TROJ_AGENT.ACVY
Trojan.Win32.Generic.pak!cobra (Sunbelt)
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.
It modifies files, disabling programs and applications from properly running.
TECHNICAL DETAILS
312,832 bytes
EXE
Yes
08 Jun 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.
Installation
This Trojan creates the following folders:
- %System Root%\DOCUME~1
- %System Root%\DOCUME~1\Wilbert
- %User Profile%\LOCALS~1
- %User Temp%\nsg2.tmp
- %Program Files%\WizSearch
- %User Temp%\nsx4.tmp
- %User Temp%\nsb6.tmp
- %Program Files%\WizPop
- %User Temp%\nsr8.tmp
(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.)
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
WizSearch = "%Program Files%\WizSearch\WizSearch.exe"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
WizPop = "%Program Files%\WizPop\WizPop.exe"
It registers itself as a BHO to ensure its automatic execution every time Internet Explorer is used by adding the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{4B015E18-FD94-4c2c-9CD2-664830506274}
Other System Modifications
This Trojan modifies the following files:
- %Windows%\inf\intl.PNF
(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)
It deletes the following files:
- %User Temp%\nsg1.tmp
- %User Temp%\nsg2.tmp
- %User Temp%\nsh3.tmp
- %User Temp%\nsx4.tmp
- %User Temp%\nsw5.tmp
- %User Temp%\nsb6.tmp
- %User Temp%\nsc7.tmp
- %User Temp%\nsr8.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.)
It adds the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\International\CpMRU
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WizSearch
HKEY_CURRENT_USER\SOFTWARE\WizSearch
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WizPop
HKEY_CURRENT_USER\SOFTWARE\WizPop
HKEY_CURRENT_USER\Software\KMC\
InfoScan
HKEY_CLASSES_ROOT\WizPop_Helper.WizPop.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
WizPop_Helper.WizPop.1\CLSID
HKEY_CLASSES_ROOT\WizPop_Helper.WizPop
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
WizPop_Helper.WizPop\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
WizPop_Helper.WizPop\CurVer
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}\VersionIndependentProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}\Programmable
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{2877F67B-5848-49B2-A5EF-C5B337606E7C}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{2877F67B-5848-49B2-A5EF-C5B337606E7C}\1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{2877F67B-5848-49B2-A5EF-C5B337606E7C}\1.0\
FLAGS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{2877F67B-5848-49B2-A5EF-C5B337606E7C}\1.0\
0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{2877F67B-5848-49B2-A5EF-C5B337606E7C}\1.0\
0\win32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{2877F67B-5848-49B2-A5EF-C5B337606E7C}\1.0\
HELPDIR
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{F130B2A0-DF83-44AC-BF48-F88A418723B7}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{F130B2A0-DF83-44AC-BF48-F88A418723B7}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{F130B2A0-DF83-44AC-BF48-F88A418723B7}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{F130B2A0-DF83-44AC-BF48-F88A418723B7}\TypeLib
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\New Windows\Allow
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"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WizSearch
DisplayName = "WizSearch"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WizSearch
UninstallString = "%Program Files%\WizSearch\WizSearch_Uninstall.exe"
HKEY_CURRENT_USER\Software\WizSearch
installed = "1"
HKEY_CURRENT_USER\Software\WizSearch
pid = "nanda"
HKEY_CURRENT_USER\Software\WizSearch
ver = "1.3"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WizPop
DisplayName = "À§ÁîÆË"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
WizPop
UninstallString = "%Program Files%\WizPop\WizPop_Uninstall.exe"
HKEY_CURRENT_USER\Software\WizPop
installed = "1"
HKEY_CURRENT_USER\Software\WizPop
pid = "i011"
HKEY_CURRENT_USER\Software\WizPop
ver = "1.0"
HKEY_CURRENT_USER\Software\KMC\
InfoScan
ConfigTDY = "Y"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}\InprocServer32
ThreadingModel = "Apartment"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{4B015E18-FD94-4c2c-9CD2-664830506274}
NoExplorer = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{F130B2A0-DF83-44AC-BF48-F88A418723B7}\TypeLib
Version = "1.0"
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\New Windows\Allow
*.wizpop.co.kr = "{random values}"
HKEY_CURRENT_USER\Software\WizPop
dd = "7"
It modifies the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
DirectDraw\MostRecentApplication
Name = "iexplore.exe"
(Note: The default value data of the said registry entry is iexplore.exe.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
DirectDraw\MostRecentApplication
ID = "4117b81"
(Note: The default value data of the said registry entry is 41107b81.)
