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HackTool.Win32.WinTool.A

April 23, 2020
 PLATFORM:

Windows

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Hacking Tool

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


This Hacking Tool arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It disables Task Manager, Registry Editor, and Folder Options.

  TECHNICAL DETAILS

File Size:

4,846,592 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

23 Apr 2020

Arrival Details

This Hacking Tool arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other System Modifications

This Hacking Tool modifies the following file(s):

  • %User Temp%\AdobeARM.log

(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).)

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows\OneDrive
DisableFileSyncNGSC = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
NonEnum
{450D8FBA-AD25-11D0-98A8-0800361B1103} = ""

HKEY_CURRENT_USER\Control Panel\Desktop
SmoothScroll = ""

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer
AlwaysUnloadDLL = ""

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\CLASS\{4D36E96A-E325-11CE-BFC1-08002BE10318}\
0000
EnableUDMA66 = ""

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Tcpip\Parameters
DisableTaskOffload = ""

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\Print
DisableServerThread = ""

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\LanmanServer\Parameters
Hidden = ""

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Tcpip\Parameters
PerformRouterDiscovery = ""

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Tcpip\Parameters
EnablePMTUDiscovery = ""

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Tcpip\Parameters
EnablePMTUBHDetect = ""

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Tcpip\Parameters
EnableDeadGWDetect = ""

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Tcpip\Parameters
NoNameReleaseOnDemand = ""

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Tcpip\Parameters
SackOpts = ""

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\NetBT\Parameters
RandomAdapter = ""

It modifies the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion
RegDone = ""

It creates the following registry entry(ies) to disable Task Manager, Registry Tools and Folder Options:

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoDesktop = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoActiveDesktop = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoNetHood = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
HideClock = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoManageMyComputerVerb = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoLowDiskSpaceChecks = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoCDBurning = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoStartMenuPinnedList = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoStartMenuMFUprogramsList = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoUserNameInStartMenu = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
StartmenuLogoff = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoStartMenuSubFolders = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoCommonGroups = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoRecentDocsMenu = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
ClearRecentDocsOnExit = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoPrinterTabs = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoDeletePrinter = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoAddPrinter = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoPrinters = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoNetworkConnections = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoFavoritesMenu = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoRun = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoFind = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoClose = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoSetFolders = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoSMHelp = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoChangeStartMenu = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoViewContextMenu = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoFileMenu = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoDrives = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoControlPanel = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoShellSearchButton = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoToolbarCustomize = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoRecentDocsNetHood = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoChangeAnimation = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoChangeKeyboardNavigationIndicators = ""

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
NoThemesTab = ""

Dropping Routine

This Hacking Tool drops the following files:

