Vidar and GandCrab Combine for a Double Attack

Ophtek, Security, Security Threats, vidar, , , , ,
05
Feb 2019

One set of malware is bad enough for most organizations to deal with, but what should they do when they’re hit with two sets at once?

Hackers are constantly trying to breach the defenses of PC users, but it’s not easy for them to succeed. Defenses are constantly improving and PC users are becoming more technically minded when it comes to hacking. Attacks, therefore, need to be cleverer and more aggressive for hackers to succeed. And one of the newest threats to PC defenses is a combined attack which teams up multiple forms of malware to pack a devastating punch.

In particular, reports are coming in that hackers are combining the data miner Vidar alongside the GandCrab ransomware to maximize their chances of success. And it’s proving to bear fruit for the hackers, so it’s crucial that you understand the risk.

The Double Whammy of Vidar and GandCrab

The combined attack of Vidar and GandCrab was identified by Malwarebytes Labs who observed that the hack first installs Vidar and then proceeds to strengthen the attack with GandCrab. Using malicious advertising software, the hackers expose users to an exploit kit (usually Fallout) which targets vulnerabilities in specific apps. Once this exploit kit has been executed, Vidar is installed on the infected PC and proceeds to mine user data such as communications, digital wallet info and login details.

This attack is bad enough, but the victim things are about to get worse as Vidar is capable of downloading additional malware. Using a command and control center to receive and transmit data, Vidar will, after a minute of its own installation, download and execute the GandCrab ransomware. It’s true that Ransomware has, to a degree, fallen out of favor with hackers over the last year, but it still has the potential to cause severe disruption for organizations. Encrypting files and then demanding a ransom will stifle the productivity of any organization effected, even if backup copies are available.

Protecting Your Organization from Vidar and GandCrab

It’s clear to see that the two headed attack of Vidar and GandCrab is particularly nasty and one to watch out for. In order to understand how to protect your organization from this threat, you need to understand how this attack is able to take place. As ever, that age old favorite of unpatched software is squarely to blame and, on this occasion, it’s Adobe’s Flash Player and Microsoft’s Internet Explorer.

Anti-malware software is now capable of detecting Vidar when it’s found within your PC, but the easiest option for any organization is to avoid allowing it access in the first place. One of the keenest security practices to adhere to is the installation of software patches as soon as they become available. Sadly, this task is often superseded by more immediate, pressing matters and this grants hackers more time to detect and exploit these vulnerabilities. However, with what is usually just a few clicks of a mouse, protection from potential security threats can be implemented by immediately installing patches.

For more ways to secure and optimize your business technology, contact your local IT professionals.

Read More

The 5 Biggest Cyber-Security Threats for 2019

Cyber Attack, Cyber Security, Ophtek, Security, Security Threats, , ,
29
Jan 2019

A new year is here and it’s rich with opportunity, but not just from a business point of view. For hackers, 2019 promises to be a busy and lucrative year.

From enhancements to existing methods of hacking through to completely new approaches, hackers will be doing their best to breach the defenses of organizations all over the world. With methods such as cryptomining rapidly gaining popularity – and generating nice incomes for the hackers – it’s easy to see why hacking is evolving so quickly. If a hacker can design software that gives them just a 1% advantage over their rivals then there’s a good chance they will reap the financial rewards on offer. And that’s why 2019 is going to see significant advances in hacking technology.

However, it’s possible to protect your organization by educating yourself on the five biggest cyber-security threats for 2019.

  1. A Rise in Internet of Things (IoT) Attacks

Despite the headlines regarding IoT device vulnerabilities, little has been done to rectify the flaws. Default passwords are still commonplace across devices and a demand for increased flexibility to work with various operating systems has made IoT devices easy targets. Securing your IoT devices, therefore, is crucial.

  1. An Increase in Biometric Hacking

Biometric passwords such as fingerprint or retina recognition are methods of security which, on the surface, appear to be difficult to beat due to the individual nature of fingerprints and retinas. However, the software behind this technology is much more vulnerable. Flaws in both the software and hardware are likely to be discovered and exploited during 2019, so relying purely on biometric passwords is not a recommended strategy.

  1. Chatbots will Start Phishing

Bots have been present online for decades, but an emerging trend has seen hackers designing chatbots that socially engineer computer users and extract their sensitive data. Computer users are becoming increasingly reliant on chatbots contained within websites for help, so it’s a clever move on the hackers’ part as it allows them to send malicious links direct to users in real time. Educating your staff on the dangers of such interactions will be essential during 2019.

