PUA.Win32.Burden.K
VHO:AdWare.Win32.Burden.gen (KASPERSKY)
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 drops the following files:
- {Malware File Path}\ComputerZ.set
- {Malware File Path}\config.set
- %Application Data%\360wp\User Data\360WPFav.json
- %Application Data%\360wp\User Data\360WPSetHistory.json
(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).)
It adds the following processes:
- %System%\cmd.exe /c powercfg /requestoverride PROCESS CefView.exe AWAYMODE DISPLAY SYTEM
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
Other Details
This Potentially Unwanted Application adds the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
360wpapp
DisplayIcon = birdwp.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
360wpapp
InstallLocation = {Malware File Path}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
360wpapp
Publisher = 360{Chinese characters}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
360wpapp
UninstallString = {Malware File Path}\Uninstall.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
360wpapp
URLInfoAbout = http://bizhi.360.cn
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
360wpapp
DisplayName = 360{Chinese characters}
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\Power\PowerRequestOverride\
Process
CefView.exe = 7
HKEY_LOCAL_MACHINE\SOFTWARE\Master2\
Liveup
mid = {Hev Values}
HKEY_LOCAL_MACHINE\SOFTWARE\ComMaster
m2 = {Hex Values}
HKEY_CURRENT_USER\Software\LiveUpdate360
644 = {Hex Values}
HKEY_CURRENT_USER\Software\360WallPaper
It connects to the following possibly malicious URL:
- http://ss.{BLOCKED}tech.cn
- http://shcdn-wp.{BLOCKED}tech.cn
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
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
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\SYSTEM\ControlSet001\Control\Power\PowerRequestOverride\Process
- CefView.exe
- CefView.exe
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\360wpapp
- DisplayName
- DisplayName
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\360wpapp
- DisplayIcon
- DisplayIcon
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\360wpapp
- InstallLocation
- InstallLocation
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\360wpapp
- Publisher
- Publisher
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\360wpapp
- UninstallString
- UninstallString
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\360wpapp
- URLInfoAbout
- URLInfoAbout
- In HKEY_LOCAL_MACHINE\SOFTWARE\Master2\Liveup
- mid
- mid
- In HKEY_LOCAL_MACHINE\SOFTWARE\ComMaster
- m2
- m2
- In HKEY_CURRENT_USER\Software\LiveUpdate360
- 644
- 644
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_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
- 360wpapp
- 360wpapp
- In HKEY_LOCAL_MACHINE\SOFTWARE
- Master2
- Master2
- In HKEY_LOCAL_MACHINE\SOFTWARE
- ComMaster
- ComMaster
- In HKEY_CURRENT_USER\Software
- LiveUpdate360
- LiveUpdate360
- In HKEY_CURRENT_USER\Software
- 360WallPaper
- 360WallPaper
Step 5
Search and delete these files
- {Malware File Path}\ComputerZ.set
- {Malware File Path}\config.set
- %Application Data%\360wp\User Data\360WPFav.json
- %Application Data%\360wp\User Data\360WPSetHistory.json
Step 6
Scan your computer with your Trend Micro product to delete files detected as PUA.Win32.Burden.K. 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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