Bitcoin mining pool bot net detection

A new cloud computing network based bitcoin mining pool bot net detection block chain technology. It’s a real sense of cloud computing. It adopts the most advanced cellular node detection and heuristic Manhattan algorithm to realize the discrete coupling of complex computing tasks, so as to solve the computationally difficult tasks of traditional cloud computing.

The construction cost of cloud computing network is greatly reduced, and the huge computation can be completed at lower cost. For example, it is used for mining HASH computation for Ethernet coins and bitcoins. The ether square agreement agreed that the first miner who completed the account on the public account will receive a reward of 1 bitcoins. Unit of time has enormous computing power is the key to mining.

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Block chain technology must calculate the last block to calculate the next block, so it is difficult to dismantle the computing task and do parallel. Ordinary users lack of technical support, so it is difficult to build complex Ethernet environment. Personal investment and purchase of miners are not strong enough to recover costs, so it is almost impossible to get bitcoins. NFF takes advantage of the cloud network and responds to multiple block chain tasks at the same time, and multiplies the computing power by using cellular cluster technology.

GPU can be effectively used, access to the intelligent cloud computing network. NFF smart chain cloud also works with a number of professional mineral company in France and the United States to enclose the computing power of these companies into the bag. NFF smart chain cloud also owns cloud computing services in a number of companies such as Ali, Amazon, Microsoft, Google,Baidu,etc. Convenient and easy to use Ordinary users do not need to build a complex environment of the etheric, and there is no need to install a lot of complex professional tools. Smart chain cloud is based on ring0 level driven development to support multiple operating system platforms, such as windows, MacOS, Android, IOS, and so on.

Smart chain cloud will calculate the user equipment access network cloud, is still a whole lot of computing power, mining of competition in the etheric workshop. Smart chain cloud for the currencies of BTC, MTK, ETH, ETC, NFF and so on as many as 30 of the high value of the hot currency. Smart chain cloud will benefit back to the user according to the calculation contribution, the benefit is stable and reliable, the return profit is high. Revaluation Space In 2017, NFF and IDAX and other large international financial trading platforms reached strategic cooperation. Smart chain cloud, as a new cloud computing provider, has huge business in many aspects, such as education, medical science, scientific research, and network. NFF Team NFF intelligent chain cloud team was founded in 2000.

Full-stack developer working on web applications for 15 years with focus on financial apps in latest 3 years. Contribution of Java implementation of the Ethereum yellowpaper ethereumj is a pure-Java implementation of the Ethereum protocol. For high-level information about Ethereum and its goals, visit ethereum. The ethereum white paper provides a complete conceptual overview, and the yellow paper provides a formal definition of the protocol. Ethereum yellowpaper The Yellow Paper is a formal definition of the Ethereum protocol, originally by Gavin Wood, currently maintained by Nick Savers and with contributions from many people around the world. Contribution of Ethereum Network Stats This is a visual interface for tracking ethereum network status.

It is the front-end implementation for eth-net-intelligence-api. Java senior developer come from Maringá, Paraná, Brasil. Ethereum Mining Pool This pool is being further developed to provide an easy to use pool for Ethereum miners. This software is functional however an optimised release of the pool is expected soon. It provides quick access to market data for storage, analysis, visualization, indicator development, algorithmic trading, strategy backtesting, bot programming, webshop integration and related software engineering. Lightweight Ethereum blockchain explorer Etherchain Light is an Ethereum blockchain explorer built with NodeJS, Express and Parity. It does not require an external database and retrieves all information on the fly from a backend Ethereum node.

Profit Per P Per Day 0. Contact us The information you fill out will be sent directly to our service mailbox. The customer service will contact you. This post was authored by Nick Biasini, Edmund Brumaghin, Warren Mercer and Josh Reynolds with contributions from Azim Khodijbaev and David Liebenberg.

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This focus on mining isn’t entirely surprising, considering that various cryptocurrencies along with “blockchain” have been all over the news as the value of these currencies has exponentially increased. Adversaries have taken note of these gains and have been creating new attacks that help them monetize this growth. Over the past several months Talos has observed a marked increase in the volume of cryptocurrency mining software being maliciously delivered to victims. In this new business model, attackers are no longer penalizing victims for opening an attachment, or running a malicious script by taking systems hostage and demanding a ransom. Now attackers are actively leveraging the resources of infected systems for cryptocurrency mining. In these cases the better the performance and computing power of the targeted system, the better for the attacker from a revenue generation perspective. This is all done with minimal effort following the initial infection.

More importantly, with little chance of being detected, this revenue stream can continue in perpetuity. The value of many cryptocurrencies are skyrocketing. These attacks are much stealthier than their predecessors. Attackers are not stealing anything more than computing power from their victims and the mining software isn’t technically malware — So theoretically, the victims could remain part of the adversary’s botnet for as long as the attacker chooses.

