Virus.Win32.NAPWHICH.B.orig
Worm:Win32/AutoRun.XXY!bit (Microsoft); GenericRXCB-VC!336D382B0759 (McAfee); Backdoor.Win32.DarkKomet.hqxy (Kaspersky); Troj/DocDl-JJH (Sophos); Worm.Win32.AutoRun (Sunbelt)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: File infector
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This File infector 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 File infector 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 File infector adds the following processes:
- "%All Users Profile%\Synaptics\Synaptics.exe" InjUpdate
- %All Users Profile%\Synaptics\Synaptics.exe InjUpdate
(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). )
It creates the following folders:
- %Application Data%\WinSl
- %All Users Profile%\Synaptics
- %All Users Profile%\Synaptics\WS
(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).. %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 File infector adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Run
Synaptics Pointing Device Driver = "%All Users Profile%\Synaptics\Synaptics.exe"
Dropping Routine
This File infector drops the following files:
- %User Temp%\YZlt3xin.ico
- %User Temp%\HKrLZQEu.ico
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203\flashplayer18_0r0_203_win.exe
- %User Temp%\KzdosPDP.exe
- %User Temp%\TR9ieBlA.ico
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203\flashplayer18_0r0_200_winpep.exe
- %User Temp%\YZlt3xin.exe
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203_debug\flashplayer18_0r0_203_win_sa_debug.exe
- %User Temp%\9nYTu1vc.ico
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203_debug\flashplayer18_0r0_203_winax_debug.exe
- %User Temp%\IPCkCOLa.exe
- %Application Data%\WinSl\L9\1\2019
- %User Temp%\i7P5prFP.ico
- %User Temp%\IPCkCOLa.ico
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203\flashplayer18_0r0_203_winax.exe
- %User Temp%\9nYTu1vc.exe
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203_debug\flashplayer18_0r0_203_win_debug.exe
- %User Profile%\Documents\uninstall_flash_player.exe
- %User Temp%\o3CHjlHy.exe
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203_debug\flashplayer118_0r0_200_winpep_debug.exe
- %User Temp%\TR9ieBlA.exe
- %User Temp%\zQV4VAMl.exe
- %User Temp%\i7P5prFP.exe
- %User Temp%\o3CHjlHy.ico
- %User Temp%\m2wEWeG.ini
- %User Temp%\zQV4VAMl.ico
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203\uninstall_flashplayer18_0r0_203_win.exe
- %User Temp%\KzdosPDP.ico
- %User Temp%\HKrLZQEu.exe
- %All Users Profile%\Synaptics\Synaptics.exe
(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).. %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).. %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).. %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 Details
This File infector connects to the following possibly malicious URL:
- http://freedns.{BLOCKED}d.org/api/?{random characters}
- http://xred.{BLOCKED}o.com
- http://docs.{BLOCKED}e.com
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
Identify and terminate files detected as Virus.Win32.NAPWHICH.B.orig
- 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
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\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run
- Synaptics Pointing Device Driver = "%All Users Profile%\Synaptics\Synaptics.exe"
Step 4
Search and delete these components
- %User Temp%\YZlt3xin.ico
- %User Temp%\HKrLZQEu.ico
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203\flashplayer18_0r0_203_win.exe
- %User Temp%\KzdosPDP.exe
- %User Temp%\TR9ieBlA.ico
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203\flashplayer18_0r0_200_winpep.exe
- %User Temp%\YZlt3xin.exe
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203_debug\flashplayer18_0r0_203_win_sa_debug.exe
- %User Temp%\9nYTu1vc.ico
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203_debug\flashplayer18_0r0_203_winax_debug.exe
- %User Temp%\IPCkCOLa.exe
- %Application Data%\WinSl\L9\1\2019
- %User Temp%\i7P5prFP.ico
- %User Temp%\IPCkCOLa.ico
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203\flashplayer18_0r0_203_winax.exe
- %User Temp%\9nYTu1vc.exe
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203_debug\flashplayer18_0r0_203_win_debug.exe
- %User Profile%\Documents\uninstall_flash_player.exe
- %User Temp%\o3CHjlHy.exe
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203_debug\flashplayer118_0r0_200_winpep_debug.exe
- %User Temp%\TR9ieBlA.exe
- %User Temp%\zQV4VAMl.exe
- %User Temp%\i7P5prFP.exe
- %User Temp%\o3CHjlHy.ico
- %User Temp%\m2wEWeG.ini
- %User Temp%\zQV4VAMl.ico
- %User Profile%\Documents\fp_18.0.0.203_archive\18_0_r0_203\uninstall_flashplayer18_0r0_203_win.exe
- %User Temp%\KzdosPDP.ico
- %User Temp%\HKrLZQEu.exe
- %All Users Profile%\Synaptics\Synaptics.exe
Step 5
Search and delete these folders
- %Application Data%\WinSl
- %All Users Profile%\Synaptics
- %All Users Profile%\Synaptics\WS
Step 6
Scan your computer with your Trend Micro product to clean files detected as Virus.Win32.NAPWHICH.B.orig. 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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