ADW_ENUMERATE
Windows 2000, Windows XP, Windows Server 2003

Threat Type: Adware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This adware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It deletes itself after execution.
TECHNICAL DETAILS
449,568 bytes
EXE
Yes
20 Aug 2013
Arrival Details
This adware 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 adware creates the following folders:
- %System Root%\DOCUME~1
- %System Root%\DOCUME~1\Wilbert
- %User Profile%\LOCALS~1
- %User Temp%\nsm6.tmp
- %System Root%\Documents and Settings\Wilbert
- %User Profile%\Application Data\revealer
- %User Temp%\nsb20.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:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %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.)
Autostart Technique
This adware adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
revealerApp = "%User Profile%\revealer\revealer.exe Runcmd"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
revealerApps = "%User Profile%\revealer\revealerul.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\{A1B22260-52C2-47C1-B497-1971BE481DC1}
Other System Modifications
This adware deletes the following files:
- %User Temp%\nsr2.tmp
- %User Temp%\nsm6.tmp
- %System Root%\DelUS.bat
- %User Temp%\nsm1C.tmp
- %User Temp%\nsb20.tmp
- %User Profile%\Application Data\REVEAL~1.EXE
(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.. %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.)
It adds the following registry keys:
HKEY_CURRENT_USER\SoftWare\featiel\
in
HKEY_CURRENT_USER\Software\featiel\
out
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
AppID\{50FB8DDF-1F59-4AF8-8247-B68AB9FEBF6D}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
AppID\revealertop.DLL
HKEY_CLASSES_ROOT\revealertop.revealertopSO.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
revealertop.revealertopSO.1\CLSID
HKEY_CLASSES_ROOT\revealertop.revealertopSO
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
revealertop.revealertopSO\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
revealertop.revealertopSO\CurVer
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}\VersionIndependentProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}\Programmable
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{91B63983-9112-4A1F-97C1-0C84EBFB6C61}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{91B63983-9112-4A1F-97C1-0C84EBFB6C61}\1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{91B63983-9112-4A1F-97C1-0C84EBFB6C61}\1.0\
FLAGS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{91B63983-9112-4A1F-97C1-0C84EBFB6C61}\1.0\
0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{91B63983-9112-4A1F-97C1-0C84EBFB6C61}\1.0\
0\win32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{91B63983-9112-4A1F-97C1-0C84EBFB6C61}\1.0\
HELPDIR
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{FF902450-1074-4D40-9710-5FCEEC5EDCE2}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{FF902450-1074-4D40-9710-5FCEEC5EDCE2}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{FF902450-1074-4D40-9710-5FCEEC5EDCE2}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{FF902450-1074-4D40-9710-5FCEEC5EDCE2}\TypeLib
HKEY_CURRENT_USER\Software\revealerapp\
data
HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
revealerApp_uninstall
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\TabbedBrowsing
It adds the following registry entries:
HKEY_CURRENT_USER\Software\featiel\
in
pack = "20130514"
HKEY_CURRENT_USER\Software\featiel\
out
falvet = "u"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
AppID\revealertop.DLL
AppID = "{50FB8DDF-1F59-4AF8-8247-B68AB9FEBF6D}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}\InprocServer32
ThreadingModel = "Apartment"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}
AppID = "{50FB8DDF-1F59-4AF8-8247-B68AB9FEBF6D}"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{A1B22260-52C2-47C1-B497-1971BE481DC1}
NoExplorer = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{FF902450-1074-4D40-9710-5FCEEC5EDCE2}\TypeLib
Version = "1.0"
HKEY_CURRENT_USER\Software\revealerapp\
data
Ver_Sb1 = "20130514"
HKEY_CURRENT_USER\Software\revealerapp\
data