  1. A Major Cloud Hack Will Occur

The amount of data stored within the cloud is immense and it’s surprising that one of the major cloud vendors hasn’t suffered a major hack already. And this is why it’s likely that attacks on cloud vendors will increase in 2019. The cloud, of course, remains a fantastic storage solution, but make sure you’re aware of your vendors security capabilities and retain physical backups of your data.

  1. Botnet Attacks Will Take Down the Internet

Botnets have disabled large sections of the internet before such as the 2016 attack which saw PayPal, Twitter and Amazon taken down. Naturally, this is terrible news for the organizations which have been hacked, but the knock on effect is a decrease in productivity for organizations that rely on these services e.g. accepting PayPal payments. Therefore, identifying the key online services your organization relies on and creating a contingency plan in the event of an attack is vital.

For more ways to secure and optimize your business technology, contact your local IT professionals.

Read More

Adobe Flash Remains a Security Liability

Adobe Flash, Security, Security Threats, Updates, , ,
15
Jan 2019

Adobe’s Flash Player has had a bad press in recent years due to the numerous security flaws in its design and these problems remain a major issue.

While we frequently worry about the dangers of malware and ransomware, we seem to have forgotten about the security vulnerabilities that are present in software we use every day. Flash has been exposed as having major security flaws in the last few years, so there’s been a tendency to migrate towards HTML5 code which is similar to Flash and much more secure. However, many people still use Flash online, so it’s likely that your organization will come into contact with it on a regular basis.

Understanding how to combat vulnerabilities in Flash is essential for your organization’s security, so let’s try and get a better understanding of Flash’s latest security crisis.

Flash Hits the Headlines Again

On the same day that Adobe released their latest patch for Flash, an independent security expert revealed that they had identified a glaring vulnerability in the software. This security flaw – given the unwieldy name of CVE-2018-15981 – is a curious software bug that has the potential to execute a malicious code through an instance of Flash hosted on a malicious website. Versions of Flash affected are all those up to version 31.0.0.148 and could affect the following browsers: Firefox, Chrome, Edge and Internet Explorer.

Combating Flash Vulnerabilities

The most recent version of Flash (31.0.0.153) is more than safe to use in terms of this recently discovered vulnerability, but the question remains as to whether more vulnerabilities are lurking within it. So, how do you combat the security flaws presented by Flash?

Many browsers, such as Chrome, Firefox and Edge, now insist that users have to manually activate Flash each and every time it’s encountered, but confidence tricks can easily be employed by hackers to disguise this. Flash, of course, is being discontinued at the end of 2020, so many people are simply disabling the software. With only a small minority of websites still using Flash, the loss of productivity from disabling it are considered minimal due to the alternative solutions on offer such as HTML5.

However, many organizations rely on Flash-based websites to complete essential tasks such as online customer portals etc. In these cases, the importance of monitoring crucial software updates and acting on these immediately should be a priority for all IT teams. Many businesses have been caught out on countless occasions due to a lack of care when it comes to installing patches and software updates. While this latest vulnerability does not appear to have been exploited by hackers, it could have easily led to severe data breaches and a drop in productivity for any organization affected.

Final Thoughts

Flash has been present within the landscape of the internet for over 20 years, but it almost feels as though Adobe have barely concentrated on it for the last few years. As a result, Flash has received nothing but negative feedback due to the security flaws present. Naturally, with just two years left in its lifespan, these issues will soon become irrelevant, but for now it’s vital that you regularly install updates or, where possible, disable it.

For more ways to secure and optimize your business technology, contact your local IT professionals.

Read More

Cybersecurity in 2018: A Review

cyber attacks, Cyber Security, Security, Security Threats, , , ,
08
Jan 2019

2018, just like 2017 before it, was a year packed full of cyber-security threats that our network defenses constantly tried to keep at bay.

However, the sheer number of attacks that were launched throughout 2018 meant that it was inevitable that breaches would take place. Perhaps your organization was one of the lucky ones, perhaps you were just too late to get on board with good security practices and found yourself hacked. Either way, it’s almost certain that you encountered at least one form of hacking during the year. And, hopefully, your organization managed to, at the very least, learn from the situation and improve your defenses.

With 2018 coming to a close, I decided it was a good time to take a look back over the major threats we experienced to see what we could learn and how we can prepare for 2019.

Ransomware

2017 is known by many security insiders as ‘The Year of Ransomware’ as it appeared to be in the headlines constantly. However, in 2018 there was a sharp drop in ransomware activity. By the end of Q2 2018, Malwarebytes reported that ransomware had fallen out of favor with hackers and was now only ranked as the sixth most popular form of malware. It’s suspected that this drop in activity can be put down to a rise in user awareness of ransomware scams and, perhaps most importantly, the fact that organizations rarely paid any ransom fees. The threat of ransomware, of course, still remains albeit much reduced and vigilance remains key to avoid disruption.

