Adylkuzz cryptocurrency mining malware

The new attackware targets the same vulnerabilities that were exploited by the WannaCry ransomware, but unlike WannaCry, which froze computers and wreaked havoc worldwide on Friday, Adylkuzz is a cryptocurrency mining malware that takes over a machine and slows down computers and servers to use them to mine cryptocurrencies, like bitcoin and monero, according to Proofpoint and Yahoo News. Following the detection of the WannaCry attack on Friday, researchers at Proofpoint discovered a new attack linked to WannaCry called Adylkuzz, said Nicolas Godier, a researcher at the computer security firm. Instead of completely disabling an infected computer by encrypting data and seeking a ransom payment, Adylkuzz uses the machines it infects to "mine" in a background task a virtual currency, Monero, and transfer the money created to the authors of the virus. A recent report in the Washington Post said the hacking group is now claiming to have data on foreign nuclear arms programs.

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WATCH RELATED VIDEO: Adylkuzz CryptoMiner - A quick behavioural analysis

The NSA exploit used in the WannaCry cyberattack was also used to build a money-making botnet

F5 threat researchers have discovered a new Apache Struts campaign. This new campaign is a sophisticated multi-staged attack targeting internal networks with the NSA-attributed EternalBlue and EternalSynergy exploits. As we continue to research this campaign, we will update this publication.

This is what we know so far:. When looking more closely at the unusually high obfuscated payload, we discovered a much more sophisticated multi-staged attack, with lateral movement capabilities, leveraging the leaked NSA-attributed EternalBlue and EternalSynergy exploits. The Zealot campaign is currently mining the cryptocurrency Monero, however, attackers could use compromised systems to do whatever they want. The attack starts with the threat actor scanning the web and sending two HTTP requests.

One of the requests is the notorious Apache Struts exploit via the Content-Type header. While most of the similar Apache Struts campaigns target either Windows or Linux platforms, Zealot is equipped with payloads for both.

The command will download and execute a spearhead bash script. Zealot will try to fetch the script using several methods. It will try to connect to a remote server over a TCP socket and redirect the received data directly to the shell. It will terminate if it exists; then it will execute in a loop. At the time we conducted this research, we could not collect that additional python code as the server was down.

The attackers seem to be using the EmpireProject post-exploitation framework see section below which generates a python agent for both Linux and OS X. The Little Snitch check is part of this python agent. There is no binary for OSX. The way this script communicates with the server is levels of sophistication beyond the common botnet herder, so it grabbed our attention. The received response is curious, as well, because the content is encrypted using the RC4 cipher, so typical network inspection devices can see it but they cannot analyze or scan it.

Only the script has the key. The response is another piece of Python code that is decrypted using the RC4 cipher, and once decrypted, is executed. Once decoded two times, the result is another obfuscated script. Once de-obfuscated, it reveals a URL to another file to be downloaded from another domain. Once this wall of resistance is broken, all the action begins.

This main deployer will download miner malware and run it. It will then download the same malware as a DLL and use the reflective DLL injection technique to inject the malware into the PowerShell process for more stealth. If python 2. The original script was baseencoded and zipped 20 times. If the variable names and their values sound familiar, you are probably a fan of the legendary StarCraft game, same as the attacker.

Zealot, Raven, Observer, and Overlord are all types of characters in the game. The shellcodes in both exploits have PowerShell commands to run in them. Monero has become the cybercrime currency of choice due to its high anonymity. It is not known how much profit the threat actor has overall. After some more research on the deployed scripts, it seems that the Zealot attacker made use of the public EmpireProject, 3 which is a PowerShell and Python post-exploitation agent.

To obtain arbitrary code execution, attackers are using an ASP. The invoked shell will execute a baseencoded PowerShell script, the same one delivered via the Apache Struts exploit. Zealot seems to be the first Struts campaign using the NSA exploits to propagate inside internal networks. The Zealot campaign, however, seems to be opening new attack vector doors, automatically delivering malware on internal networks via web application vulnerabilities.

The level of sophistication we are currently observing in the Zealot campaign is leading us to believe that the campaign was developed and is being run by threat actors several levels above common bot herders.