Ver_Sb2 = "20130514"
HKEY_CURRENT_USER\Software\revealerapp\
data
verup = "20130514"
HKEY_CURRENT_USER\Software\revealerapp
verup = "20130514"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
revealerApp_uninstall
DisplayName = "Revealing Top Search App"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
revealerApp_uninstall
UninstallString = "%User Profile%\revealer\uninstall.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
revealerApp_uninstall
DisplayIcon = "%User Profile%\revealer\uninstall.exe"
HKEY_CURRENT_USER\Software\revealerapp
verup = "20130617"
HKEY_CURRENT_USER\Software\revealerapp
revealerdtapp = "20130617"
HKEY_CURRENT_USER\Software\revealerapp
checkvalue = "0"
HKEY_CURRENT_USER\Software\revealerapp
checkvalue = "1"
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\Main
AllowWindowReuse = "0"
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\TabbedBrowsing
ShortcutBehavior = "0"
HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\New Windows
PopupMgr = "no"
Dropping Routine
This adware drops the following files:
- %User Temp%\nsg4.tmp
- %User Temp%\nsm6.tmp\DLLWebCount.dll
- %User Temp%\nsm6.tmp\DataCheck.dll
- %User Profile%\revealer\revealer.exe
- %User Profile%\revealer\revealerul.exe
- %User Profile%\revealer\revealertop.dll
- %User Profile%\revealer\uninstall.exe
- %User Temp%\nsm6.tmp\SelfDelete.dll
- \DelUS.bat
- %User Profile%\Application Data\Revealing_App_update_20130617.exe
- %User Temp%\nsm1E.tmp
- %User Temp%\nsb20.tmp\KillProcDLL.dll
- %User Temp%\nsb20.tmp\DLLWebCount.dll
- %User Temp%\nsb20.tmp\SelfDelete.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.. %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 Details
This adware connects to the following possibly malicious URL:
- http://down.{BLOCKED}er.co.kr/update/Revealing_App_update_20130617.exe
- http://ul.{BLOCKED}er.co.kr/cnt/index.php?pid=ulapp&type=1
- http://revealer.{BLOCKED}o.krcnt/index_pre.php?pid=ulapp05&type=1
- http://revealer.{BLOCKED}o.krcheck/ulapp/update/revealing.php
- http://ul.{BLOCKED}er.co.krcnt/index.php?pid=ulapp&type=4
- http://ul.{BLOCKED}er.co.krcheck2/check.php
- http://ul.{BLOCKED}er.co.krcheck2/revealdata.php
- http://ul.{BLOCKED}er.co.krcnt/index.php?pid=daramg&type=4
- http://ul.{BLOCKED}er.co.krcheck/daramg/check.php
- http://ul.{BLOCKED}er.co.krcnt/index.php?pid=enterjoy&type=4
- http://ul.{BLOCKED}er.co.krcheck/enterjoy/check.php
- http://ul.{BLOCKED}er.co.krcnt/index.php?pid=goalplay&type=4
- http://ul.{BLOCKED}er.co.krcheck/goalplay/check.php
- http://ul.{BLOCKED}er.co.kr/cnt/index.php?pid=ulapp&type=6
It deletes itself after execution.
This report is generated via an automated analysis system.
SOLUTION
9.300
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
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\featiel
- in
- In HKEY_CURRENT_USER\Software\featiel
- out
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID
- {50FB8DDF-1F59-4AF8-8247-B68AB9FEBF6D}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID
- revealertop.DLL
- In HKEY_CLASSES_ROOT
- revealertop.revealertopSO.1
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\revealertop.revealertopSO.1
- CLSID
- In HKEY_CLASSES_ROOT
- revealertop.revealertopSO
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\revealertop.revealertopSO
- CLSID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\revealertop.revealertopSO
- CurVer
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {A1B22260-52C2-47C1-B497-1971BE481DC1}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}
- ProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}
- VersionIndependentProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}
- Programmable
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}
- InprocServer32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}
- TypeLib
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
- {91B63983-9112-4A1F-97C1-0C84EBFB6C61}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{91B63983-9112-4A1F-97C1-0C84EBFB6C61}
- 1.0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{91B63983-9112-4A1F-97C1-0C84EBFB6C61}\1.0
- FLAGS
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{91B63983-9112-4A1F-97C1-0C84EBFB6C61}\1.0