  • %User Temp%\ASPNETSetup_00000.log
  • %User Temp%\Microsoft .NET Framework 4.5.2 Setup_20161212_135033207-MSI_netfx_Full_GDR_x64.msi.txt
  • %User Temp%\MSI7e436.LOG
  • %Windows%\Temp\TS_9E74.tmp
  • %User Temp%\wintoolsnet.ini
  • %Windows%\Temp\TS_A385.tmp
  • %User Temp%\dd_SetupUtility.txt
  • %User Temp%\MSI18620.LOG
  • %Windows%\Temp\TS_906D.tmp
  • %Windows%\Temp\TS_BF9F.tmp
  • %User Temp%\ASPNETSetup_00001.log
  • %User Temp%\{username}.bmp
  • %User Temp%\MSI11747.LOG
  • %Windows%\Temp\DMIC57F.tmp
  • %User Temp%\MSI5a7c3.LOG
  • %User Temp%\MSIa6383.LOG
  • %User Temp%\MSId1a0.LOG
  • %Windows%\Temp\vmware-SYSTEM
  • %Windows%\Temp\sciD376.tmp
  • %User Temp%\ose00000.exe
  • %Windows%\Temp\TS_A412.tmp
  • %User Temp%\MSIcaa33.LOG
  • %User Temp%\dd_vcredistUI0FD5.txt
  • %User Temp%\MSIbee93.LOG
  • %User Temp%\au-descriptor-1.8.0_211-b12.xml
  • %User Temp%\Low
  • %Windows%\Temp\TS_735A.tmp
  • %User Temp%\acrocef_low
  • %User Temp%\hsperfdata_{username}
  • %User Temp%\RGI282A.tmp-tmp
  • %User Temp%\MSIbab6b.LOG
  • %User Temp%\MSIbaba9.LOG
  • %User Temp%\SetupExe(201701240615299E0).log
  • %User Temp%\MSI6f768.LOG
  • %User Temp%\dd_vcredistUI0FC1.txt
  • %User Temp%\chrome_BITS_3756_19263
  • %User Temp%\dd_wcf_CA_smci_20161212_135110_351.txt
  • %User Temp%\MSI20ab9.LOG
  • %User Temp%\MSI547d8.LOG
  • %User Temp%\dd_NDP452-KB2901907-x86-x64-AllOS-ENU_decompression_log.txt
  • %User Temp%\MSI733bc.LOG
  • %User Temp%\jusched.log
  • %User Temp%\MSI27204.LOG
  • %User Temp%\wmsetup.log
  • %User Temp%\StructuredQuery.log
  • %Windows%\Temp\MpSigStub.log
  • %Windows%\Temp\SDIAG_382c0e08-1d14-4bb1-b2c6-3c5c068fc13a
  • %User Temp%\FXSAPIDebugLogFile.txt
  • %Windows%\Temp\TS_987A.tmp
  • %User Temp%\dd_vcredistMSI0FC1.txt
  • %Windows%\Temp\TS_A1EE.tmp
  • %User Temp%\MSI25c23.LOG
  • %User Temp%\MSI351f6.LOG
  • %User Temp%\WebInstaller
  • %User Temp%\Guest.bmp
  • {malware file path and name}
  • %User Temp%\mozilla-temp-files
  • %User Temp%\MSIb5e83.LOG
  • %Windows%\Temp\TS_BE95.tmp
  • %User Temp%\dd_vcredistMSI0FD5.txt
  • %User Temp%\Microsoft .NET Framework 4.5.2 Setup_20161212_135033207.html
  • %User Temp%\MSI97997.LOG
  • %Windows%\Temp\Crashpad
  • %User Temp%\AdobeSFX.log
  • %User Temp%\dd_wcf_CA_smci_20161212_135109_353.txt
  • %User Temp%\jawshtml.html
  • %User Temp%\MSI19f3b.LOG
  • %Windows%\Temp\TS_97FC.tmp
  • %User Temp%\Deployment
  • %User Temp%\MSIaaade.LOG
  • %User Temp%\Tom.bmp
  • %User Temp%\JavaDeployReg.log
  • %User Temp%\MSIa2c4d.LOG
  • %Windows%\Temp\TS_73C9.tmp
  • %User Temp%\chrome_installer.log
  • %Windows%\Temp\MpCmdRun.log
  • %User Temp%\vminst.log_20170124_112725.log
  • %User Temp%\WPDNSE
  • %User Temp%\MSIf9aa9.LOG
  • %Windows%\Temp\3FF566963EA2A1249A53B8470F6A06FC-Sigs
  • %User Temp%\Adobe_ADMLogs
  • %User Temp%\vmmsi.log_20170124_112725.log

(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).. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.850

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

Enable Registry Editor, Task Manager, and Folder options

[ Learn More ]
By doing this step, you also enable other applications/programs disabled by this malware/grayware/spyware. Screen reader support enabled.

Step 3

Delete this registry value

[ Learn More ]

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\Policies\Microsoft\Windows\OneDrive
    • DisableFileSyncNGSC = "0"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\NonEnum
    • {450D8FBA-AD25-11D0-98A8-0800361B1103} = ""
  • In HKEY_CURRENT_USER\Control Panel\Desktop
    • SmoothScroll = ""
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer
    • AlwaysUnloadDLL = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\CLASS\{4D36E96A-E325-11CE-BFC1-08002BE10318}\0000
    • EnableUDMA66 = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters
    • DisableTaskOffload = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Print
    • DisableServerThread = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\LanmanServer\Parameters
    • Hidden = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters
    • PerformRouterDiscovery = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters
    • EnablePMTUDiscovery = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters
    • EnablePMTUBHDetect = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters
    • EnableDeadGWDetect = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters
    • NoNameReleaseOnDemand = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters
    • SackOpts = ""
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\NetBT\Parameters
    • RandomAdapter = ""

Step 4

Restore these modified registry values

[ Learn More ]

Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
    • RegDone = ""

