Unable to delete Trojan:Win32/Vigorf.A

Question

Unable to delete Trojan:Win32/Vigorf.A

Bartosz 25

I have noticed some stuttering and freezing on my laptop with windows 11 and so I scanned for viruses and got this information: User's image

I have been trying to remove this virus wit multiple programs (windows defender, KVRT, malware bytes, NPE) and nothing seems to work. Can anyone offer a solution or do I need to fully reset my windows to default settings

Bartosz 25 Reputation points

2026-03-21T22:04:36.6933333+00:00

This one security risk also appears at the same time

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Bartosz 25 Reputation points

2026-03-21T22:04:36.6933333+00:00

This one security risk also appears at the same time

Answer 1

MUSTAFA SALAH 1,630

Hello Bartosz,

Question for you: are you using Fan Control Apps or installed new drivers / overclock your PC?

From my personal perspective: I recommend the Clean Install as it's the safest one (Ofc you need time and backup).
note: TEMPh-ttnxkljbcsz.sys is just a temporary copy created by one of these apps when it starts up.

However if you want to dig deeper to remove it:

#Run_Offline_Scan

User's image

Continue:

Isolate the System from the Network
Run Offline Scan
OR Boot into SafeMode & Run Scan again > Remove manually the file from (C:\Windows\Temp)
Check recently apps and startup software (remove any suspicious software's or non-used ones)

[Proactive]

To prevent this in the future, go to Windows Security > Device Security > Core Isolation and turn on Memory Integrity. This will block vulnerable drivers from loading in the first place.

MUSTAFA SALAH 1,630 Reputation points

2026-03-22T02:45:04.0366667+00:00

Adding:

Please Check the Task Scheduler > Look for any (Active / Suspicious) > remove it
"i can that the trojan install itself again and again through out this"
"Note: disconnect the network until you clean the system"
"Update your OS > Update Software Drivers"
MUSTAFA SALAH 1,630 Reputation points

2026-03-22T02:45:50.2166667+00:00

Once finished, run a Full Scan with the internet still disconnected. If no threats are found, you can reconnect. If Vigorf.A appears again in PowerShell immediately after connecting to the web, your browser or a Chrome extension might be compromised.
Bartosz 25 Reputation points

2026-03-22T02:49:11.09+00:00

I have not installed any fan control software unless hp firmware updated it on its own. I have ended up reinstalling windows, but thank you for your answer
MUSTAFA SALAH 1,630 Reputation points

2026-03-22T14:25:41.4833333+00:00

Once your Windows Installed. I want you to maximize the security settings and optimize it for performance.

Wise Decision from you

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Unable to delete Trojan:Win32/Vigorf.A

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