÂ!!.html
- %Favorites%\Öйú¸£Àû²ÊƱ£¬ÌåÓý²ÊƱµÄͶעÖÐÐÄ.²ÊƱ´óÓ®¼Ò!.html
- %Favorites%\×îÐÂÔÚÏßС˵Ãâ·ÑµÄÔĶÁ.·á¸»ÄÚÈÝËٶȿìµÄС˵վ!.html
- %Favorites%\ÌÔ±¦Íø - ÌÔ£¡ÎÒϲ»¶.html
- %Favorites%\45575.comÔÚÏßµÄСÓÎÏ·.×îºÃÍæ×îÐÂ×î¿ì¿á³¬¼¶Ð¡ÓÎÏ·!.html
- %User Profile%\Favoritesµ±µ±Íø¡ªÍøÉϹºÎïÖÐÐÄ.html
- %Favorites%\׿ԽÑÇÂíÑ·ÍøÉϹºÎïͼÊ飬ÊÖ»ú£¬ÊýÂ룬¼Òµç£¬»¯×±Æ·£¬ÖÓ±í£¬Ê×ÊεÈÔÚÏßÏúÊÛ.html
- %Favorites%\¿´¿´µçÊÓ¾çÔÚÏß´óÈ«,,,×îºÃÂÌÉ«×îиßËÙÃâ·ÑµçÊÓ¾çÍøÕ¾!.html
- %Favorites%\¼õ·Ê£¡¿ìµ½ÈÃÄã&¼â½Ð£¡ºþÄÏÎÀÊÓÍƼö×óÐýÈâ¼î¼õ·Ê!.html
- %Favorites%\°¬³ÈÍŹº - ¾«Æ·ÍŹºÃ¿Ò»Ì칺ÎïÍŹº´òÕÛ!.html
- %Favorites%\ÃÀÅ®·áÐØ´óÃؾ÷-20ÌìÄÚѸËÙÔö´ó´ó´ó!.html
- %Favorites%\°¬³ÈÅ®×°--×îÃÀÀöʱÉеÄÅ®×°Æ·ÅÆ.ÃÀÅ®ÂòÒ£¬Ãëɱ°¬³ÈÅ®×°!!.html
- %Favorites%\Á´½Ó\ÍøÖ·µ¼º½.html
- %Favorites%\Á´½Ó\¸£²ÊÌå²Ê.html
- %Favorites%\Á´½Ó\¡ô ÌÔ ±¦ Íø ¡ô.html
- %Favorites%\Á´½Ó\ºÃÍæСÓÎÏ·.html
- %Favorites%\Á´½Ó\µ±µ±Íø.html
- %Favorites%\Á´½Ó\׿ԽÍø.html
- %Favorites%\Á´½Ó\¿´µçÊÓ¾ç.html
- %Favorites%\Á´½Ó\С˵Íø.html
- %Favorites%\Á´½Ó\µ¥»úÓÎÏ·.html
- %Favorites%\Á´½Ó\ÍøÂçµçÊÓ.html
- %Favorites%\Á´½Ó\×î¿ìµçÓ°.html
- %System Root%\taobao.ico
- %System Root%\game.ico
- %Desktop%\ÌÔ±¦.url
- %Desktop%\ÔÚÏßСÓÎÏ·.url
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_VB.JJX. 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.
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