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Main
Start Page = "http://kr.{BLOCKED}o.com/?ilc=186"
(Note: The default value data of the said registry entry is http://www.microsoft.com/isapi/redir.dll?prd=ie&pver=6&ar=msnhome.)
Dropping Routine
This Trojan drops the following files:
- %User Temp%\fast_ping_setup.exe
- %Desktop%\setup_install.exe
- %User Temp%\WinPro__WP25.exe
- %User Temp%\WizSearch_Install_nanda.exe
- %User Temp%\yahoo_0405.exe
- %User Temp%\IETab__IE06.exe
- %User Temp%\UtilZone__UZ92.exe
- %User Temp%\WizPop_Install_i011.exe
- %User Temp%\InfoBInst_INFO0320002.exe
- %User Temp%\Setup_WAS_ch3689.exe
- %User Temp%\nsg2.tmp\UAC.dll
- %User Temp%\nsg2.tmp\NSISdl.dll
- WinPro_WP25.exe
- %User Temp%\nsg2.tmp\SelfDel.dll
- %Program Files%\WizSearch\WizSearch.exe
- %Program Files%\WizSearch\WizSearch_Uninstall.exe
- %Program Files%\WizSearch\WizSearch_Helper.dll
- %User Temp%\nsx4.tmp\UAC.dll
- %User Temp%\nsx4.tmp\NSISdl.dll
- IETab_IE06.exe
- %User Temp%\nsx4.tmp\SelfDel.dll
- %User Temp%\nsb6.tmp\UAC.dll
- %User Temp%\nsb6.tmp\NSISdl.dll
- UtilZone_UZ92.exe
- %User Temp%\nsb6.tmp\SelfDel.dll
- %Program Files%\WizPop\WizPop.exe
- %Program Files%\WizPop\WizPop_Uninstall.exe
- %Program Files%\WizPop\WizPop_Helper.dll
- %User Temp%\InfoScan_AX_INFO0320002.zip
- %User Temp%\nsr8.tmp\System.dll
- %User Temp%\nsr8.tmp\nspnch3689.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.. %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.. %Program Files% is the default Program Files folder, usually C:\Program Files.)
Other Details
This Trojan connects to the following possibly malicious URL:
- http://www.{BLOCKED}nia.co.kr/program/fast_ping_setup.exe
- http://www.{BLOCKED}nia.co.kr/DATA_files/setup_install.exe
- http://www.{BLOCKED}nia.co.kr/program/WinPro__WP25.exe
- http://www.{BLOCKED}rch.co.kr/core/v3/WizSearch_Install_nanda.exe
- http://www.{BLOCKED}nia.co.kr/program/yahoo_0405.exe
- http://www.{BLOCKED}nia.co.kr/program/IETab__IE06.exe
- http://www.{BLOCKED}nia.co.kr/program/UtilZone__UZ92.exe
- http://www.{BLOCKED}p.co.kr/core/v2/WizPop_Install_i011.exe
- http://dn.{BLOCKED}an.co.kr/cs/down/{BLOCKED}an/binst/InfoBInst_INFO0320002.exe
- http://www.{BLOCKED}nia.co.kr/program/Setup_WAS_ch3689.exe
- http://www.{BLOCKED}rch.co.kr/core/v3/WizSearch.exe
- http://www.{BLOCKED}rch.co.kr/core/v3/WizSearch_Uninstall.exe
- http://www.{BLOCKED}rch.co.kr/core/v3/WizSearch_Helper.dll
- http://www.{BLOCKED}p.co.kr/core/v2/WizPop.exe
- http://www.{BLOCKED}p.co.kr/core/v2/WizPop_Uninstall.exe
- http://www.{BLOCKED}p.co.kr/core/v2/WizPop_Helper.dll
- http://www.{BLOCKED}nia.co.kr/program/fileinfo.asp?{random characters}
- http://home.{BLOCKED}orea.com/program/bundle.asp
- http://www.{BLOCKED}nia.co.kr/program/agree_text.asp?id=0
- http://www.{BLOCKED}rch.co.kr/core/ver/update_nanda.html
- http://www.{BLOCKED}rch.co.kr/core/count.asp?exe=nanda&act=install
- http://ilc.{BLOCKED}z.co.kr/install.asp?id=186&mac=0050569C02C8
- http://www.{BLOCKED}nia.co.kr/program/yahoo_log.asp?mac=0050569C02C8
- http://www.{BLOCKED}p.co.kr/core/ver/update_i011.html
- http://www.{BLOCKED}p.co.kr/core/count.asp?exe=i011&act=install&temp=
- http://dn2.{BLOCKED}an.co.kr/cs/down/{BLOCKED}an/InfoScan_AX_INFO0320002.zip
- http://www.{BLOCKED}p.co.kr/core/count_live.asp?exe=i011
This report is generated via an automated analysis system.
