Fake Legal Complaints Packed with Malware

DDoS Attack, Legal Complaints, malware, Ophtek, Security, , , ,
07
Sep 2021

The threat of legal proceedings always produces a sense of instant anxiety. But this is soon multiplied when it turns out to be a malware attack.

A recent threat to your IT security has been launched by cybercriminals intent on playing on your anxieties. Using a combination of legal threats and malicious links, the hackers aim is to get the BazaLoader malware downloaded to your IT network. The hacker’s strategy, as we’ll see, is one that has been encountered before and demonstrates the everchanging approaches employed by hackers. But what exactly is this new threat? And, more importantly, how do you protect yourself from it?

The Threat of Legal Action

With a generous helping of audacity, this latest attack is launched by the hackers contacting organizations to inform them that their website is involved in a DDoS attack. Rather than being sent from one email address to another, however, the hackers send their communications via the contact forms on websites.

The messages inform the website owners that it appears their website has been hacked and that files on its server are now being used to direct DDoS attacks. The sender of the message, of course, claims that their website is the victim of this DDoS attack. A link is included in the communications which directs the recipients to a Google Drive URL where, it is claimed, instructions to rectify the DDoS attack are housed. But clicking on this link will only set up an automatic download of BazaLoader.

The BazaLoader malware is, as the name suggests, a ‘loader’ form of malware. It’s typically used to download and activate additional malware such as ransomware. This compromises your system even further and, in the case of ransomware, imposes financial demands on your organization. The entire attack is remarkably similar to recent messages sent regarding fake DMCA claims surrounding copyright infringement.

How to Protect Yourself

Naturally, with the information provided above, you should know to tread carefully around any such communications. But, as you can see, the hackers are likely to change their strategy in the future. Therefore, you need to remain on your guard and practice the following:

  • Educate Your Staff on Social Engineering: Attacks such as the BazaLoader one rely on social engineering. This has become a popular strategy for hackers and it’s important that your staff can identify the tell-tale signs. Make a point of regularly refreshing their knowledge to ensure they remain vigilant.

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

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The Dangerous Power of the Prometheus Malware

antivirus software, Cyber Security, email security, malware, Ophtek, Prometheus Malware, , , , ,
18
Aug 2021

Malware-as-a-service (MaaS) provides a powerful malware solution for hackers. And Prometheus is the perfect example of such an infrastructure.

There’s money in everything and hacking is no different. But rather than extorting funds through ransomware, hackers can also design MaaS to generate some quick cash. MaaS takes the pain out of designing your own malware by offering a ready-made solution. And all you need to do is a pay a fee to use it. Typically, MaaS will give the user access to software which can distribute malware through malicious campaigns; this is exactly what Prometheus does.

As Prometheus, and all forms of MaaS, is so powerful, it’s important that you understand what it is and how to tackle it.

How Does Prometheus Work?

Prometheus has been available to purchase for a year now, with a subscription costing $250 per month. It uses two main attack strategies:

  • Distributing MS Word and Excel documents which are infected with malware
  • Using malicious links to divert victims to phishing websites

Subscribers to the Prometheus MaaS are given a central control panel from where they can launch their campaigns. From here they are able to configure various parameters to tailor their attacks e.g. targeting specific email addresses with a malicious call-to-action. Prometheus can also be used to assess potential victims. Using infected websites, Prometheus can collect data on visitors – such as IP address and user details – to assess which method of attack is best to launch. It’s a sophisticated form of hacking and one that requires high levels of awareness to combat.

It’s estimated that over 3,000 email addresses have been targeted by Prometheus as of this writing. These targets have included individuals in Europe and a number of government agencies and businesses in the US. While 3,000 potential victims may sound relatively small, it’s clearly best for every one of them to avoid it. And it is possible.

How to Combat Prometheus

Prometheus uses traditional methods to infect PCs with its malicious payloads, so it’s easy to avoid becoming a victim. All you need to do is practice the following:

  • Check All Emails: Malicious emails are very good at hiding the fact that they are malicious. Therefore, it always pays to quickly verify every email. Is the email address correct or is it a strange variation e.g. security@micros0ft.com? Is there an unusual and urgent call-to-action in the email such as a “click here before you lose access to your account” link? Anything suspicious should be queried with your IT team immediately.
  • Verify Links: It’s very easy to insert a malicious link into an email or website, so these need to be verified before clicking. For example, a link could be displayed as www.bankofamerica.com but hovering your cursor over this link will reveal the genuine destination. And this could be redirecting you towards a malicious website, so always verify your links.

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

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Disk Wiping Malware Disguises itself as Ransomware

Apostle, Cyber Security, malware, Ophtek, Ransomware, Updates, , , ,
08
Jun 2021

Ransomware is a highly destructive form of malware, but it turns out that it can also provide the perfect cover for disk wiping malware.

