WORM_NUQEL.DU
Worm:Win32/Nuqel.AC (Microsoft)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Worm
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
This worm 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
351,232 bytes
EXE
Yes
26 Aug 2011
Arrival Details
This worm 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 worm drops the following files:
- %User Profile%\Application Data\Java\Desktop.ini
- %Windows%\ntbtlog.txt
(Note: %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.. %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)
It drops the following copies of itself into the affected system:
- %User Profile%\Application Data\Java\?shimgvw?.exe
- %User Profile%\Application Data\Java\?Jview?.exe
(Note: %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.)
It creates the following folders:
- %User Profile%\Application Data\Java
(Note: %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.)
Autostart Technique
This worm adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{username}? = "%User Profile%\Application Data\Java\?shimgvw?.exe"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
jre? = "%User Profile%\Application Data\Java\?Jview?.exe"
Other System Modifications
This worm adds the following registry entries:
HKEY_CLASSES_ROOT\exefile
NeverShowExt = ""
HKEY_CLASSES_ROOT\jpegfile
NeverShowExt = ""
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
System
EnableLUA = "0"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center
AntiVirusOverride = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center
AntiVirusDisableNotify = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center
FirewallDisableNotify = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center
FirewallOverride = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center
UpdatesDisableNotify = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center
UacDisableNotify = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center
FirstRunDisabled = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center\Svc
AntiVirusOverride = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center\Svc
AntiVirusDisableNotify = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center\Svc
FirewallDisableNotify = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center\Svc
FirewallOverride = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center\Svc
UpdatesDisableNotify = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center\Svc
UacDisableNotify = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Security Center\Svc
FirstRunDisabled = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\policies\
system
EnableLUA = "0"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
ansavgd
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
attrib.exe
Debugger = "rundll32.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
autorunme.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
blastclnn.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
blastclnnn.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
cscript.exe
Debugger = "rundll32.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
egui.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
ekrn.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
ise32.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
MSASCui.exe
Debugger = "rundll32.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
Nbrowser.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
New Folder.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
Njeeves.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
nod32.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
nod32krn.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
nod32kui.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
npcsvc32.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
npc_login.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
npc_tray.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
npflgutl.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
npfports.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
npfrules.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
npfsvc32.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
npfuser.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
npfwiz.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
nprosec.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
nuaa.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
Nvcoa.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
nvcsched.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
nvoy.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
reg32.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
rtpsvc.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
scsaver.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
SSCVIHOST.exe
Debugger = "cmd.exe /c del /f /q"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\Image File Execution Options\
wscript.exe
Debugger = "rundll32.exe"
It modifies the following registry entries:
HKEY_CLASSES_ROOT\jpegfile\DefaultIcon
(default) = "%User Profile%\Application Data\Java\?shimgvw?.exe,0"
(Note: The default value data of the said registry entry is shimgvw.dll,3.)
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced
HideFileExt = "1"
(Note: The default value data of the said registry entry is 0.)
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced
SuperHidden = "0"
(Note: The default value data of the said registry entry is 1.)
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced
ShowSuperHidden = "0"
(Note: The default value data of the said registry entry is 1.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced\Folder\HideFileExt
UncheckedValue = "1"
(Note: The default value data of the said registry entry is 0.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Advanced\Folder\SuperHidden
UncheckedValue = "0"
(Note: The default value data of the said registry entry is 1.)
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\SystemRestore
DisableSR = "1"
(Note: The default value data of the said registry entry is 0.)
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
jpegfile\DefaultIcon
(default) = "%User Profile%\Application Data\Java\?shimgvw?.exe,0"
(Note: The default value data of the said registry entry is shimgvw.dll,3.)