SOLUTION
9.200
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
Restart in Safe Mode
Step 3
Close all opened browser windows
Step 4
Delete this registry key
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\International
- CpMRU
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
- WizSearch
- In HKEY_CURRENT_USER\SOFTWARE
- WizSearch
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
- WizPop
- In HKEY_CURRENT_USER\SOFTWARE
- WizPop
- In HKEY_CURRENT_USER\Software\KMC
- InfoScan
- In HKEY_CLASSES_ROOT
- WizPop_Helper.WizPop.1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WizPop_Helper.WizPop.1
- CLSID
- In HKEY_CLASSES_ROOT
- WizPop_Helper.WizPop
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WizPop_Helper.WizPop
- CLSID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WizPop_Helper.WizPop
- CurVer
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {4B015E18-FD94-4c2c-9CD2-664830506274}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}
- ProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}
- VersionIndependentProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}
- Programmable
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}
- InprocServer32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}
- TypeLib
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
- {2877F67B-5848-49B2-A5EF-C5B337606E7C}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{2877F67B-5848-49B2-A5EF-C5B337606E7C}
- 1.0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{2877F67B-5848-49B2-A5EF-C5B337606E7C}\1.0
- FLAGS
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{2877F67B-5848-49B2-A5EF-C5B337606E7C}\1.0
- 0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{2877F67B-5848-49B2-A5EF-C5B337606E7C}\1.0\0
- win32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{2877F67B-5848-49B2-A5EF-C5B337606E7C}\1.0
- HELPDIR
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
- {F130B2A0-DF83-44AC-BF48-F88A418723B7}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{F130B2A0-DF83-44AC-BF48-F88A418723B7}
- ProxyStubClsid
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{F130B2A0-DF83-44AC-BF48-F88A418723B7}
- ProxyStubClsid32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{F130B2A0-DF83-44AC-BF48-F88A418723B7}
- TypeLib
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\New Windows
- Allow
Step 5
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\Windows\CurrentVersion\Run
- WizSearch = "%Program Files%\WizSearch\WizSearch.exe"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- WizPop = "%Program Files%\WizPop\WizPop.exe"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRU
- Enable = "1"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRU
- Size = "a"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRU
- InitHits = "64"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International\CpMRU
- Factor = "14"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International
- W2KLpk = "1"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\International
- W2KLpk = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WizSearch
- DisplayName = "WizSearch"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WizSearch
- UninstallString = "%Program Files%\WizSearch\WizSearch_Uninstall.exe"
- In HKEY_CURRENT_USER\Software\WizSearch
- installed = "1"
- In HKEY_CURRENT_USER\Software\WizSearch
- pid = "nanda"
- In HKEY_CURRENT_USER\Software\WizSearch
- ver = "1.3"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WizPop