Stay tuned for more updates from F5 Labs on this campaign. The information you provide will be treated in accordance with the F5 Privacy Notice. Welcome back! Need to change your email or add a new one? Click here. Maxim is a Security Research Group Manager at F5 Networks, leading innovative research of web vulnerabilities and denial of service, evolving threats analysis, attack signature development and product hacking. So, we get to work.

We obsess over effective attack methods. We monitor the growth of IoT and its evolving threats. We dive deep into the latest crypto-mining campaigns.

We analyze banking Trojan targets. We dissect exploits. We hunt for the latest malware. And then our team of experts share it all with you. For more than 20 years, F5 has been leading the app delivery space.

With our experience, we are passionate about educating the security community-providing the intel you need to stay informed so your apps can stay safe. Search Submit. Updated January 18, originally published December 15, Updated January 18, By Maxim Zavodchik Liron Segal. Download and Execute Methods Zealot will try to fetch the script using several methods. Figure 3: Testing whether the machine is already infected.

Figure 5: Embedded base64 encoded python code. Figure 6: Little Snitch firewall check. Note: At the time we conducted this research, we could not collect that additional python code as the server was down. Figure 9: Obfuscated script after 2 levels of base64 decoding.

Propagating in the Internal Network If python 2. Figure Names of variables and values taken from the StarCraft game. Figure Names of variables and values taken from the StarCraft game If the variable names and their values sound familiar, you are probably a fan of the legendary StarCraft game, same as the attacker.

Receives a shellcode as an argument. Figure Shellcode for Windows 8 contains encoded PowerShell code. Figure Mule malware miner value.

Figure Mule malware miner value Leveraging Off-the-Shelf Tools After some more research on the deployed scripts, it seems that the Zealot attacker made use of the public EmpireProject, 3 which is a PowerShell and Python post-exploitation agent.

Figure EmpireProject logo and tag line from github. Figure ASP. NET serialized object including encoded PowerShell payload.

Attack Type: Web Application Attack. Attack Method: Injection. Exploit: EternalBlue, EternalSynergy. Attack Motive: Cybercrime. Malware Type: Botnet. App Tiers Affected:. Related Content Cryptojacking. March 13, October 09, September 04, F5 Labs Newsletter. One email per week, with newsletter exclusives Latest security research insights CISO-level expert analysis.

You should receive your first email shortly. About the author. More articles from Maxim Zavodchik. Liron Segal is a researcher and contributing author for F5 Labs.

More articles from Liron Segal. Need-to-Know Expertly picked stories on threat intelligence. Top Risks. David Warburton. Hundreds of apps will be attacked by the time you read this. Every 9 hrs a critical vulnerability—with the potential for remote code execution—is released.

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The only reason nobody noticed these attacks is that this particular malware — named Adylkuzz — did not destroy user data and was programmed to close down SMB ports. While this action was done to prevent other malware from infecting the same computer and clogging precious mining resources, this had the secondary effect of protecting some previously vulnerable computers from the virulent WannaCry ransomware attacks that took place over the last days. No surprise here, as by that point Kaffeine was very well versed in detecting the NSA hacking tools. These scans predated WannaCry by almost 3 weeks, going back to April That's when he first noticed the Adylkuzz malware infecting computers with their SMB port exposed to the Internet. Over the course of time, Kaffeine discovered over 20 servers used to perform these massive SMB scans. According to Kaffeine, statistics suggest that this attack may be larger in scale than WannaCry.

We have been looking at the Crypto-Mining Malware Ecosystem for over a decade. This repository provides further details into our investigation.

