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Miles Brown
Miles Brown

How To Get Crypto-mining Malware Samples [duplicate] _BEST_

The malware was named Xanthe and its main purpose is to hijack the resources of a compromised host to mine cryptocurrency. We discovered a link between the two campaigns when analyzing the infrastructure behind Abcbot. Once we began comparing analysis of malware samples from both campaigns, similarities within the code and feature-sets of both malware families became apparent too.

How to get crypto-mining malware samples [duplicate]

Readers with some experience in this field will have probably already considered the fact that the samples analysed in both of these campaigns are shell scripts and, therefore, incredibly easy to copy. This is, of course, common. Code reuse and even like-for-like copying is often seen between malware families and specific samples on any platform. It makes sense from a development perspective; just as code for legitimate software is reused to save development time, the same occurs with illegitimate or malicious software.

The report, released yesterday, has analyzed 629,126 malware samples that have been detected as part of coin-mining operations. The research didn't analyze in-browser miners (cryptojackers), but only traditional malware families that infected desktops and servers since June last year, when there was a significant spike in coin-mining operations.

By querying nine mining pools (which allow third-parties to query their payment stats) with the 2,341 Monero addresses researchers found embedded in the 531,6663 malware samples that focused on mining Monero, they were able to determine the amount of funds these groups have made in the past year.

The best way to detect cryptojacking attacks, according to the report, is to use network traffic analytics (NTA) to identify internal hosts that are communicating the results of mining work to the outside since this communication is required to monetize the attack. The communications to look for are connections to mining pools. However, many cryptomining malware samples connect to a command-and-control host that acts as a network proxy to avoid being detected. More sophisticated anomaly detection techniques are necessary to identify the threat in these cases. For example, one might look for connections to the outside world from hosts that historically never connected to the outside world.

In the 90 days between September 1 and November 30, 2022, Cylance Endpoint Security solutions by BlackBerry stopped 1,757,248 malware-based cyberattacks. On average, threat actors deployed approximately 19,524 malicious samples per day against customers protected by our technologies. These threats included 133,695 unique malware samples, which translates to an average of 1,485 novel malware samples per day and 62 samples per hour: in other words, an average of roughly one new sample per minute.

The following graph shows the dynamics of potential cyberattacks that Cylance Endpoint Security solutions prevented between September 1 and November 30, 2022. The spikes during week 4 (September 29 to October 5) and week 7 (October 20 to October 26) were a result of threat actors reusing malware samples.

BlackBerry has noticed the increasing use of GoLang to target macOS systems as part of a wider cross-platform attack against multiple platforms for opportunistic attacks like malicious spam (malspam). To operate effectively on multiple platforms, these attacks rely on simple functions that exist across all platforms. Most proxy malware samples observed are proxy agents that attack browsers that are available on multiple platforms.

According to our telemetry, Cylance Endpoint Security solutions stopped 7,748 unique malware samples targeting the healthcare industry during this reporting period, accounting for an average of more than 80 unique malware samples per day. The most popular Trojan was Qakbot, which has been used by cybercriminals since at least 2012 and poses a high risk to the healthcare industry. In 2022, Qakbot was mostly used by affiliates deploying Black Basta ransomware. Because Emotet did not operate many campaigns after its recent four-month shutdown and TrickBot seems more focused on improving its Bumblebee malware, we believe that Qakbot continues to be the most active Trojan facilitating healthcare network access for RaaS affiliates and IABs.

The financial industry has historically been targeted by cybercriminals as well as nation-state threat actors who reside in areas affected by financial sanctions. During this 90-day reporting period, Cylance Endpoint Security solutions stopped 9,721 unique malware samples launched against targets in the financial industry, with an average of about 108 unique malicious samples identified per day.

McAfee has released its McAfee Labs Threats Report: June 2018, examining the growth and trends of new malware, ransomware, and other threats in Q1 2018. McAfee Labs saw on average five new threat samples every second, including growth in cryptojacking and other cryptocurrency mining malware, and notable campaigns demonstrating a deliberate drive to technically improve upon the most sophisticate established attacks of 2017. 350c69d7ab


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