Connect with us

Security

GandCrab ransomware operation says it’s shutting down

Published

on

The creators of the GandCrab ransomware announced yesterday they were shutting down their Ransomware-as-a-Service (RaaS) operation, ZDNet has learned.

The GandCrab RaaS is an online portal where crooks sign up and pay to get access to custom builds of the GandCrab ransomware, which they later distribute via email spam, exploit kits, or other means.

When an infected user pays a ransom demand, the original GandCrab author earns a small commission, while the rest of the money goes to the crook who distributed the ransomware.

Retirement plans

Yesterday night, a source in the malware community has told ZDNet that the GandCrab RaaS operator formally announced plans to shut down their service within a month.

The announcement was made in an official thread on a well-known hacking forum, where the GandCrab RaaS has advertised its service since January 2018, when it formally launched.

In the forum message, the GandCrab authors bragged about the ransomware having earned over $2 billion in ransom payments, with the operators making roughly $2.5 million per week and $150 million per year. It goes without saying that these numbers should be taken with a grain of salt.

“We successfully cashed this money and legalized it in various spheres of white business both in real life and on the Internet,” the GandCrab crew bragged.

“We are leaving for a well-deserved retirement,” they said. “We have proved that by doing evil deeds, retribution does not come.”

GandCrab forum ad

Our source tells ZDNet that this was the last step in a process that started earlier this week when the GandCrab crew announced RaaS customers via private emails about plans to shut down the service.

Renters of the GandCrab ransomware were told to wind down operations and cash out within the next month.

Plans to delete decryption keys

The forum thread also leaves an ominous message for GandCrab victims, as the GandCrab RaaS operators said they were planning to delete all decryption keys, making file recovery for infected victims impossible.

Some of the security researchers we approached have told ZDNet this could be a ploy to make victims panic and pay the ransom demand. However, they shifted their views when they learned that GandCrab RaaS customers were also told to wind down operations.

In the past, when ransomware operations have shut down, they usually tended to release all victim decryption keys for free so that users could recover their data. Something like this happened for victims of ransomware families such as TeslaCrypt, XData, Crysis, and FilesLocker.

Even the GandCrab crew showed some compassion in the past by releasing free decryption keys for all users infected in war-torn Syria.

GandCrab was on the decline

A chart shared with ZDNet by Michael Gillespie — the creator of ID-Ransomware, a service that lets ransomware victims identify the type of ransomware that has infected their systems — shows a steady decline in GandCrab activity this month.

GandCrab IDR stats

Image: Michael Gillespie

The chart shows that GandCrab was losing customers even before the shutdown announcement.

Over the past year, the GandCrab ransomware family has been one of the most active ransomware threats around. It was one of the few ransomware strains that were being mass-distributed via email spam and exploit kits, but also as part of targeted attacks against high-profile organizations (a tactic known as big-game hunting) at the same time.

The ransomware has seen frequent updates and is currently at version 5.2, at the time of today’s shutdown.

Cyber-security firm Bitdefender released GandCrab decryptors on three occasions over the past year. These are apps that allow victims to recover encrypted files without paying the ransom. The last one was released in February this year and could decrypt GandCrab versions up to version 5.1 (with the exemption of v2 and v3).

The GandCrab author also had a spat with South Korean security vendor AhnLab last summer after the security firm released a vaccine for the GandCrab ransomware. As retaliation, they included a zero-day for the AhnLab antivirus in the GandCrab code.

Recently, Sophos Labs has observed criminal groups scanning the internet for open MySQL databases running on Windows systems, which they tried to infect with GandCrab. Probably the most high-profile attack that GandCrab was behind is a series of infections at customers of remote IT support firms in the month of February.

If the GandCrab crew follows through on their plans and actually shuts down, their legacy remains as one of a ransomware strain that has dominated the ransomware landscape in the second half of 2018 and the first half of 2019, when it was, by far, the most active strain on the market.

