Trojan.Win32.NEUREVT.WLDD

This Trojan 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.

File Size:

987,136 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

13 May 2020

Arrival Details

This Trojan 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 Trojan adds the following processes:

%Windows%\SysWOW64\explorer.exe
%User Temp%\m5a73ksm7uc1_1.exe /suac
%System%\svchost.exe -k LocalServiceAndNoImpersonation
%Windows%\Microsoft.NET\Framework\v4.0.30319\mscorsvw.exe
%Windows%\Microsoft.NET\Framework64\v4.0.30319\mscorsvw.exe
%System%\sppsvc.exe
"%System Root%\Program Files\Windows Media Player\wmpnetwk.exe"
%System%\svchost.exe -k WerSvcGroup
%System%\sc.exe start w32time task_started
%System%\sdclt.exe /CONFIGNOTIFICATION
taskhost.exe SYSTEM
%System%\wsqmcons.exe
taskhost.exe $(Arg0)
%System%\svchost.exe -k LocalService
%System%\schtasks.exe /delete /f /TN "Microsoft\Windows\Customer Experience Improvement Program\Uploader"

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.. %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).. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)

It creates the following folders:

%All Users Profile%\Google Updater 2.09

(Note: %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). )

Other System Modifications

This Trojan deletes the following files:

%All Users Profile%\Google Updater 2.09\desktop.ini
%All Users Profile%\Google Updater 2.09\m5a73ksm7uc1.exe:Zone.Identifier
%AppDataLocal%\Microsoft\Internet Explorer\VersionManager\versionlist.xml

(Note: %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). . %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It adds the following registry entries:

HKEY_CURRENT_USER\Software\AppDataLow\
Google Updater
LastUpdate = "\x81\xf5l\x9d\xcb\x1f\x041\xa3\xd6\xdb}\xa5k\x94\xe7"

HKEY_CURRENT_USER\Software\AppDataLow\
Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\
31b643bcee3b
72335710f377fc = "\x12\x00\x08\x00\x00\x01\x00\xe4\x07\x08\x00\x00\x01\x00\xe4\x07"

HKEY_CURRENT_USER\Software\AppDataLow\
Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\
31b643bcee3b
ccf4560c448c987299 = "\x00\x00\x00\x00"

HKEY_CURRENT_USER\Software\AppDataLow\
Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\
31b643bcee3b
8a39a5518f345 = "\x00\x00\x00\x00"

HKEY_CURRENT_USER\Software\AppDataLow\
Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\
31b643bcee3b
3ebd6c510ff4684aa9 = "\x00\x00\x00\x00"

HKEY_CURRENT_USER\Software\AppDataLow\
Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\
31b643bcee3b
8507f0ede4f = "\x00\x00\x00\x00"

HKEY_CURRENT_USER\Software\AppDataLow\
Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\
31b643bcee3b
51af665bebc38cca82 = "\x00\x00\x00\x00"

HKEY_CURRENT_USER\Software\AppDataLow\
Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\
31b643bcee3b
5e28126e721 = "\x00\x00\x00\x00"

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile
EnableFirewall = "0"

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
services\SharedAccess\Parameters\
FirewallPolicy\PublicProfile
EnableFirewall = "0"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\MpsSvc
Start = "4"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\NetworkList\
Nla\Cache\Intranet
{89BCDCB3-5725-45A2-94AB-2D6B641209B0} = "\x00PV\xbcK\xa3"

HKEY_CURRENT_USER\Software\AppDataLow\
Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\
31b643bcee3b
66a722cee7ba32009 = "\x01\x00\x00\x00"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
mbamgui.exe
Debugger = "qcqj.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
mbam.exe
Debugger = "bvez.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
Mrtstub.exe
Debugger = "vtqe.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
MRT.exe
Debugger = "okjm.exe"

HKEY_CURRENT_USER\Software\AppDataLow\
Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\
31b643bcee3b
f19a6da19beb27ffcce = "\x05\xee\x00\x00"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
winmgr108.exe
Debugger = "avyck.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
rstrui.exe
Debugger = "uyiyk.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\
Microsoft\Windows NT\SystemRestore
DisableSR = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
rstrui.exe
Debugger = "rekiycpdqig.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
MRT.exe
Debugger = "wdecmqaaffq.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
Mrtstub.exe
Debugger = "trlweamybdk.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
RunOnce
Google Updater 2.09 = "%All Users Profile%\Google Updater 2.09\m5a73ksm7uc1.exe"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Ext
VersionCheckEnabled = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
JavaSoft\Java Update\Policy
EnableJavaUpdate = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Adobe\Adobe ARM\1.0\
ARM
iCheckReader = "0"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
WindowsUpdate
DisableWindowsUpdateAccess = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
Explorer
HideSCAHealth = "1"