- 0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{91B63983-9112-4A1F-97C1-0C84EBFB6C61}\1.0\0
- win32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{91B63983-9112-4A1F-97C1-0C84EBFB6C61}\1.0
- HELPDIR
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
- {FF902450-1074-4D40-9710-5FCEEC5EDCE2}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{FF902450-1074-4D40-9710-5FCEEC5EDCE2}
- ProxyStubClsid
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{FF902450-1074-4D40-9710-5FCEEC5EDCE2}
- ProxyStubClsid32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{FF902450-1074-4D40-9710-5FCEEC5EDCE2}
- TypeLib
- In HKEY_CURRENT_USER\Software\revealerapp
- data
- In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall
- revealerApp_uninstall
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer
- TabbedBrowsing
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
- revealerApp = "%User Profile%\revealer\revealer.exe Runcmd"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- revealerApps = "%User Profile%\revealer\revealerul.exe"
- In HKEY_CURRENT_USER\Software\featiel\in
- pack = "20130514"
- In HKEY_CURRENT_USER\Software\featiel\out
- falvet = "u"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\AppID\revealertop.DLL
- AppID = "{50FB8DDF-1F59-4AF8-8247-B68AB9FEBF6D}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}\InprocServer32
- ThreadingModel = "Apartment"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A1B22260-52C2-47C1-B497-1971BE481DC1}
- AppID = "{50FB8DDF-1F59-4AF8-8247-B68AB9FEBF6D}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{A1B22260-52C2-47C1-B497-1971BE481DC1}
- NoExplorer = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{FF902450-1074-4D40-9710-5FCEEC5EDCE2}\TypeLib
- Version = "1.0"
- In HKEY_CURRENT_USER\Software\revealerapp\data
- Ver_Sb1 = "20130514"
- In HKEY_CURRENT_USER\Software\revealerapp\data
- Ver_Sb2 = "20130514"
- In HKEY_CURRENT_USER\Software\revealerapp\data
- verup = "20130514"
- In HKEY_CURRENT_USER\Software\revealerapp
- verup = "20130514"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\revealerApp_uninstall
- DisplayName = "Revealing Top Search App"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\revealerApp_uninstall
- UninstallString = "%User Profile%\revealer\uninstall.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\revealerApp_uninstall
- DisplayIcon = "%User Profile%\revealer\uninstall.exe"
- In HKEY_CURRENT_USER\Software\revealerapp
- verup = "20130617"
- In HKEY_CURRENT_USER\Software\revealerapp
- revealerdtapp = "20130617"
- In HKEY_CURRENT_USER\Software\revealerapp
- checkvalue = "0"
- In HKEY_CURRENT_USER\Software\revealerapp
- checkvalue = "1"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
- AllowWindowReuse = "0"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\TabbedBrowsing
- ShortcutBehavior = "0"
- In HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\New Windows
- PopupMgr = "no"
Step 6
Search and delete these components
- %User Temp%\nsg4.tmp
- %User Temp%\nsm6.tmp\DLLWebCount.dll
- %User Temp%\nsm6.tmp\DataCheck.dll
- %User Profile%\revealer\revealer.exe
- %User Profile%\revealer\revealerul.exe
- %User Profile%\revealer\revealertop.dll
- %User Profile%\revealer\uninstall.exe
- %User Temp%\nsm6.tmp\SelfDelete.dll
- \DelUS.bat
- %User Profile%\Application Data\Revealing_App_update_20130617.exe
- %User Temp%\nsm1E.tmp
- %User Temp%\nsb20.tmp\KillProcDLL.dll
- %User Temp%\nsb20.tmp\DLLWebCount.dll
- %User Temp%\nsb20.tmp\SelfDelete.dll
Step 7
Search and delete these folders
- %System Root%\DOCUME~1
- %System Root%\DOCUME~1\Wilbert
- %User Profile%\LOCALS~1
- %User Temp%\nsm6.tmp
- %System Root%\Documents and Settings\Wilbert
- %User Profile%\Application Data\revealer
- %User Temp%\nsb20.tmp
Step 8
Restart in normal mode and scan your computer with your Trend Micro product for files detected as ADW_ENUMERATE. 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 9
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%\nsr2.tmp
- %User Temp%\nsm6.tmp
- %System Root%\DelUS.bat
- %User Temp%\nsm1C.tmp
- %User Temp%\nsb20.tmp
- %User Profile%\Application Data\REVEAL~1.EXE
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