Related malware and cybercrime coverage:



Source link

Continue Reading
Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Security

GigaOm Radar for DDoS Protection

Published

on

With ransomware getting all the news coverage when it comes to internet threats, it is easy to lose sight of distributed denial of service (DDoS) attacks even as these attacks become more frequent and aggressive. In fact, the two threats have recently been combined in a DDoS ransom attack, in which a company is hit with a DDoS and then a ransom demanded in exchange for not launching a larger DDoS. Clearly, a solid mechanism for thwarting such attacks is needed, and that is exactly what a good DDoS protection product will include. This will allow users, both staff and customers, to access their applications with no indication that a DDoS attack is underway. To achieve this, the DDoS protection product needs to know about your applications and, most importantly, have the capability to absorb the massive bandwidth generated by botnet attacks.

All the DDoS protection vendors we evaluated have a cloud-service element in their products. The scale-out nature of cloud platforms is the right response to the scale-out nature of DDoS attacks using botnets, thousands of compromised computers, and/or embedded devices. A DDoS protection network that is larger, faster, and more distributed will defend better against larger DDoS attacks.

Two public cloud platforms we review have their own DDoS protection, both providing it for applications running on their public cloud and offering only cloud-based protection. We also look at two content delivery networks (CDNs) that offer only cloud-based protection but also have a large network of locations for distributed protection. Many of the other vendors offer both on-premises and cloud-based services that are integrated to provide unified protection against the various attack vectors that target the network and application layers.

Some of the vendors have been protecting applications since the early days of the commercial internet. These vendors tend to have products with strong on-premises protection and integration with a web application firewall or application delivery capabilities. These companies may not have developed their cloud-based protections as fully as the born-in-the-cloud DDoS vendors.

In the end, you need a DDoS protection platform equal to the DDoS threat that faces your business, keeping in mind that such threats are on the rise.

How to Read this Report

This GigaOm report is one of a series of documents that helps IT organizations assess competing solutions in the context of well-defined features and criteria. For a fuller understanding consider reviewing the following reports:

Key Criteria report: A detailed market sector analysis that assesses the impact that key product features and criteria have on top-line solution characteristics—such as scalability, performance, and TCO—that drive purchase decisions.

GigaOm Radar report: A forward-looking analysis that plots the relative value and progression of vendor solutions along multiple axes based on strategy and execution. The Radar report includes a breakdown of each vendor’s offering in the sector.

Solution Profile: An in-depth vendor analysis that builds on the framework developed in the Key Criteria and Radar reports to assess a company’s engagement within a technology sector. This analysis includes forward-looking guidance around both strategy and product.

Continue Reading

Security

GigaOm Radar for Security Information and Event Management (SIEM) Solutions

Published

on

The security information and event management (SIEM) solution space is mature and competitive. Most vendors have had well over a decade to refine their products, and the differentiation among basic SIEM functions is fairly small.

In response, SIEM vendors are developing advanced platforms that ingest more data, provide greater context, and deploy machine learning and automation capabilities to augment security analysts’ efforts. These solutions deliver value by giving security analysts deeper and broader visibility into complex infrastructures, increasing efficiency and decreasing the time to detection and time to respond.

Vendors offer SIEM solutions in a variety of forms, such as on-premises appliances, software installed in the customers’ on-premises or cloud environments, and cloud hosted SIEM-as-a-Service. Many vendors have developed multi-tenant SIEM solutions for large enterprises or for managed security service providers. Customers often find SIEM solutions challenging to deploy, maintain, or even operate, leading to a growing demand for managed SIEM services, whether provided by the SIEM vendor or third-party partners.

SIEM solutions continue to vie for space with other security solutions, such as endpoint detection and response (EDR), security orchestration automation and response (SOAR), and security analytics solutions. All SIEM vendors support integrations with other security solutions. Many vendors also offer tightly integrated solution stacks, allowing customers to choose the solutions they need most, whether just a SIEM, a SIEM and a SOAR, or some other combination. Other vendors are incorporating limited EDR- or SOAR-like capabilities into their SIEM solutions for customers who want the extra features but are not ready to invest in multiple solutions.

