PC keylogger?

The following happened to me yesterday, for which I have a question.

After I started my laptop, a couple of windows pop up with the message that a virus / keylogger was found and I should do a check right away. But first I should click on something and then a PC scan would start. Did nothing, it was only possible to close the windows after a few times on the crosses, they kept popping up. (That struck me as strange.) Then I checked the Defender to see if it was still active and yes it was active. Then made a scan with Avira, Avira took almost three quarters of an hour and found nothing. What else can you do?

Don't trust me to do online banking at the moment. What do you think.

Keylogger.

Sounds like you have a cracked program on the pc.

Have you ever pulled something down illegally?

Keyloggers or Keygen are actually programs that are intended to imitate a license key. These are also considered a virus. (if I'm not completely wrong now)

Otherwise try another virus program.

Without installation and real-time protection you can test ADW cleaner from Malewarebytes. It's completely free.

And I would be careful with online banking anyway.

Otherwise, look in your program folder from the control panel to see if you accidentally installed anything comical.

Which virus scanner do you use?
(Please specify the product and not just the manufacturer's name!)

I illegally pulled anything down. I download Excel sample files from an Excel forum and then copy them.

I'm using the Avira Free

Hmm well then that would be impossible. When you install programs, they sometimes want others to install them. If you do not go to decline then you have all the junk in the PC.

Ah ok.
Have a look at the last tests. The free version of Avira also belongs to the upper class of scanners. (That was different before!)
M. E. But not to the top field that is led by Kaspersky or Bitdefender.
It is a rock solid product and many times better than e.g. B. The Windows Defender.

Good - the question arises whether the virus warning message comes from Avira Free or another program.
If you do not know or understand this, it is advisable to get a second opinion.

Primarily I would always recommend "Disinfec't" from c't (heise-Verlag), since it starts from a Linux boot CD or stick and scans the system with 4 scanners from the outside.

Alternatively, the following products also work:
https://de.malwarebytes.com/...bytes.com/ (download, install, can be used free of charge for manual scans) Malwarebytes has proven to be a powerful tool in terms of "disinfection" (ie detection of infections and their cleaning up.) If not in preventing infections. But is very suitable for our purposes.

Alternatively and somewhat hidden on their homepage would be the free "https://support.norton.com/sp/de/de/threat-removal-solutions/current/solutions/kb20100824120155EN?inid=hho_supp_htm_trs-cur-retail-topfaq-01-kb20100824120155EN".

Both products can be used in parallel with the existing antivirus software.

Thanks for the reply and the tips. Will try it out. By the way, I just saw that a questioner, "rothma" had the exact same problem 103 days ago. The first window that was popped up was called the same. "System Defender Security Center".

But that's not Win10's own Defender, is it? But as I said, I will try out the tips from you.

The Windows Defender is in fact Microsoft's own product and is automatically delivered with Windows 10.

Depending on the source, you will also hear that the Defender would suffice. At av-test.org it is one of the top products.

But: I've been following the YouTube channel "https://www.thepcsecuritychannel.com/" for some time.
The operator "Leo" works for ESET himself.
He does nothing more than try to start tens of malicious software on a test system (most recently around 1,800) and records whether and how many are queried.

Previous conclusion: Kaspersky and Bitdefender (free versions!) Intercepted everything in such a way that the system did not suffer any lasting damage afterwards and it was still productive.
With Windows Defender - well… After about 600 samples, all personal files had been encrypted by a Kypto-Trojan and the system slowed down so much that there was no longer any question of usability.
Avira free also did well recently.

No, I don't think "" System Defender Security Center "" is Windows Defender just because "Defender" is in the name.
I rather suspect that this program itself is an https://en.wikipedia.org/...ed_program or malware.

And because I'm in the middle of writing:
A keylogger is normally used by professionals as hardware. For example, as an adapter between the USB port and USB keyboard on the back of the computer.
You rarely look there.
These things sometimes have their own Wi-Fi, with which the spy can also access the data outside of the apartment.

Large-scale spying is more likely to be done through social engineering in conjunction with phishing. This is much more effective than injecting a software keylogger.

Either you bring people with fake messages (Attention virus found! Click here to install the update.) To install malware yourself or phisht out specific bank details and TAN.

Yes, I had already thought so. Since I'm initially a little calmed that it actually. Can't be a keylogger. I immediately closed everything and did nothing of what was requested.