Dofoil cryptocurrency miner
Microsoft has released a blog post detailing that its Windows Defender Windows 7, 8. Windows Defender uses behavior-based signals and machine learning models to detect and intercept nearly 80, high-level Trojan instances. The company claims that these Trojans are a variant of Dofoil and are accompanied by the payload of a miner. Due to the current demand for cryptocurrencies, the Dofoil malware family is considered particularly dangerous because the attacker has the opportunity to include cryptocurrency mining components in their code. The cryptocurrency mining activity detected by Windows Defender uses code injection technology on explorer.
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- Microsoft Saves 400,000 Windows Users From Cryptomining Malware
- Behavior monitoring combined with machine learning spoils a massive Dofoil coin mining campaign
- Microsoft blocks rapidly spreading mining malware
- Hacked BitTorrent client MediaGet infected 400k PCs with crypto-mining malware
- Microsoft Thwarts Massive Electroneum Mining Malware Campaign
- 500,000 computers infected in 12 hours, mining Electroneum
- Poisoned peer-to-peer app kicked off Dofoil coin miner outbreak
Microsoft Saves 400,000 Windows Users From Cryptomining Malware
The ransomware menace is not over but cybercriminals on Tuesday showed yet again that even when half a million vulnerable PCs are at stake, a cryptocurrency miner is the payload of choice.
Microsoft on Wednesday touted a defensive victory over a fast-moving campaign that could have caused half a million PCs, unbeknownst to their owners, to work double-time on mining cryptocurrency for the sole benefit of cybercriminals. Microsoft blocked 80, Dofoil infection attempts on Tuesday, and over a 12 hour period after the initial attack blocked over , further infection attempts.
While overworking a CPU might seem harmless compared to fe encrypting ransomware, Microsoft took the outbreak seriously because the Dofoil infections could have delivered ransomware.
According to Microsoft , 73 percent of attempted Dofoil infections on Wednesday occurred in Russia, while 18 percent occurred in Turkey and and 4 percent in Ukraine. Researchers at Kaspersky have also observed process hollowing used in campaigns to spread cryptocurrency miners. Victims were infected after being encountering adware and installing a bogus version of a legitimate app.
Kaspersky noted it was difficult for antivirus to detect the malware because it triggered a system reboot when the victim attempted to kill the process through Task Manager. Tags malware Windows Bitcoin. From banks to Bitcoin: Trickbot shifts online hustle to cryptocurrencies. Show Comments.
Behavior monitoring combined with machine learning spoils a massive Dofoil coin mining campaign
It was published recently that a malware campaign tried to infect , users in 12 hours on March 6, The malware is a variant of Dofoil, carrying a cryptocurrency miner. As published by bleepingcomputer, the malicious code spins off a second explorer. The good news is that SentinelOne customers are fully protected from Dofoil. Within milliseconds, SentinelOne technology detects Dofoil as harmful, classifies and prevents it from executing. On this demo, you can see how SentinelOne version 2. Once the device is offline, we have copied the malicious samples to the desktop, and immediately the agent quarantined the files, blocking and preventing any chance for the Trojan ever to run and do harm.
Microsoft blocks rapidly spreading mining malware
Notably, the number of malicious code,software or tools present on the online space are also very large and exist in many types — virus, spam, malware, spyware, phishing software — the list goes on, and will continue because the vulnerabilities are innate in the Internet architecture. The possibilities are harrowing with recent ones being ransomware such as Petya , WannaCry and coin mining software entering the cryptocurrency domain. Dofoil, also known as Smoke Loader among cybersecurity experts, is a software application which downloads other malicious software or called malware onto the host computer systems and servers. It mainly infects them through spams and exploit kits , that detect vulnerabilities and security loopholes and intrudes without the host knowing it. The attackers usually use command-and-control servers C2 servers on the affected systems to maintain communications amongst themselves. Although developed quite earlier, Dofoil was almost undetectable until recent reports of Microsoft and Malwarebytes addressed the problem and eliminated the threat. Windows Defender, the standalone antivirus product by Microsoft detected and protected users from Dofoil attack that occured on March 6, The cryptocoin mining attack was mostly concentrated in Russia and spread to regions around it, such as Ukraine and Turkey. Windows Defender initially detected the spread through its behavioral monitoring service, relaying the emergency signals to its cloud protection services.