With so many options, choosing a SIEM solution is challenging. You will have to consider several key factors, starting with your existing IT infrastructure. Is an on-premises SIEM the right choice for you, or do you want a cloud-based or hybrid solution? Which systems and devices will be sending data to your SIEM, and how much data will it need to collect, correlate, analyze, and store? You should also consider the relative importance of basic capabilities and advanced features, bearing in mind that the basic capabilities may be considerably easier to deploy, maintain, and operate. Will your IT and security teams be able to deploy, maintain, and operate the solution on their own, or should you look for managed services to handle those tasks?

This GigaOm Radar report details the key SIEM solutions on the market, identifies key criteria and evaluation metrics for selecting a SIEM, and identifies vendors and products that excel. It will give you an overview of the key SIEM offering and help decision-makers evaluate existing solutions and decide where to invest.

How to Read this Report

This GigaOm report is one of a series of documents that helps IT organizations assess competing solutions in the context of well-defined features and criteria. For a fuller understanding consider reviewing the following reports:

Key Criteria report: A detailed market sector analysis that assesses the impact that key product features and criteria have on top-line solution characteristics—such as scalability, performance, and TCO—that drive purchase decisions.

GigaOm Radar report: A forward-looking analysis that plots the relative value and progression of vendor solutions along multiple axes based on strategy and execution. The Radar report includes a breakdown of each vendor’s offering in the sector.

Solution Profile: An in-depth vendor analysis that builds on the framework developed in the Key Criteria and Radar reports to assess a company’s engagement within a technology sector. This analysis includes forward-looking guidance around both strategy and product.

Continue Reading

Security

Key Criteria for Evaluating a Distributed Denial of Service (DDoS) Solution

Published

on

Although ransomware is making all the headlines today, it’s not the only kind of attack that can intrude between you and your customers. Distributed denial of service (DDoS) attacks, in which a target website is overwhelmed with spurious traffic, have become increasingly common.

Websites and online applications have become critical to how businesses communicate with their customers and partners. If those websites and applications are not available, there is a dollars and cents cost for businesses, both directly in business that is lost and indirectly through loss of reputation. It doesn’t matter to the users of the website whether the attacker has a political point to make, wants to hurt their victim financially, or is motivated by ego—if the website is unavailable, users will not be happy. Recent DDoS attacks have utilized thousands of compromised computers and they can involve hundreds of gigabits per second of attack bandwidth. A DDoS protection platform must inspect all of the traffic destined for the protected site and discard or absorb all of the hostile traffic while allowing legitimate traffic to reach the site.

Often the attack simply aims vast amounts of network traffic at the operating system under the application. These “volumetric” attacks usually occur at network Layer 3 or 4 and originate from compromised computers called bots. Few companies have enough internet bandwidth to mitigate this much of an attack on-premises, so DDoS protection needs to be distributed to multiple data centers around the world to be effective against these massive attacks. The sheer scale of infrastructure required means that most DDoS platforms are multi-tenant cloud services.

Other attacks target the application itself, at Layer 7, with either a barrage of legitimate requests or with requests carefully crafted to exploit faults in the site. These Layer 7 attacks look superficially like real requests and require careful analysis to separate them from legitimate traffic.

Attackers do not stand still. As DDoS protection platforms learn to protect against one attack method, attackers will find a new method to take down a website. So DDoS protection vendors don’t stand still either. Using information gathered from observing all of their protected sites, vendors are able to develop new techniques to protect their clients.

How to Read this Report

This GigaOm report is one of a series of documents that helps IT organizations assess competing solutions in the context of well-defined features and criteria. For a fuller understanding consider reviewing the following reports:

Key Criteria report: A detailed market sector analysis that assesses the impact that key product features and criteria have on top-line solution characteristics—such as scalability, performance, and TCO—that drive purchase decisions.

GigaOm Radar report: A forward-looking analysis that plots the relative value and progression of vendor solutions along multiple axes based on strategy and execution. The Radar report includes a breakdown of each vendor’s offering in the sector.

Solution Profile: An in-depth vendor analysis that builds on the framework developed in the Key Criteria and Radar reports to assess a company’s engagement within a technology sector. This analysis includes forward-looking guidance around both strategy and product.

Continue Reading

Trending