Once the currency is mined, there is no telling what the attacker might do with it. Throughout the past couple of years ransomware has dominated the threat landscape and for good reason. It creates a highly profitable business model that allows attackers to directly monetize their nefarious activities. However, there are a couple of limitations with the use of ransomware. First is the fact that only a small percentage of infected users will actually pay the ransom demanded by the attacker. Over the past several months Talos has started to observe a marked increase in the volume of cryptocurrency miners being delivered to victims.

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Cryptocurrency and “blockchain” have been all over the news over the past several months as the value of these currencies has increased on an exponential path. One of the most effective ways to generate these currencies is through mining and adversaries are obviously paying attention. At a high level mining is simply using system resources to solve large mathematical calculations which result in some amount of cryptocurrency being awarded to the solvers. Before we get too deep into mining let’s address the currencies that make sense to mine. It’s been mined since its inception, but today mining isn’t an effective way to generate value.

The differences across the different cryptocurrencies are based on the hashing algorithm used. There are two ways that mining can be performed, either with a stand alone miner or by leveraging mining pools. Pool-based crypto mining allows you to pool the resources of multiple systems resulting in a higher hashrate and theoretically the production of increased amounts of currency. How does pool based mining work? Pool-based mining is coordinated through the use of ‘Worker IDs’.

These IDs are what tie an individual system to a larger pool and ensures the coin mined by the pool that is associated with a particular Worker ID are delivered to the correct user. It’s these Worker IDs that allowed us to determine the size and scale of some of the malicious operations as well as get an idea of the amount of revenue adversaries are generating. While in reality mining does not always guarantee successful generation of the cryptocurrency being mined, we will assume that for our purposes it is successful as it allows for a better understanding of the earning potential for these malicious mining pools. These miners typically operate from the command line and make use of a series of arguments used to establish how the mining should be performed. As you can see there are two primary argument values required: The URL for the mining pool and the ‘Worker ID’ that is used to tie the mining activity taking place on the system to a specific mining pool which is used to manage how payouts are conducted. However, through our investigation we have found a plethora of other parameters that attackers or miners can specify in an attempt to hide their activities.

Each mining program comes with its own set of flags that are taken advantage of in various ways by both legitimate and malicious miners. Talos has been observing discussions regarding the use of crypto miners as malicious payloads by both Chinese and Russian crimeware groups. We first observed Chinese actors discussing miners and the associated mining botnets in November 2016 and the interest has been steadily building since that time. From a Russian underground perspective there has been significant movement related to mining in the last six months. There have been numerous discussions and several offerings on top-tier Russian hacking forums.

The discussions have been split with the majority of the discussion around the sale of access to mining bots as well as bot developers looking to buy access to compromised hosts for the intended purpose of leveraging them for crypto mining. In general the attackers have been pleased with the amount of revenue the bots generate as well as the potential to grow that revenue. This is indicative of a threat that is poised to become more pervasive over time. Let’s take a look at how malicious mining works and the threats that are delivering them.

Malicious mining is the focus of this post since its an emerging trend across the threat landscape. Adversaries are always looking for ways to monetize their nefarious activities and malicious mining is quickly becoming a cash cow for the bad guys. Over the past several years ransomware has dominated the threat landscape from a financially motivated malware perspective and with good reason. Adversaries are left with an interesting decision, continue leveraging ransomware as a primary source of revenue as the pool of users and vulnerable systems continues to shrink or begin leveraging other payloads.

Easy and Fast

There are no shortage of options available to bad guys including banking trojans, bots, credential stealers, and click-fraud malware to name a few. So why choose crypto mining software? There are many reasons why adversaries might choose to leverage crypto mining to generate revenue. One likely reason is that this is a largely hands off infection to manage. Once a system has a miner dropped on it and starts mining nothing else is needed from an adversary perspective. There isn’t any command and control activity and it generates revenue consistently until its removed.

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So if an adversary notices a drop off in nodes mining to their pool it’s time to infect more systems. The biggest reason of them all is the potential monetary payout associated with mining activity. If it didn’t generate a profit, the bad guys wouldn’t take advantage of it. In this particular vein malicious miners could be a pretty large source of revenue.

The biggest cost associated with mining is the hardware to mine and the electricity to power the mining hardware. By leveraging malicious miners attackers can take both of those costs out of the equation altogether. Let’s take a deeper dive on the amount of revenue these systems can potentially generate. As mentioned earlier the hashrate for computers can vary widely depending on the type of hardware being used and the average system load outside of the miners. An average system would likely compute somewhere around 125 hashes per second.

Some of the largest botnets across the threat landscape consist of millions of infected systems under the control of an attacker. In one campaign that we analyzed, the attacker had managed to amass enough computing resources to reach a hash rate of 55. In this particular case the mining pool realized that the ‘Worker ID’ was being used by a botnet to mine Monero. In these cases, successful exploitation would often lead to the installation and execution of mining software.

