Article | March 11, 2020
With the spread of the novel coronavirus (COVID-19), many organizations are requiring or permitting employees to work remotely. This post is intended to remind employers and employees that in the haste to implement widespread work-from-home strategies, data security concerns cannot be forgotten.Employers and employees alike should remain vigilant of increased cybersecurity threats, some of which specifically target remote access strategies. Unfortunately, as noted in a prior blog post, cybercriminals will not be curtailing their efforts to access valuable data during the outbreak, and in fact, will likely take advantage of some of the confusion and communication issues that might arise under the circumstances to perpetrate their schemes. Employees working from home may be accessing or transmitting company trade secrets as well as personal information of individuals. Inappropriate exposure of either type of data can lead to significant adverse consequences for a company.
Article | February 12, 2020
On December 16, 2019, the U.S. Coast Guard disclosed a security incident at a facility regulated by the Maritime Transportation Security Act (MTSA). Forensic analysis suggests that the incident might have begun when an employee clicked on a link embedded in a phishing email.This action enabled a threat actor to set Ryuk ransomware loose on the facility’s network. Ultimately, the infection spread to all IT network files, leading Ryuk to disrupt the corporate IT network and prevent critical process control monitoring systems from functioning properly. Phishing is one of the primary infection vectors for most ransomware families, but there’s an interesting twist with this particular family. As noted by Malwarebytes, a typical Ryuk attack begins when a user opens a weaponized Microsoft Office document attached to a phishing email. Opening the document causes a malicious macro to execute a PowerShell command that attempts to download the banking trojan Emotet. This has the ability to download additional malware onto an infected machine that retrieves and executes Trickbot.
Article | March 4, 2020
Cybersecurity professionals are always interested in understanding how evolving events shape the threat landscape. Events such as WannaCry and NotPetya may have temporarily crippled technology environments that were running with third-rate security*, but the repercussions from the coronavirus will hit every organization, no matter how resilient they thought they were. No single event to date has changed the tech threat landscape more than the consequences and impacts developing around the Coronavirus (aka SARS-CoV-2 and the disease CoViD-19). Then there are the business consequences, such as the sudden changes in consumer patterns and steep loss of income. The coronavirus is unmistakably a black swan event. It falls outside of the outliers. It creates a situation that many security professionals are familiar with: The Medusa Effect.
Article | November 25, 2020
I would like to share my experience with you and talk about viruses created for Mac devices and how to deal with them. You may say that there are no Mac viruses as Apple does not allow it. However, I may say that there are plenty of nasty malware types like adware that open new tabs in your browser, redirect you to irrelevant pages and show numerous popups.
Yes, these are not real viruses. Adware like Search Marquis cannot clone itself and infect other connected devices. It cannot encrypt your files or cause any other harm. Its activity is related only to web redirects and excessive advertising. At the same time, who knows which rogue websites adware may land you on next time. It may happen that you end up on a phishing website where cyber crooks harvest personal information that leads to identity theft.
I strongly recommend removing all adware that penetrated your device. But there is a problem here. If you want to get rid of Mac adware, you cannot quickly find a solution. If you go to google and search there how to get rid of Mac malware, you will see that all top results offer you to buy and install some shady software. In reality, these Mac antiviruses do nothing, as we know that the Apple ecosystem does not allow apps to access other apps' data. No antivirus can really scan and check your files.
How to remove Mac malware
If your system is infected with adware and you do not know how to get rid of it, you may try to call Apple and ask what to do. You can find their phone number here: support.apple.com/en-gb/HT201232#us-ca.
Another option is to try your luck on Apple communities. Thousands of tech enthusiasts help uses with their problems there. Here is a sample thread: discussions.apple.com/thread/8226644.
There are other options too. Apple operating systems are not very difficult to use, and any person can remove adware manually by going through step-by-step guides posted on numerous malware removal websites. Here is a guide by BitAdvisors.com on how to remove Search Marquis malware.
Most rogue software works by exploiting bugs and vulnerabilities in your computer's operating system. And macOS has its own bugs too. To fix these vulnerabilities, Apple periodically releases operating system updates. To date, macOS has not proved attractive enough for cybercriminals and evil developers to flood it with malware.
To stays away from any surprises, it is recommended to update your OS as well as all apps installed regularly.
You should never install apps from unofficial app stores not controlled by Apple.
One of the ways for adware to penetrate your Mac computer is through bundled installs. You download and install a very useful app that is often free, but in reality, you get several apps. People never read user agreements written in small print. There it can be noted that you agree to install additional tools and provide some rights to them. Whenever you install something, be careful and read user agreements, and do not miss additional unnecessary software.
Do not install any software without urgent necessity. Any additional software widens the attack surface.
To be able to do bad things, current Mac malware requires users to perform some actions – grant rights. So, be careful with allowing any app to access your data, change settings, etc.
One more wise move is to make backups. iCloud or ordinary flash drives will help you not lose your data in case of a system glitch or malware attack.
Final advice - do use VPNs. Your connection will be encrypted, and attackers will not be able to find where you are actually located or what data your traffic consists of.