PUA.Win32.SearchSuite.AB
HEUR:WebToolbar.Win32.SearchSuite.gen (Kaspersky); iMesh (fs) (not malicious) (Sunbelt); Application:W32/Imesh (FSecure)
Windows
Threat Type: Potentially Unwanted Application
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Potentially Unwanted Application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be manually installed by a user.
TECHNICAL DETAILS
1,431,792 bytes
EXE
Yes
24 Oct 2019
Arrival Details
This Potentially Unwanted Application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It may be manually installed by a user.
Installation
This Potentially Unwanted Application drops the following files:
- %User Temp%\nsf{random number}.tmp\UserInfo.dll
- %User Temp%\nsf{random number}.tmp\registry.dll
- %User Temp%\nsf{random number}.tmp\System.dll
- %User Temp%\nsf{random number}.tmp\LangDLL.dll
- %User Temp%\nsf{random number}.tmp\modern-header.bmp
- %User Temp%\nsf{random number}.tmp\UAC.dll
- %User Temp%\nsf{random number}.tmp\Helper.dll
- %User Temp%\nsf{random number}.tmp\soffer.dll
- %User Temp%\nsf{random number}.tmp\Uninstall.exe
- %Program Files%\iMesh\log.log
- %Desktop%\Continue iMesh installation.lnk
- %User Temp%\nsf{random number}.tmp\nsArray.dll
- %User Temp%\nsf{random number}.tmp\banner_chrome.bmp
- %User Temp%\nsf{random number}.tmp\banner_ff.bmp
- %User Temp%\nsf{random number}.tmp\banner_ie.bmp
- %User Temp%\nsf{random number}.tmp\banner.bmp
- %User Temp%\nsf{random number}.tmp\Ask_Logo.bmp
- %User Temp%\nsf{random number}.tmp\ask_eula.rtf
- %User Temp%\nsf{random number}.tmp\banner_chrome.bmp
- %User Temp%\nsf{random number}.tmp\banner_ff.bmp
- %User Temp%\nsf{random number}.tmp\banner_ie.bmp
- %User Temp%\nsf{random number}.tmp\banner.bmp
- %User Temp%\nsf{random number}.tmp\Ask_Logo.bmp
- %User Temp%\nsf{random number}.tmp\ask_eula.rtf
- %User Temp%\sot{random characters}.tmp
- %User Temp%\nsf{random number}.tmp\nsisXML.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(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Desktop% is the current user's desktop, which is usually C:\Documents and Settings\{User Name}\Desktop on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\Desktop on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It creates the following folders:
- %Program Files%\iMesh
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Other System Modifications
This Potentially Unwanted Application adds the following registry keys:
hkey_classes_root\applications\{malware file name}.exe
It adds the following registry entries:
HKEY_LOCAL_MACHINE\Software\Classes\
Applications\{malware file name}.exe
IsHostApp = ""
Other Details
This Potentially Unwanted Application connects to the following possibly malicious URL:
- http://www.{BLOCKED}offerdelivery.com/www/delivery/so/init_offer.php?offer_index=1&offer_id=51&sysid=1&appid=0&ln=en&ab=IE&db=Chrome&osver=6.1&ostype=win32&osl=ja-JP&pver=&ptype=n
- http://{BLOCKED}e.{BLOCKED}h.com/install_statistics.php
SOLUTION
9.850
2.141.00
24 Jan 2019
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Identify and terminate files detected as PUA.Win32.SearchSuite.AB
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
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_classes_root\applications
- {malware file name}.exe
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_LOCAL_MACHINE\Software\Classes\Applications\{malware file name}.exe
- IsHostApp = ""
- IsHostApp = ""
Step 6
Search and delete this file
- %User Temp%\nsf{random number}.tmp\UserInfo.dll
- %User Temp%\nsf{random number}.tmp\registry.dll
- %User Temp%\nsf{random number}.tmp\System.dll
- %User Temp%\nsf{random number}.tmp\LangDLL.dll
- %User Temp%\nsf{random number}.tmp\modern-header.bmp
- %User Temp%\nsf{random number}.tmp\UAC.dll
- %User Temp%\nsf{random number}.tmp\Helper.dll
- %User Temp%\nsf{random number}.tmp\soffer.dll
- %User Temp%\nsf{random number}.tmp\Uninstall.exe
- %Program Files%\iMesh\log.log
- %Desktop%\Continue iMesh installation.lnk
- %User Temp%\nsf{random number}.tmp\nsArray.dll
- %User Temp%\nsf{random number}.tmp\banner_chrome.bmp
- %User Temp%\nsf{random number}.tmp\banner_ff.bmp
- %User Temp%\nsf{random number}.tmp\banner_ie.bmp
- %User Temp%\nsf{random number}.tmp\banner.bmp
- %User Temp%\nsf{random number}.tmp\Ask_Logo.bmp
- %User Temp%\nsf{random number}.tmp\ask_eula.rtf
- %User Temp%\nsf{random number}.tmp\banner_chrome.bmp
- %User Temp%\nsf{random number}.tmp\banner_ff.bmp
- %User Temp%\nsf{random number}.tmp\banner_ie.bmp
- %User Temp%\nsf{random number}.tmp\banner.bmp
- %User Temp%\nsf{random number}.tmp\Ask_Logo.bmp
- %User Temp%\nsf{random number}.tmp\ask_eula.rtf
- %User Temp%\sot{random characters}.tmp
- %User Temp%\nsf{random number}.tmp\nsisXML.dll
Step 7
Search and delete this folder
- %Program Files%\iMesh
Step 8
Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.SearchSuite.AB. 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 the following Trend Micro Support pages for more information:
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