It modifies the following registry entries:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\SSDPSRV
Start = "2"

(Note: The default value data of the said registry entry is 3.)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\wuauserv
Start = "4"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\wscsvc
Start = "4"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\BITS
Start = "4"

(Note: The default value data of the said registry entry is 3.)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\SharedAccess
Start = "4"

(Note: The default value data of the said registry entry is 2.)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\W32Time
Type = "16"

(Note: The default value data of the said registry entry is 20.)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\wuauserv
ImagePath = ""

(Note: The default value data of the said registry entry is {random values}.)

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
TaskbarNoNotification = "1"

It deletes the following registry keys:

HKEY_CURRENT_USER\Software\AppDataLow\
Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\
31b643bcee3b\7072187166b519f2

Dropping Routine

This Trojan drops the following files:

%All Users Profile%\Microsoft\Windows\DRM\v3ks.sec
%AppDataLocal%\GDIPFONTCACHEV1.DAT
%All Users Profile%\Microsoft\Windows\DRM\drmstore.hds
%All Users Profile%\Google Updater 2.09\nkaayjssy.txt
%User Temp%\close
%All Users Profile%\Google Updater 2.09\m5a73ksm7uc1.exe
%AppDataLocal%\Microsoft\Media Player\CurrentDatabase_372.wmdb
%User Temp%\(
%User Temp%\m5a73ksm7uc1_1.exe

(Note: %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). . %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local 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).)

Other Details

This Trojan connects to the following possibly malicious URL:

http://{BLOCKED}4.icu/forum5/logout.php
http://{BLOCKED}a.hu/logs/klsubtitulos.exe
http://{BLOCKED}4.icu/forum5/logout.php?pid=139
http://{BLOCKED}4.icu/forum5/logout.php?id=9243493
http://{BLOCKED}4.icu/forum5/logout.php?id=5547288
http://{BLOCKED}oft.com
http://{BLOCKED}3.icu

This report is generated via an automated analysis system.

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

Identify and terminate files detected as Trojan.Win32.NEUREVT.WLDD

[ Learn More ]

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 3

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 4

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_CURRENT_USER\Software\AppDataLow\Google Updater
- LastUpdate = "\x81\xf5l\x9d\xcb\x1f\x041\xa3\xd6\xdb}\xa5k\x94\xe7"

In HKEY_CURRENT_USER\Software\AppDataLow\Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\31b643bcee3b
- 72335710f377fc = "\x12\x00\x08\x00\x00\x01\x00\xe4\x07\x08\x00\x00\x01\x00\xe4\x07"

In HKEY_CURRENT_USER\Software\AppDataLow\Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\31b643bcee3b
- ccf4560c448c987299 = "\x00\x00\x00\x00"

In HKEY_CURRENT_USER\Software\AppDataLow\Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\31b643bcee3b
- 8a39a5518f345 = "\x00\x00\x00\x00"

In HKEY_CURRENT_USER\Software\AppDataLow\Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\31b643bcee3b
- 3ebd6c510ff4684aa9 = "\x00\x00\x00\x00"

In HKEY_CURRENT_USER\Software\AppDataLow\Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\31b643bcee3b
- 8507f0ede4f = "\x00\x00\x00\x00"

In HKEY_CURRENT_USER\Software\AppDataLow\Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\31b643bcee3b
- 51af665bebc38cca82 = "\x00\x00\x00\x00"

In HKEY_CURRENT_USER\Software\AppDataLow\Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\31b643bcee3b
- 5e28126e721 = "\x00\x00\x00\x00"

In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile
- EnableFirewall = "0"

In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\PublicProfile
- EnableFirewall = "0"

In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\MpsSvc
- Start = "4"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList\Nla\Cache\Intranet
- {89BCDCB3-5725-45A2-94AB-2D6B641209B0} = "\x00PV\xbcK\xa3"

In HKEY_CURRENT_USER\Software\AppDataLow\Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\31b643bcee3b
- 66a722cee7ba32009 = "\x01\x00\x00\x00"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbamgui.exe
- Debugger = "qcqj.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbam.exe
- Debugger = "bvez.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Mrtstub.exe
- Debugger = "vtqe.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MRT.exe
- Debugger = "okjm.exe"

