What is 0021.DLL, How to remove 0021.DLL

0021.DLL is a harmful program.

remove It is a component of malware or spyware, you should immediately remove it using an antivirus and antispyware program.
If that does not help, then ask us for help in the Spyware removal forum.

Name: 0021
Filename: 0021.DLL
Registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows | AppInit_DLLS
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows | CrntDLL

Command: C:\WINDOWS\system32\0021.DLL
Startup Type: AppInit_DLLs + CrntDLL
HijackThis Category: O20
HijackThis Line:

O20 – AppInit_DLLs: C:\WINDOWS\system32\0021.DLL

DDS Line:

AppInit_DLLs: C:\WINDOWS\system32\0021.DLL

Combofix/RSIT Line:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows]

Description: trojan also known as Trojan-Spy.Win32.Delf.hvj [Kaspersky Lab], BackDoor-BAC [McAfee], Troj/Bckdr-RAP [Sophos], Trojan:Win32/Witkinat.A [Microsoft]

How to remove: use HijackThis + Malwarebytes` Anti-malware + Kaspersky virus removal tool

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