Keyloggers: Some Ways of Protection for Everyone

Keyloggers are one of the most popular computer security threats. It's hard to detect, and the damage they can do does not stop on your computer, for example if your malware stole your credit card details.Keyloggers

Keylogging malware is widely circulated, and is usually contained in any malware variants. Below we will try to see how you can protect yourself from a keylogger. Let's mention once again that there are no perfect defenses, but the steps below will improve the security of your system.

What are Keyloggers?

Before we see how we can stop a keylogger, we should see what it is, how it works and where it comes from.

The term keylogger refers to a malicious program that records your keystrokes. Every word, every character and every that you press on your keyboard are recorded.

At some point in the code, the keylogger sends the log to the attacker. The file may contain your bank connections, credit and debit card details, passwords, and anything else that you have entered on your computer.

Almost all keyloggers come bundled with other malware. In the past keylogger malware remained silent for as long as possible. This means that malicious files don't cause, they just collect as long as you continue to use your system.

However, this is not always the case. For example, the recently discovered MysteryBot targets Android devices with Trojan banking, keylogger and ransomware. Generally, a keylogger will appear as part of an exploit kit that gives the intruder control over various functions of your system.

But there is another form of keylogger. Card readers and skimmers who click on the PoS to copy your PIN. Along with all of the above, you should be careful about what USB you place on your computer and by whom.

But let's see how you can protect yourself:

Use Firewall

In most cases, the keylogger must send the data stored to the attacker via the Internet. But your Internet passes through a firewall (Firewall, for example, Windows Firewall). So there is a chance you can understand that something is wrong.
For more protection, you could also use a third-party firewall, although it is not recommended for your system's performance. Windows Firewall is a great tool, as long as you learn how to set it up.

Install Password Manager

Too many security researchers recommend changing your passwords frequently. In practice it is very difficult, because we will have to memorize dozens of passwords depending on the online ones that we use. Keyloggers of course do their job: they copy and store every information you type. But what if you don't type the passwords?

Most Password Managers use the auto-fill feature, The password is added to the password box without typing.

Unfortunately, only one password manager is not enough for your protection:

  • Some password managers do not copy-paste your passwords. They use an auto-type function to enter the password. So the keylogger will copy every data.
  • A well-designed keylogger periodically pulls screenshots, but also saves the content stored in the clipboard.

A good solution for all the above is the KeePass που χρησιμοποιεί τη λειτουργία TCATO (από το Two-Channel Auto-Type Obfuscation). Το TCATO χωρίζει τον κωδικό πρόσβασης σε δύο τμήματα, τα στέλνει στο (clipboard) και στη συνέχεια τα συγχωνεύει στο πλαίσιο του κωδικού πρόσβασης. Ωστόσο, να αναφέρουμε ότι τίποτα δεν είναι τόσο ασφαλές όσο ισχυρίζεται, καθώς είναι θεωρητικά δυνατό να γράψετε μια εξειδικευμένη εφαρμογή παρακολούθησης που ειδικεύεται στην καταγραφή του συγκεκριμένου τύπου αποθήκευσης.

Update your system

Your system updates are necessary. Keyloggers and other malicious programs are looking for exploits on systems that have not been updated. However, security researchers are constantly finding new exploits that can be instantly updated. But it may not.

So as we mentioned from the beginning of the post nothing can be 100% safe. Frequent updates, however, significantly reduce the risk.

Search for additional security tools

The default security options for Windows 10 are impressive, but there are always specialized tools that add extra security.
For example Ghostpress, is a free anti-keylogger with a very small footprint in performance.

Change your codes

If you see that something is wrong, use a different computer and change all of your passwords.

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Written by giorgos

George still wonders what he's doing here ...

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