PUA.Win32.HWIDChanger.A
Trojan.Win32.Generic!BT (Sunbelt)
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.
TECHNICAL DETAILS
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.
Installation
This Potentially Unwanted Application creates the following folders:
- %System Root%\Users
- %User Profile%\AppData
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Dropping Routine
This Potentially Unwanted Application drops the following files:
- %Application Data%\holder0.aiph
- %Windows%\Tasks\C__Users_ADMINI~1_AppData_Local_Temp_{malware file name}.job
- %Application Data%\decoder.dll
- %All Users Profile%\Microsoft\Network\Downloader\qmgr1.dat
- %User Temp%\HWIDkey_Changer.exe
- %All Users Profile%\Microsoft\Network\Downloader\qmgr0.dat
- %Application Data%\277B4C0\HWIDkey_Changer.msi
(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.. %All Users Profile% is the common user's profile folder, which is usually C:\Documents and Settings\All Users on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit). . %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).)
This report is generated via an automated analysis system.
SOLUTION
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
Search and delete these components
- %Application Data%\holder0.aiph
- %Windows%\Tasks\C__Users_ADMINI~1_AppData_Local_Temp_{malware file name}.job
- %Application Data%\decoder.dll
- %All Users Profile%\Microsoft\Network\Downloader\qmgr1.dat
- %User Temp%\HWIDkey_Changer.exe
- %All Users Profile%\Microsoft\Network\Downloader\qmgr0.dat
- %Application Data%\277B4C0\HWIDkey_Changer.msi
Step 3
Search and delete these folders
- %System Root%\Users
- %User Profile%\AppData
Step 4
Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.HWIDChanger.A. 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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