Cryptomining

One of the main reasons for ransomware’s fall in popularity during 2018 is down to the increase in popularity of cryptomining malware. Kaspersky revealed that while ransomware infections have dropped by 30%, cryptomining infections rose by 44.5% over the same 12 month period. And this change in fortunes shouldn’t come as a big surprise. All ransomware guarantees is that a ransom demand will be issued, no incoming funds are guaranteed as organizations often refuse to pay due to having backups. With cryptomining, however, once the infection is in place, the hackers can begin to reap small financial benefits fairly soon.

Phishing Emails

Despite the crude appearance and execution of phishing emails, they remain one of the most deceptive threats out there to organizations. Capable of extracting highly sensitive data, phishing emails have continued to enjoy popularity with scammers and hackers. Data from Kaspersky demonstrates that the proportion of spam in email traffic reached 53.49% in September 2018 – up from 47.7% in April 2018. And, through Kaspersky’s defenses alone, just over 137 million attempts to direct users to scam websites were carried out through phishing methods.

Preparing for 2019

There’s never time to rest on your laurels in cyber-security and the data above clearly underlines this fact. While the recent horror stories of ransomware may, to a degree, be muted, this method of hacking has very quickly been replaced with the more discreet techniques of cryptomining. And this is all without mentioning the gargantuan risk posed from phishing emails which remain as popular as ever. Going into 2019, it’s crucial that your organization is aware of the signs, symptoms and ramifications of all the major hacking techniques they may encounter while at work. Only then will you stand your best chance of being protected.

For more ways to secure and optimize your business technology, contact your local IT professionals.

Read More

Ohio Hospital Disrupted by Ransomware Attack

Ransomware, Security, Security Threats, Training, , ,
25
Dec 2018

Hospitals deliver a crucial service where productivity is key and any downtime can be disastrous. So, what happens when they’re struck by ransomware?

Healthcare providers are no strangers to ransomware as last year’s WannaCry attack demonstrated, so it would be safe to assume that hospitals are more vigilant than ever. And they are, but human error will always remain a factor and accidents can happen. A case in point is the East Ohio Regional Hospital (EORH) and the associated Ohio Valley Medical Center (OVMC) who have both suffered ransomware disasters in recent weeks.

While your organization may not be based in the healthcare section, hackers tend not to discriminate against their victims too closely and you could easily be next. Therefore, we’re going to take a look at what happened with EORH and the lessons that can be learned.

Emergency Room Chaos

The exact details behind the EORH ransomware attack have not been revealed as of yet, but a hospital spokesman has confirmed that their first line of security was considered redundant. This could indicate unpatched software or even poor staff training as the root cause of the attack, but this is purely speculation. Thankfully, the second line of defense employed by the hospital managed to stop the attack in its tracks and no data was breached, so there was no need to pay any ransom.

However, the impact of this ransomware attack led to a massive drop in productivity for the EORH. Computer networks had to be put into an immediate state of shutdown in order to protect any vulnerable data and, in many cases, staff had to move to charting patient data on paper. With split seconds being of significant importance in healthcare, this attack represented a major bump in the road for the EORH. Neither the EORH or OVMC were able to accept ER patients from emergency responders and these patients had to be redirected to other hospitals.

Combating Ransomware

The EORH were exceptionally lucky that their data remained safe and secure following the ransomware attack, but the downtime they experienced was a major disaster. And this is why all organizations need to be vigilant against such attacks. Downtime is never an option for an organization that wants to serve its clients, so make sure you follow these best practices:

  • Complete Regular Backups – No business can claim to be 100% immune from ransomware, but all businesses can regularly backup their data. And, if data is encrypted by ransomware, you then have the option to implement this backup and restore operations.
  • Multi-layered Security is Vital – As the EORH found, multiple layers of security prevented their ransomware burrowing too deep within their network and patient data was safely protected.
  • Educate Your Staff – The importance of educating your staff on the dangers of ransomware can never be underestimated. Humans are prone to error and, as one of your first lines of defense, they need to be educated on the threats they may encounter.
  • Limit Network Privileges – A simple method for limiting the spread of ransomware throughout your network is by limiting network privileges and access purely to those who need it. With every user having deep access into your network, there’s an increased risk of one data breach infecting the entire network.

For more ways to secure and optimize your business technology, contact your local IT professionals.

Read More
1 … 20 21 22 23 24 … 48