Social networks
Awards
MVP:
2013 – 2016
WIMVP:
2017 – 2020
Category Archives: Security
Russian Sandworm Group Responsible for Cyclops Blink Botnet
[German]For several days now, a new malware has been infecting network devices around the world and incorporating affected machines Cyclops Blink botnet. This botnet can steal confidential data and attack other networks. Meanwhile, this malware or botnet is attributed to … Continue reading
Cyclops blink malware targets WatchGuard network firewalls
[German]Administrators of Watchguard network firewalls (WatchGuard Fireware for Firebox) need to pay attention. A Cyclops Blink malware is capable of abusing a legitimate vendor firmware update mechanism in infected devices in such a way that it is persistent, meaning it … Continue reading
Massive cyberattack on websites in Ukraine & Wiper malware (Feb. 23, 2022)
[German]The armed conflict with which Russia is threatening Ukraine is also spreading to the Internet. After websites in Ukraine were already attacked in mid-February 2022, a massive attack on various government sites in Ukraine, banks, etc. has been taking place … Continue reading
Android Trojan Xenomorph targets 56 European banks
[German]Security researchers from threadfabric.com have come across a new Android banking Trojan in February 2022, which is distributed via the Google Play Store and targets the customers of 56 European banks. An infected cleaner app was downloaded more than 50,000 … Continue reading
Linux vulnerabilities patched fastest (Feb. 2022)
[German]There is always a discussion about how quickly or how slowly vulnerabilities are patched by developers. Google's Project Zero has therefore taken a look at how quickly security vulnerabilities are closed in Linux or in products from Microsoft (Windows) and … Continue reading
Why ISL Online: Critical factors when choosing a remote desktop solution
[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...
axis.com (IP security camera vendor) is down (Feb. 21, 2022)
[German]Brief note for people dealing with security cameras from vendor Axis. A German blog reader informed me, that the website of this vendor is currently down. There seems to be massive technical issues causing a major outage. Whether it is … Continue reading
Vulnerability discovered in various zebNet products (Feb. 2022)
[German]The vendor zebNet has discovered a critical vulnerability in various products that allow a man-in-the-middle attack (MITM) in the update process of the affected application. The night I was then contacted by the manufacturer by mail and asked to publish … Continue reading
Security Updates for Cisco Email Security Appliances (Feb. 2022)
[German]Cisco has released security updates this week to close a highly classified vulnerability (CVE-2022-20653) in its email security appliances. Attackers were able to crash the e-mail security appliances via prepared e-mails and thus virtually launch a DoS attack. Affects Cisco … Continue reading
Ransomware hits Europe's industrial control systems and operating technology as frequently as IT systems
[German]Interesting findings from a survey of 1,100 security specialists as part of a study with regard to the security of industrial systems and critical infrastructure in Europe. The message of the study was that industrial control systems and operating technology … Continue reading
Microsoft Security Update Revisions (Feb. 17, 2022)
Microsoft has sent me a mail with various revisions of security updates as of February 17, 2022. These revisions are only informal, as the classification of certain vulnerabilities has changed. Here is the uncommented overview, which relates to Microsoft Office … Continue reading