In HKEY_CURRENT_USER\Software\AppDataLow\Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\31b643bcee3b
- f19a6da19beb27ffcce = "\x05\xee\x00\x00"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\winmgr108.exe
- Debugger = "avyck.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe
- Debugger = "uyiyk.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\SystemRestore
- DisableSR = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe
- Debugger = "rekiycpdqig.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MRT.exe
- Debugger = "wdecmqaaffq.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Mrtstub.exe
- Debugger = "trlweamybdk.exe"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce
- Google Updater 2.09 = "%All Users Profile%\Google Updater 2.09\m5a73ksm7uc1.exe"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Ext
- VersionCheckEnabled = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Update\Policy
- EnableJavaUpdate = "0"

In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Adobe\Adobe ARM\1.0\ARM
- iCheckReader = "0"

In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\WindowsUpdate
- DisableWindowsUpdateAccess = "1"

In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer
- HideSCAHealth = "1"

To delete the registry value this malware/grayware created:

Open Registry Editor.
» For Windows 7 and Windows Server 2008 (R2) users, click the Start button, type regedit in the Search input field then press Enter.
» For Windows 8, Windows 8.1, Windows 10, and Windows Server 2012 (R2) users, right-click on the lower-left corner of the screen, click Run, type regedit in the text box provided, and then press Enter.
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>AppDataLow>Google Updater
In the right panel, locate and delete the entry:
LastUpdate = "\x81\xf5l\x9d\xcb\x1f\x041\xa3\xd6\xdb}\xa5k\x94\xe7"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>AppDataLow>Software>{9DE97081-D703-182D-BFCA-C761B97788FB}>14E51F82>31b643bcee3b
In the right panel, locate and delete the entry:
72335710f377fc = "\x12\x00\x08\x00\x00\x01\x00\xe4\x07\x08\x00\x00\x01\x00\xe4\x07"
Again In the right panel, locate and delete the entry:
ccf4560c448c987299 = "\x00\x00\x00\x00"
Again In the right panel, locate and delete the entry:
8a39a5518f345 = "\x00\x00\x00\x00"
Again In the right panel, locate and delete the entry:
3ebd6c510ff4684aa9 = "\x00\x00\x00\x00"
Again In the right panel, locate and delete the entry:
8507f0ede4f = "\x00\x00\x00\x00"
Again In the right panel, locate and delete the entry:
51af665bebc38cca82 = "\x00\x00\x00\x00"
Again In the right panel, locate and delete the entry:
5e28126e721 = "\x00\x00\x00\x00"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>services>SharedAccess>Parameters>FirewallPolicy>StandardProfile
In the right panel, locate and delete the entry:
EnableFirewall = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>ControlSet001>services>SharedAccess>Parameters>FirewallPolicy>PublicProfile
In the right panel, locate and delete the entry:
EnableFirewall = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>services>MpsSvc
In the right panel, locate and delete the entry:
Start = "4"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>NetworkList>Nla>Cache>Intranet
In the right panel, locate and delete the entry:
{89BCDCB3-5725-45A2-94AB-2D6B641209B0} = "\x00PV\xbcK\xa3"
Again In the right panel, locate and delete the entry:
66a722cee7ba32009 = "\x01\x00\x00\x00"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>mbamgui.exe
In the right panel, locate and delete the entry:
Debugger = "qcqj.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>mbam.exe
In the right panel, locate and delete the entry:
Debugger = "bvez.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>Mrtstub.exe
In the right panel, locate and delete the entry:
Debugger = "vtqe.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>MRT.exe
In the right panel, locate and delete the entry:
Debugger = "okjm.exe"
Again In the right panel, locate and delete the entry:
f19a6da19beb27ffcce = "\x05\xee\x00\x00"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>winmgr108.exe
In the right panel, locate and delete the entry:
Debugger = "avyck.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows NT>CurrentVersion>Image File Execution Options>rstrui.exe
In the right panel, locate and delete the entry:
Debugger = "uyiyk.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Policies>Microsoft>Windows NT>SystemRestore
In the right panel, locate and delete the entry:
DisableSR = "0"
Again In the right panel, locate and delete the entry:
Debugger = "rekiycpdqig.exe"
Again In the right panel, locate and delete the entry:
Debugger = "wdecmqaaffq.exe"
Again In the right panel, locate and delete the entry:
Debugger = "trlweamybdk.exe"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>Microsoft>Windows>CurrentVersion>RunOnce
In the right panel, locate and delete the entry:
Google Updater 2.09 = "%All Users Profile%\Google Updater 2.09\m5a73ksm7uc1.exe"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Policies>Ext
In the right panel, locate and delete the entry:
VersionCheckEnabled = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>JavaSoft>Java Update>Policy
In the right panel, locate and delete the entry:
EnableJavaUpdate = "0"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Wow6432Node>Adobe>Adobe ARM>1.0>ARM
In the right panel, locate and delete the entry:
iCheckReader = "0"
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>Windows>CurrentVersion>Policies>WindowsUpdate
In the right panel, locate and delete the entry:
DisableWindowsUpdateAccess = "1"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SOFTWARE>Microsoft>Windows>CurrentVersion>Policies>Explorer
In the right panel, locate and delete the entry:
HideSCAHealth = "1"
Close Registry Editor.