Using an online calculator that takes hash rate, power consumption and cost then estimates profitability. Monero that would be mined per day was 2. This clearly indicates how lucrative this sort of operation could be for attackers. Analyzing the statistical data and payment history information associated with this ‘Worker ID’ shows that a total of 654 XMR have been received. While analyzing the malware campaigns associated with the distribution of mining software, we identified dozens of high volume ‘Worker IDs’. Taking a closer look at 5 of the largest operations we analyzed shows just how much money can be made by taking this approach. One additional benefit is that the value of the Monero mined has continued to rise over time.

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As long as the cryptocurrency craze continues and the value continues to increase, every piece of cryptocurrency mined increases in value which in turn increases the amount of revenue generated. Cryptocurrency miners are a new favorite of miscreants and are being delivered to end users in many different ways. The common ways we have seen miners delivered include spam campaigns, exploit kits, and directly via exploitation. There are ongoing spam campaigns that deliver a wide variety of payloads such as ransomware, banking trojans, miners, and much more. Below are examples of campaigns we’ve seen delivering miners. The way these infections typically work is that a user is sent an email with an attachment. These attachments typically have an archive containing a Word document that downloads the miner via a malicious macro or unpacks a compressed executable that initiates the mining infection.

Bitcoin mining pool bot net detection

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Below is an example, from late 2017, of one of these campaigns. It’s a job application spoof that includes a Word document purporting to be a resume of a potential candidate. As you can see the email contains a word document which, when opened, looks like the following. As is common for malicious Word documents, opening the document results in a file being downloaded. This is an example of a larger miner campaign dubbed ‘bigmac’ based on the naming conventions used. This image entices the user to enable macro content within the document that is blocked by default.

This will retrieve an executable remotely using System. In this case the binary that is downloaded is a portable executable written in VB6 that executes a variant of the xmrig XMR CPU miner. Dynamic miner activity can also be observed within the AMP for Endpoints product line. UPX packed variant of the xmrig XMR CPU miner. The following section will discuss these techniques in detail. The decryption function takes three integer parameters.

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At the calculated offset, the first four bytes is the offset of the ciphertext, and the next four is length of the string being decrypted. It then iterates for this length within an XOR for loop to decrypt the string at this offset. The result, in this case, being the string “-o pool. 4444 -u” which is the domain and port combination for the mining pool the miner is participating in and the username parameter without a value.

This prevents forced logoffs from remote administrators. This sets the maximum password age to unlimited, which in turn prevents password expiry. 0 This will prevent the computer from entering standby mode, thus continuing mining operations when the computer is idle. 99 This will prevent the screensaver from starting. Two GET requests are sent to the api.

Oddly enough this is not a valid . This further implies the possibility of a builder or distributed gateway being used. This could indicate warez as being a possible distribution vector for this malware. Throughout the month of November, we started observing a sample with the same command and control parameters, mining pool, and persistence executable name as Dark Test. However, it did not drop and execute a separate xmrig binary but contained a statically linked version instead.

VPS or analysis systems connected to using VNC. In addition to the spam campaigns above Talos has also been observing RIG exploit kit delivering miners via smokeloader over the last couple months. The actual infection via the exploit kit is pretty standard for RIG activity. That may not seem like a substantial amount of money, but consider that the miner could remain running for months, if not years without being impacted without additional maintenance required by the actor. The only operational costs are associated with renting the exploit kit and associated infrastructure.

The campaign appeared to pick up steam beginning in September 2017, but we have evidence of the miners being deployed from as far back as June or July of 2017. Suddenly, mining activity completely stopped toward the end of October, and started back up again in mid December. It’s currently still running as of the writing of this post. This shows the earning potential of using an exploit kit to deploy miners via a malware loader like smokeloader.

In addition to threats targeting users, Talos has also observed coin miners being delivered via active exploitation in our honeypot infrastructure. This includes leveraging multiple different exploits to deliver these types of payloads. When you take threats being delivered to users via email and web as well as internet connected systems being compromised to deliver a miner payload, it’s obvious that miners are being pushed by adversaries today much like ransomware was being pushed to systems a year ago. Based on this evidence, we began digging a little bit deeper on the actual mining activity and the systems that have already been mining.

Over the course of several months, we began looking for crypto miner activity on systems and uncovered prevalent threats associated with multiple different groups relying on familiar tricks to run on systems. Additionally, we found a large number of enterprise users running or attempting to run miners on their systems for potential personal gain. One thing that has been common with most of the malicious miners we found were the filename choices. Threat actors have chosen filenames that look harmless, such as “Windows 7. Talos also found examples of miners being pulled dynamically and run via the command line, an example of which is shown below.

Interestingly, we also found miners purporting to be anti-virus software, including our own free anti-virus product Immunet. Cryptocurrency miner payloads could be among some of the easiest money makers available for attackers. This is not to try and encourage the attackers, of course, but the reality is that this approach is very effective at generating long-term passive revenue for attackers. Attackers simply have to infect as many systems as possible, execute the mining software in a manner that makes it difficult to detect, and they can immediately begin generating revenue. The sheer volume of infected machines is how attackers can measure success with these campaigns.