Windows 10: Windows 11 Defender latest updates could not remove or quarantine Backdoor:MSIL/Crysan.ARWA!MTB

Discus and support Windows 11 Defender latest updates could not remove or quarantine Backdoor:MSIL/Crysan.ARWA!MTB in Windows 10 Software and Apps to solve the problem; I just updated my Defender anti-virus signatures. And it found a virus on an external drive. Windows 11 Defender latest updates could not remove or... Discussion in 'Windows 10 Software and Apps' started by Alan Kernc, Jul 2, 2025 at 3:47 AM.

  1. ALAN KERNC
    Alan Kernc Win User

    Windows 11 Defender latest updates could not remove or quarantine Backdoor:MSIL/Crysan.ARWA!MTB


    I just updated my Defender anti-virus signatures. And it found a virus on an external drive. Windows 11 Defender latest updates could not remove or quarantine Backdoor:MSIL/Crysan.ARWA!MTB/What can I do?

    :)
     
    Alan Kernc, Jul 2, 2025 at 3:47 AM
    #1
Thema:

Windows 11 Defender latest updates could not remove or quarantine Backdoor:MSIL/Crysan.ARWA!MTB

Loading...

  1. Windows 11 Defender latest updates could not remove or quarantine Backdoor:MSIL/Crysan.ARWA!MTB - Similar Threads - Defender latest updates

  2. Windows 11 Defender latest updates could not remove or quarantine Backdoor:MSIL/Crysan.ARWA!MTB

    in Windows 10 Gaming
    Windows 11 Defender latest updates could not remove or quarantine Backdoor:MSIL/Crysan.ARWA!MTB: I just updated my Defender anti-virus signatures. And it found a virus on an external drive. Windows 11 Defender latest updates could not remove or quarantine Backdoor:MSIL/Crysan.ARWA!MTB/What can I do?...

  3. Remove MSIL/MediaArena

    in Windows 10 Gaming
    Remove MSIL/MediaArena: HelloWindows Defender has notified 3 high threats requiring action, arriving all on the same day and time. On clicking 'remove' nothing appears to happen. I have done offline scans too including in safe mode and have also checked the...

  4. Remove MSIL/MediaArena

    in Windows 10 Software and Apps
    Remove MSIL/MediaArena: HelloWindows Defender has notified 3 high threats requiring action, arriving all on the same day and time. On clicking 'remove' nothing appears to happen. I have done offline scans too including in safe mode and have also checked the...

  5. Trojan: MSIL/AgentTesla.BFV!MTB

    in Windows 10 Gaming
    Trojan: MSIL/AgentTesla.BFV!MTB: How do I remove this virus Trojan: MSIL/AgentTesla.BFV!MTB completely from my laptop? https://answers.microsoft.com/en-us/windows/forum/all/trojan-msilagentteslabfvmtb/82109471-4400-4531-a4fe-60238fbcfa81

  6. Trojan: MSIL/AgentTesla.BFV!MTB

    in Windows 10 Software and Apps
    Trojan: MSIL/AgentTesla.BFV!MTB: How do I remove this virus Trojan: MSIL/AgentTesla.BFV!MTB completely from my laptop? https://answers.microsoft.com/en-us/windows/forum/all/trojan-msilagentteslabfvmtb/82109471-4400-4531-a4fe-60238fbcfa81

  7. Windows defender not quarantining or removing trojan,

    in AntiVirus, Firewalls and System Security
    Windows defender not quarantining or removing trojan,: Windows defender not quarantining or removing trojan it keeps saying to start action but after trying to quarantine or remove it still remains, I have scanned with Malwarebytes and trend house call neither of which found any trace of the trojan........

  8. Windows defender not quarantining or removing trojan,

    in Windows 10 Gaming
    Windows defender not quarantining or removing trojan,: Windows defender not quarantining or removing trojan it keeps saying to start action but after trying to quarantine or remove it still remains, I have scanned with Malwarebytes and trend house call neither of which found any trace of the trojan........

  9. Windows defender not quarantining or removing trojan,

    in Windows 10 Software and Apps
    Windows defender not quarantining or removing trojan,: Windows defender not quarantining or removing trojan it keeps saying to start action but after trying to quarantine or remove it still remains, I have scanned with Malwarebytes and trend house call neither of which found any trace of the trojan........

  10. Windows Defender Removed Trojan:PDF/Phish!MTB

    in AntiVirus, Firewalls and System Security
    Windows Defender Removed Trojan:PDF/Phish!MTB: Just ran full scan Windows Defender and above Trojan was removed from 2 pc's running Windows 10 Pro 64 bit Thanks [Original Title: Trojan:PDF/Phish!MTB]...