- DisplayName = "À§ÁîÆË"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\WizPop
- UninstallString = "%Program Files%\WizPop\WizPop_Uninstall.exe"
- In HKEY_CURRENT_USER\Software\WizPop
- installed = "1"
- In HKEY_CURRENT_USER\Software\WizPop
- pid = "i011"
- In HKEY_CURRENT_USER\Software\WizPop
- ver = "1.0"
- In HKEY_CURRENT_USER\Software\KMC\InfoScan
- ConfigTDY = "Y"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{4B015E18-FD94-4c2c-9CD2-664830506274}\InprocServer32
- ThreadingModel = "Apartment"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{4B015E18-FD94-4c2c-9CD2-664830506274}
- NoExplorer = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{F130B2A0-DF83-44AC-BF48-F88A418723B7}\TypeLib
- Version = "1.0"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\New Windows\Allow
- *.wizpop.co.kr = "{random values}"
- In HKEY_CURRENT_USER\Software\WizPop
- dd = "7"
Step 6
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_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication
- From: Name = "iexplore.exe"
To: Name = ""iexplore.exe""
- From: Name = "iexplore.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DirectDraw\MostRecentApplication
- From: ID = "4117b81"
To: ID = ""41107b81""
- From: ID = "4117b81"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
- From: Start Page = "http://kr.{BLOCKED}o.com/?ilc=186"
To: Start Page = ""http://www.microsoft.com/isapi/redir.dll?prd=ie&pver=6&ar=msnhome""
- From: Start Page = "http://kr.{BLOCKED}o.com/?ilc=186"
Step 7
Search and delete these files
- %User Temp%\fast_ping_setup.exe
- %Desktop%\setup_install.exe
- %User Temp%\WinPro__WP25.exe
- %User Temp%\WizSearch_Install_nanda.exe
- %User Temp%\yahoo_0405.exe
- %User Temp%\IETab__IE06.exe
- %User Temp%\UtilZone__UZ92.exe
- %User Temp%\WizPop_Install_i011.exe
- %User Temp%\InfoBInst_INFO0320002.exe
- %User Temp%\Setup_WAS_ch3689.exe
- %User Temp%\nsg2.tmp\UAC.dll
- %User Temp%\nsg2.tmp\NSISdl.dll
- WinPro_WP25.exe
- %User Temp%\nsg2.tmp\SelfDel.dll
- %Program Files%\WizSearch\WizSearch.exe
- %Program Files%\WizSearch\WizSearch_Uninstall.exe
- %Program Files%\WizSearch\WizSearch_Helper.dll
- %User Temp%\nsx4.tmp\UAC.dll
- %User Temp%\nsx4.tmp\NSISdl.dll
- IETab_IE06.exe
- %User Temp%\nsx4.tmp\SelfDel.dll
- %User Temp%\nsb6.tmp\UAC.dll
- %User Temp%\nsb6.tmp\NSISdl.dll
- UtilZone_UZ92.exe
- %User Temp%\nsb6.tmp\SelfDel.dll
- %Program Files%\WizPop\WizPop.exe
- %Program Files%\WizPop\WizPop_Uninstall.exe
- %Program Files%\WizPop\WizPop_Helper.dll
- %User Temp%\InfoScan_AX_INFO0320002.zip
- %User Temp%\nsr8.tmp\System.dll
- %User Temp%\nsr8.tmp\nspnch3689.dll
Step 8
Search and delete these folders
- %System Root%\DOCUME~1
- %System Root%\DOCUME~1\Wilbert
- %User Profile%\LOCALS~1
- %User Temp%\nsg2.tmp
- %Program Files%\WizSearch
- %User Temp%\nsx4.tmp
- %User Temp%\nsb6.tmp
- %Program Files%\WizPop
- %User Temp%\nsr8.tmp
Step 9
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_AGENT.ACVY. 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.
Step 10
Restore deleted/modified files and/or registry entries from backup
*Note: Only Microsoft-related files/keys/values will be restored. If this malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.
- %Windows%\inf\intl.PNF
Step 11
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %User Temp%\nsg1.tmp
- %User Temp%\nsg2.tmp
- %User Temp%\nsh3.tmp
- %User Temp%\nsx4.tmp
- %User Temp%\nsw5.tmp
- %User Temp%\nsb6.tmp
- %User Temp%\nsc7.tmp
- %User Temp%\nsr8.tmp
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