Step 5

Search and delete these components

[ Learn More ]
There may be some components that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %User Temp%\ASPNETSetup_00000.log
  • %User Temp%\Microsoft .NET Framework 4.5.2 Setup_20161212_135033207-MSI_netfx_Full_GDR_x64.msi.txt
  • %User Temp%\MSI7e436.LOG
  • %Windows%\Temp\TS_9E74.tmp
  • %User Temp%\wintoolsnet.ini
  • %Windows%\Temp\TS_A385.tmp
  • %User Temp%\dd_SetupUtility.txt
  • %User Temp%\MSI18620.LOG
  • %Windows%\Temp\TS_906D.tmp
  • %Windows%\Temp\TS_BF9F.tmp
  • %User Temp%\ASPNETSetup_00001.log
  • %User Temp%\{username}.bmp
  • %User Temp%\MSI11747.LOG
  • %Windows%\Temp\DMIC57F.tmp
  • %User Temp%\MSI5a7c3.LOG
  • %User Temp%\MSIa6383.LOG
  • %User Temp%\MSId1a0.LOG
  • %Windows%\Temp\vmware-SYSTEM
  • %Windows%\Temp\sciD376.tmp
  • %User Temp%\ose00000.exe
  • %Windows%\Temp\TS_A412.tmp
  • %User Temp%\MSIcaa33.LOG
  • %User Temp%\dd_vcredistUI0FD5.txt
  • %User Temp%\MSIbee93.LOG
  • %User Temp%\au-descriptor-1.8.0_211-b12.xml
  • %User Temp%\Low
  • %Windows%\Temp\TS_735A.tmp
  • %User Temp%\acrocef_low
  • %User Temp%\hsperfdata_{username}
  • %User Temp%\RGI282A.tmp-tmp
  • %User Temp%\MSIbab6b.LOG
  • %User Temp%\MSIbaba9.LOG
  • %User Temp%\SetupExe(201701240615299E0).log
  • %User Temp%\MSI6f768.LOG
  • %User Temp%\dd_vcredistUI0FC1.txt
  • %User Temp%\chrome_BITS_3756_19263
  • %User Temp%\dd_wcf_CA_smci_20161212_135110_351.txt
  • %User Temp%\MSI20ab9.LOG
  • %User Temp%\MSI547d8.LOG
  • %User Temp%\dd_NDP452-KB2901907-x86-x64-AllOS-ENU_decompression_log.txt
  • %User Temp%\MSI733bc.LOG
  • %User Temp%\jusched.log
  • %User Temp%\MSI27204.LOG
  • %User Temp%\wmsetup.log
  • %User Temp%\StructuredQuery.log
  • %Windows%\Temp\MpSigStub.log
  • %Windows%\Temp\SDIAG_382c0e08-1d14-4bb1-b2c6-3c5c068fc13a
  • %User Temp%\FXSAPIDebugLogFile.txt
  • %Windows%\Temp\TS_987A.tmp
  • %User Temp%\dd_vcredistMSI0FC1.txt
  • %Windows%\Temp\TS_A1EE.tmp
  • %User Temp%\MSI25c23.LOG
  • %User Temp%\MSI351f6.LOG
  • %User Temp%\WebInstaller
  • %User Temp%\Guest.bmp
  • {malware file path and name}
  • %User Temp%\mozilla-temp-files
  • %User Temp%\MSIb5e83.LOG
  • %Windows%\Temp\TS_BE95.tmp
  • %User Temp%\dd_vcredistMSI0FD5.txt
  • %User Temp%\Microsoft .NET Framework 4.5.2 Setup_20161212_135033207.html
  • %User Temp%\MSI97997.LOG
  • %Windows%\Temp\Crashpad
  • %User Temp%\AdobeSFX.log
  • %User Temp%\dd_wcf_CA_smci_20161212_135109_353.txt
  • %User Temp%\jawshtml.html
  • %User Temp%\MSI19f3b.LOG
  • %Windows%\Temp\TS_97FC.tmp
  • %User Temp%\Deployment
  • %User Temp%\MSIaaade.LOG
  • %User Temp%\Tom.bmp
  • %User Temp%\JavaDeployReg.log
  • %User Temp%\MSIa2c4d.LOG
  • %Windows%\Temp\TS_73C9.tmp
  • %User Temp%\chrome_installer.log
  • %Windows%\Temp\MpCmdRun.log
  • %User Temp%\vminst.log_20170124_112725.log
  • %User Temp%\WPDNSE
  • %User Temp%\MSIf9aa9.LOG
  • %Windows%\Temp\3FF566963EA2A1249A53B8470F6A06FC-Sigs
  • %User Temp%\Adobe_ADMLogs
  • %User Temp%\vmmsi.log_20170124_112725.log

Step 6

Scan your computer with your Trend Micro product to delete files detected as HackTool.Win32.WinTool.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:

Step 7

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.

    • %User Temp%\AdobeARM.log


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