Step 5

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\SYSTEM\CurrentControlSet\services\SSDPSRV
- From: Start = "2"
  To: Start = ""3""

In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\wuauserv
- From: Start = "4"
  To: Start = ""2""

In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\wscsvc
- From: Start = "4"
  To: Start = ""2""

In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\BITS
- From: Start = "4"
  To: Start = ""3""

In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\SharedAccess
- From: Start = "4"
  To: Start = ""2""

In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\W32Time
- From: Type = "16"
  To: Type = ""20""

In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\wuauserv
- From: ImagePath = ""
  To: ImagePath = ""{random values}""

To restore registry values this malware/grayware modified:

Open Registry Editor. To do this:
- On Windows 7 and Server 2008 (R2):
  Click the Start button, type REGEDIT in the Search input field then press Enter.
- On Windows 8, 8.1, 10, and Server 2012 (R2):
  Right-click on the lower left corner of the screen and click Run, type REGEDIT in the Run input field, and then press Enter.
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>services>SSDPSRV
In the right panel, locate the registry value:
Start = "2"
Right-click on the value name and choose Modify. Change the value data of this entry to:
Start = "3"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>services>wuauserv
In the right panel, locate the registry value:
Start = "4"
Right-click on the value name and choose Modify. Change the value data of this entry to:
Start = "2"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>services>wscsvc
In the right panel, locate the registry value:
Start = "4"
Right-click on the value name and choose Modify. Change the value data of this entry to:
Start = "2"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>services>BITS
In the right panel, locate the registry value:
Start = "4"
Right-click on the value name and choose Modify. Change the value data of this entry to:
Start = "3"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>services>SharedAccess
In the right panel, locate the registry value:
Start = "4"
Right-click on the value name and choose Modify. Change the value data of this entry to:
Start = "2"
In the left panel, double-click the following:
HKEY_LOCAL_MACHINE>SYSTEM>CurrentControlSet>services>W32Time
In the right panel, locate the registry value:
Type = "16"
Right-click on the value name and choose Modify. Change the value data of this entry to:
Type = "20"
Again In the right panel, locate the registry value:
ImagePath = ""
Right-click on the value name and choose Modify. Change the value data of this entry to:
ImagePath = "{random values}"
Close Registry Editor.

Step 6

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.

%All Users Profile%\Microsoft\Windows\DRM\v3ks.sec
%AppDataLocal%\GDIPFONTCACHEV1.DAT
%All Users Profile%\Microsoft\Windows\DRM\drmstore.hds
%All Users Profile%\Google Updater 2.09\nkaayjssy.txt
%User Temp%\close
%All Users Profile%\Google Updater 2.09\m5a73ksm7uc1.exe
%AppDataLocal%\Microsoft\Media Player\CurrentDatabase_372.wmdb
%User Temp%\(
%User Temp%\m5a73ksm7uc1_1.exe

Step 7

Search and delete this folder

[ Learn More ]

Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.

%All Users Profile%\Google Updater 2.09

Step 8

Scan your computer with your Trend Micro product to delete files detected as Trojan.Win32.NEUREVT.WLDD. 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 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.

%All Users Profile%\Google Updater 2.09\desktop.ini
%All Users Profile%\Google Updater 2.09\m5a73ksm7uc1.exe:Zone.Identifier
%AppDataLocal%\Microsoft\Internet Explorer\VersionManager\versionlist.xml

Step 10

Restore these deleted registry keys/values from backup

*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.

In HKEY_CURRENT_USER\Software\AppDataLow\Software\{9DE97081-D703-182D-BFCA-C761B97788FB}\14E51F82\31b643bcee3b
- 7072187166b519f2

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