Hacked BitTorrent client MediaGet infected 400k PCs with crypto-mining malware
The trend of hijacking unsuspecting users computer to mine cryptocurrency continues, and the attacks take different forms. On March 6th, Windows Defender Anti-Virus AV detected and largely blocked a malware that infected nearly , computers and installed cryptocurrency miner code without the knowledge of users. Cryptocurrency mining is a complex, resource-intensive, and competitive process. A miner is successful when he creates a new block in the blockchain underlying the particular cryptocurrency. Miners get a small fraction of the cryptocurrency when they are successful in creating a new block.
Microsoft Thwarts Massive Electroneum Mining Malware Campaign
On March 7, we reported that a massive Dofoil campaign attempted to install malicious cryptocurrency miners on hundreds of thousands of computers. Windows Defender Antivirus, with its behavior monitoring, machine learning technologies, and layered approach to security detected and blocked the attack within milliseconds. Windows 10 S , a special configuration of Windows 10 providing Microsoft-verified security, was not vulnerable to this attack. This feature, currently in preview, is designed specifically for these kinds of outbreaks and delivers protections in near real time. Immediately upon discovering the attack, we looked into the source of the huge volume of infection attempts.
500,000 computers infected in 12 hours, mining Electroneum
Russian based BitTorrent client MediaGet is getting a lot of attention in the news. ZDNet is reporting that a poisoned update from the BitTorrent client helped spread the Dofoil malware. From the report:. The Dofoil outbreak that attempted to infect over , Windows PCs within hours last week was caused by attack on an update server that replaced a BitTorrent client called MediaGet with a near-identical but back-doored binary. Microsoft treats MediaGet as a potentially unwanted application, but in this case the Russian-developed BitTorrent client was a bridge to victims. As Windows Defender researchers have highlighted, the Dofoil outbreak was a priority because it could have just as easily dropped ransomware using the attack vector.
Poisoned peer-to-peer app kicked off Dofoil coin miner outbreak
The surge in Bitcoin prices has driven widescale interest in cryptocurrencies. While the future of digital currencies is uncertain, they are shaking up the cybersecurity landscape as they continue to influence the intent and nature of attacks. Cybercriminals gave cryptocurrencies a bad name when ransomware started instructing victims to pay ransom in the form of digital currencies, most notably Bitcoin, the first and most popular of these currencies.
These days, most malware employs a long attack chain with anti-analysis techniques to make it more difficult to detect the payload and harder to analyze by security researchers. More and more frequently, they are also incorporating coin miners in attacks. Such is the case with a newly observed variant of the Dofoil also known as Smoke Loader coin miner trojan , which includes a resource-draining cryptocurrency-mining payload. This latest Dofoil strain entered the scene earlier this month and is currently still active. With the growing popularity and profitability of cryptocurrency, malware authors are often adding coin mining features into their attacks.
Clipboard Hijacker Malware. Cryptocurrency has made a number of profits for the holders, and it attracts hacker to mine for the money in the past time. How does the attacker steal money with the Clipboard Hijacker Malware? To send cryptocurrency, users should use a flexible address to finish the transfer. As a result, most of them are likely to paste their addresses to the clipboard for convenient use. Once an address is detected, the malware will replace it with an address that they control.
Free Scanner detects all malware on your PC. To remove malware, you will need to purchase the licensed version of the software. On March 6th windows Machine learning algorithms detected more then , computers infected with a cryptocurrency mining malware.