The pitfalls of becoming a victim of ransomware are well documented. And, as such, the term ransomware is one that strikes fear into the heart of any PC user. But, at the very least, ransomware does give you an option of getting your files back. Naturally, you have to pay a ransom fee for the files to be decrypted, but you can get them back. However, a form of malware called Apostle has now been discovered which pretends to be ransomware when, in fact, it simply wipes your disk drive beyond retrieval.

Data is a crucial commodity in any organization, so it’s important you make it as secure as possible. And one of the perfect ways to do this is by understanding how Apostle works.

How Does Apostle Wipe Disks?

The Apostle malware is believed to originate from Iran and is related to a previous wiper malware called Deadwood. Apostle is not brand new as it has been in the digital wild for some time. But these initial versions of Apostle were flawed and failed to deliver their malicious payload. Since then, the designers of Apostle have tweaked its design to make it more effective. This contemporary version of Apostle presents itself as standard ransomware, but this is merely to throw the victims off guard; its true intent is to destroy data and cause disruption.

The hackers behind Apostle are particularly cunning and are also happy to take ransom payments while destroying the data in question. But this is not where the attack ends. There are signs that Apostle is being used in conjunction with a backdoor attack called IPSec Helper. This allows the hackers to download and execute additional malware and move, undetected, within infected networks. Again, the intention here is to cause disruption.

How Do You Stop Your Disk Being Wiped?

The focus of Apostle, so far, has been Israeli targets, but this does not mean it should be considered a low-level threat. The design of this disk wiper malware can easily be engineered into more virulent and dangerous forms. And this could easily strike at the heart of your business’ operations. Therefore, it’s crucial that you maintain the following practices:

  • Evaluate All Attachments Before Opening: It’s likely that you receive numerous email attachments through the day, but how often do you verify them before opening? Trusted email addresses can, very easily, be taken over or even replicated. And this provides the perfect route for infected files to be opened. So, if in doubt over whether an attachment is safe, always check with an IT professional before opening.
  • Keep Your Software Updated: Another sure-fire way for hackers to gain access to your network is through vulnerabilities caused by outdated software. The best way to counter this threat is by implementing software updates as soon as possible. This minimizes the presence of vulnerabilities and keeps hackers out.

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

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Hackers Use Microsoft Platform to Launch Malware Attacks

data harvest, Hackers, malware, MSBuild, Ophtek, redline stealer, , , ,
01
Jun 2021

Hackers are innovative and industrious individuals, a description which is best demonstrated by their recent leverage of MSBuild to deliver malware.

The Microsoft Build Engine (MSBuild) is an open-source platform which allows software developers to test and compile their source codes. Operational since 2003, the platform has proved to be highly popular with developers and, accordingly, supports a large number of users. And it’s this popularity which has made it so attractive to hackers. By targeting these source codes at a development stage, the hackers are able to piggyback their malicious software into genuine software.

While your organization may not be involved in software development, there’s always the risk that you could end up working with software which is pre-loaded with malware. Therefore, we’re going to take a look at this MSBuild hack.

How are Hackers Infecting MSBuild?

Project files housed within MSBuild can be integrated within executable files which allow the hackers to launch their malicious payloads. But, as ever, hackers have been keen to remain stealthy; the infected payload does not run as a file. Instead, the malicious code is loaded into the PCs memory and it is here that the attack is launched. So far, it has been established that at least three forms of malware have been injected into systems via this approach. Redline Stealer, Remcos and QuasarRAT are the most recognisable forms of malware and have the potential to cause great damage.

Redline Stealer is primarily used as a data harvester and, as such, is mostly employed to steal login credentials and sensitive data. Remote access and surveillance, meanwhile, is the heartbeat of Remcos and allows hackers to hijack PCs remotely. Finally, QuasarRAT is another remote access tool and one which grants hackers full control of infected PCs. Naturally, these three malware variants are the last things you want on your system. And, given that they run filelessly and in the memory of a PC, it’s a threat which is difficult to tackle.

Protecting Yourself Against Memory Based Malware

Malware which operates from within the memory of your PC is difficult to tackle, but not impossible. Start by making sure you carry out these best security practices:

  • Monitor Network Activity: Regardless of whether a malware attack is file-based or fileless, there will be noticeable changes in your network activity. Any unusual spikes in data transfer or transmissions to unusual destinations should be investigated immediately.

Unfortunately, not all antivirus software can detect fileless malware such as that involved with the MSBuild hack. Conventional, file-based malware leaves behind digital footprints which are easy to detect, but this is not the case with fileless variants. In order to fully protect yourself, check with vendors whether their software has the capability to combat fileless malware.

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

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