SOLUTION
9.200
8.380.11
26 Aug 2011
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
Restart in Safe Mode
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_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- {username}? = "%User Profile%\Application Data\Java\?shimgvw?.exe"
- {username}? = "%User Profile%\Application Data\Java\?shimgvw?.exe"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- jre? = "%User Profile%\Application Data\Java\?Jview?.exe"
- jre? = "%User Profile%\Application Data\Java\?Jview?.exe"
- In HKEY_CLASSES_ROOT\exefile
- NeverShowExt = ""
- NeverShowExt = ""
- In HKEY_CLASSES_ROOT\jpegfile
- NeverShowExt = ""
- NeverShowExt = ""
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System
- EnableLUA = "0"
- EnableLUA = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
- AntiVirusOverride = "1"
- AntiVirusOverride = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
- AntiVirusDisableNotify = "1"
- AntiVirusDisableNotify = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
- FirewallDisableNotify = "1"
- FirewallDisableNotify = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
- FirewallOverride = "1"
- FirewallOverride = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
- UpdatesDisableNotify = "1"
- UpdatesDisableNotify = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
- UacDisableNotify = "1"
- UacDisableNotify = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center
- FirstRunDisabled = "1"
- FirstRunDisabled = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\Svc
- AntiVirusOverride = "1"
- AntiVirusOverride = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\Svc
- AntiVirusDisableNotify = "1"
- AntiVirusDisableNotify = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\Svc
- FirewallDisableNotify = "1"
- FirewallDisableNotify = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\Svc
- FirewallOverride = "1"
- FirewallOverride = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\Svc
- UpdatesDisableNotify = "1"
- UpdatesDisableNotify = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\Svc
- UacDisableNotify = "1"
- UacDisableNotify = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\Svc
- FirstRunDisabled = "1"
- FirstRunDisabled = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system
- EnableLUA = "0"
- EnableLUA = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ansavgd
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\attrib.exe
- Debugger = "rundll32.exe"
- Debugger = "rundll32.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\autorunme.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\blastclnn.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\blastclnnn.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cscript.exe
- Debugger = "rundll32.exe"
- Debugger = "rundll32.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\egui.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ekrn.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ise32.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MSASCui.exe
- Debugger = "rundll32.exe"
- Debugger = "rundll32.exe"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Nbrowser.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\New Folder.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Njeeves.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod32.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod32krn.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod32kui.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\npcsvc32.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\npc_login.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\npc_tray.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\npflgutl.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\npfports.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\npfrules.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\npfsvc32.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\npfuser.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\npfwiz.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nprosec.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nuaa.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Nvcoa.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nvcsched.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nvoy.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\reg32.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rtpsvc.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\scsaver.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SSCVIHOST.exe
- Debugger = "cmd.exe /c del /f /q"
- Debugger = "cmd.exe /c del /f /q"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\wscript.exe
- Debugger = "rundll32.exe"
- Debugger = "rundll32.exe"
Step 4
Restore this modified 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_CLASSES_ROOT\jpegfile\DefaultIcon
- From: (default) = "%User Profile%\Application Data\Java\?shimgvw?.exe,0"
To: (default) = "shimgvw.dll,3"
- From: (default) = "%User Profile%\Application Data\Java\?shimgvw?.exe,0"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
- From: HideFileExt = 1
To: HideFileExt = "0"
- From: HideFileExt = 1
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
- From: SuperHidden = "0"
To: SuperHidden = "1"
- From: SuperHidden = "0"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
- From: ShowSuperHidden = "0"
To: ShowSuperHidden = "1"
- From: ShowSuperHidden = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\HideFileExt
- From: UncheckedValue = "1"
To: UncheckedValue = "0"
- From: UncheckedValue = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\SuperHidden
- From: UncheckedValue = "0"
To: UncheckedValue = "1"
- From: UncheckedValue = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore
- From: DisableSR = "1"
To: DisableSR = "0"
- From: DisableSR = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\jpegfile\DefaultIcon
- From: (default) = "%User Profile%\Application Data\Java\?shimgvw?.exe,0"
To: (default) = "shimgvw.dll,3"
- From: (default) = "%User Profile%\Application Data\Java\?shimgvw?.exe,0"
Step 5
Search and delete this folder
- %User Profile%\Application Data\Java
Step 6
Search and delete these files
- %User Profile%\Application Data\Java\Desktop.ini
- %Windows%\ntbtlog.txt
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as WORM_NUQEL.DU. 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 this Knowledge Base page for more information.
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