Sir Apfelot Blog

18 July 2022

What is spyware?

Spyware is the term used to describe the type of malware on the Mac, PC or mobile device that can silently collect data, copy content and/or track online activity. The different types of this spy software together can monitor everything […]
14 July 2022

What is a Trojan?

In addition to the computer virus, you have certainly come across the term “Trojan” to describe malware on Macs and PCs. The word Trojan, which is short for Trojan horse, describes a […]
26 April 2022
Scam attempt with fake Apple Support site - Phishing or other scam disguised as Apple Support

Sometimes strange things happen. For example, I just wanted to go to, type in the domain in the browser and land on a page that tells me that I have a "popup adware virus" on my [...]
22 October 2020

Apple is again letting Mac malware in the App Store

In just six weeks, Apple approved Mac malware for the App Store for the second time. Admittedly, the malware of the OSX / MacOffers family (or MaxOfferDeal) was once again well hidden. But the new case shows [...]
20 July 2020

Warning: The Trojan "Emotet" is being sent again via spam mail

After the trojan "Emotet", which attacks both Windows PCs and Apple Macs, had become quiet, it now seems to be back in circulation. As various sources report, e-mails to which the [...]
12 February 2019

Why you shouldn't install antivirus software on your Mac

Antivirus software on the Mac or anti-malware apps on macOS are not required. In this post I would like to show you why this is the case and how I have been using Apple computers for over 20 years without me [...]
15 January 2019

Emotet - BSI warning against malware (also for Mac computers)

The Federal Office for Information Security (BSI) is currently providing information on the subject of "Emotet" on its citizens' website. This is malware that gets onto the computer via email. The procedure is particularly tricky: The [...]
19 December 2017

Loapi: Kaspersky discovered modular Trojan for smartphones

The Russian developer of anti-virus programs and digital security solutions, Kaspersky, has published a press release on an aggressive modular Android Trojan called "Loapi" that attacks smartphones extensively. Loapi uses the smartphone that he infects, among other things [...]
13 October 2017
The Mac Trojan "Retefe" is hiding, among other things, in an alleged update under OS X or macOS. The malware targets online banking data that is used on the Apple computer. Image: GovCERT

Retefe trojan: targeting German Mac users

The banking Trojan Retefe is now also targeting German Mac users. After the malicious program, which is supposed to tap sensitive data for cyber criminals, was distributed mainly in Austria, Switzerland, Sweden, Japan and partly in Great Britain, [...]
7 March 2016
Ransomware OSX.KeRanger.A: Transmission took action.

KeyRanger: "Ransomware" Trojan attacks OS X users

So far, Apple users have always been able to lean back and take a deep breath after reading reports about Trojans on Windows computers. Now, however, a new "ransomware" malware strikes, targeting OS X users [...]