Windows WannaCry: This separate, 'bigger' malware attack also uses NSA's exploit

These are the core obsessions that drive our newsroom—defining topics of seismic importance to the global economy. Our emails are made to shine in your inbox, with something fresh every morning, afternoon, and weekend. It sits hidden in your computer, a background process that would look legitimate to the naked eye, if a naked eye even bothered to look at it. This malware, which has been in the wild since the beginning of May, uses two of the same tools that made the May 12 WannaCry ransomware attack so successful. Together, the tools allow hackers to install backdoors on certain Windows computers and run programs in the background—any programs they want—without raising any alarms that would alert the user that their computer is infected. Once it infects a computer, Adylkuzz shuts down the networking service that makes Windows computers vulnerable to it, according to an analysis by the security firm Proofpoint. Like a parasite protecting its host, that action blocks further malware from getting into the computer using the same NSA exploits. That allows Adylkuzz to have the computer all to itself. With its free reign on a computer established, Adylkuzz begins mining for Monero, the digital currency.

WannaCry Again? Meet Adylkuzz, Its Sneaky Cryptocurrency Mining Sibling

adylkuzz cryptocurrency mining malware

Because your browser does not support JavaScript you are missing out on on some great image optimizations allowing this page to load faster. We couldn't find the malware. Windows Defender detects and removes this threat. This threat can use your PC to mine for Bitcoins. Find out ways that malware can get on your PC.

WannaCry is just a not-so-great piece of ransomware that piggybacked on a much bigger threat. Adylkuzz is a much quieter piece of malware that hides in the background, stealing CPU cycles to mine cryptocurrency.

The Adylkuzz Botnet – An Uninvited Guest

Cryptocurrency trading and mining have become an increasingly popular way to earn money. The latest chapter in mining operations is referred to as Adylkuzz. Adylkuzz malware targets vulnerable servers, personal computers, and other machines which are open to the exploits. WannaCry malware uses the same exploits to enter machines. Adylkuzz performed brilliantly in staying hidden.

WannaCry Has a More Lucrative Cousin That Mines Cryptocurrency for Its Masters

It is rather strange to think of cryptocurrency-mining malware as a potential ally in the ongoing fight against cryptocurrency ransomware. Interestingly enough, that is exactly what happened. A few weeks prior to the WannaCry attack, the Adylkuzz crypto-mining malware infected a lot of computers using the same exploit. This also prevented the WannaCry ransomware from infecting these same devices. This entire story has proven to be quite intriguing, to say the least. Adylkuzz is a cryptocurrency-mining malware infecting hundreds of Windows computers around the world. To do so, it uses the same NSA exploits used by the recent WannaCry ransomware, which caused major havoc around the world. This goes to show criminals are well aware of these NSA exploits and will attempt to use them for their own benefit.

In this article, I provide an analysis of this malware and show how it exploit in cryptocurrency mining malware, such as Adylkuzz.

The administrator of your personal data will be Threatpost, Inc. Detailed information on the processing of personal data can be found in the privacy policy. In addition, you will find them in the message confirming the subscription to the newsletter. As the first inkling of attribution emerged in the WannaCry ransomware outbreak, researchers found another attack using the same leaked NSA attack tools to spread the Adylkuzz cryptocurrency miner.

You may have seen news stories about malware called Adylkuzz. Microsoft's patches for supported versions of Windows address this vulnerability as well. Adylkuzz is causing some computers and servers around the world to perform slowly. Once it infects a computer, it downloads instructions, a crypto miner , and cleanup tools.

Liam Tung is a full-time freelance technology journalist who writes for several Australian publications.

Podcast Safety Tips. Cryptocurrency, a virtual form of currency designed to work as a secure form of exchange, has gained a lot of traction in the world of finance and technology. The practice has been around since , and anyone with access to the Internet, the required programs and hardware can participate in mining. In China, the ADB Miner malware is spreading and targeting thousands of Android devices for the primary purpose of mining cryptocurrency. The malware is spread through the publicly accessible Android Debug Bridge abd on an opened port

Just when the world is waking up to the onslaught of WannaCry and its capacity for chaos, there is news surfacing of another global attack, which proves that we are still grasping straws when it comes to protecting ourselves from cybercrimes. Adylkuzz Cryptocurrency Mining Malware , which is a computer virus with same modus operandi as WannaCry, has now been discovered. Here's all about it. It's to be noted that the newly discovered virus was present before WannaCry and is still going strong; it went unnoticed until now because it didn't demand any money like WannaCry did.

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