The surge of cryptojacking campaigns

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary Recent cryptojacking campaigns disclosed that intruders exploited DLL Side-Loading issues in Microsoft OneDrive by writing a fake secur32.dll file to establish persistence and operate undetected on...

Hackers Targeting Unpatched Atlassian Confluence Servers to Deploy Crypto Miners

A now-patched critical security flaw affecting Atlassian Confluence Server that came to light a few months ago is being actively exploited for illicit cryptocurrency mining on unpatched installations. "If left unremedied and successfully exploited, this vulnerability could be used for multiple an...

Alibaba OSS Buckets Compromised to Distribute Malicious Shell Scripts via Steganography

In this blog entry, we discuss a malicious campaign that targets Alibaba Cloud’s OSS buckets with leaked credentials for malware distribution and cryptojacking...

This Cloud Botnet Has Hijacked 30,000 Systems to Mine Cryptocurrencies

The 8220 cryptomining group has expanded in size to encompass as many as 30,000 infected hosts, up from 2,000 hosts globally in mid-2021. "8220 Gang is one of the many low-skill crimeware gangs we continually observe infecting cloud hosts and operating a botnet and cryptocurrency miners through...

Cloud-based Cryptocurrency Miners Targeting GitHub Actions and Azure VMs

GitHub Actions and Azure virtual machines VMs are being leveraged for cloud-based cryptocurrency mining, indicating sustained attempts on the part of malicious actors to target cloud resources for illicit purposes. "Attackers can abuse the runners or servers provided by GitHub to run an...

New Syslogk Linux Rootkit Lets Attackers Remotely Command It Using "Magic Packets"

A new covert Linux kernel rootkit named Syslogk has been spotted under development in the wild and cloaking a malicious payload that can be remotely commandeered by an adversary using a magic network traffic packet. "The Syslogk rootkit is heavily based on Adore-Ng but incorporates new...

New Sysrv Botnet Variant Hijacking Windows and Linux with Crypto Miners

Microsoft is warning of a new variant of the Sysrv botnet that's exploiting multiple security flaws in web applications and databases to install coin miners on both Windows and Linux systems. The tech giant, which has called the new version Sysrv-K, is said to weaponize an array of exploits to ga...

DirtyMoe Botnet Gains New Exploits in Wormable Module to Spread Rapidly

The malware known as DirtyMoe has gained new worm-like propagation capabilities that allow it to expand its reach without requiring any user interaction, the latest research has found. "The worming module targets older well-known vulnerabilities, e.g., EternalBlue and Hot Potato Windows privilege...

LIVE Webinar: Key Lessons Learned from Major Cyberattacks in 2021 and What to Expect in 2022

With the COVID-19 pandemic continuing to impact, and perhaps permanently changing, how we work, cybercriminals again leveraged the distraction in new waves of cyberattacks. Over the course of 2021 we saw an increase in multiple attack approaches; some old, some new. Phishing and ransomware...

Cryptojacking Attacks Target Alibaba ECS Instances

Discover how some malicious groups disable features in Alibaba Cloud ECS instances for illicit mining of Monero...

What is Cryptojacking Attack ❓ Definition and Prevention

Introduction A conceivable threat to cryptocurrency owners, cryptojacking is an attack using which threat attackers can mine cryptocurrency at the expenditure of the target’s resources and network health. If not managed properly at the premature stage, the consequences of this vulnerability can b...

Cybercriminals Actively Target VMware vSphere with Cryptominers

Organizations running sophisticated virtual networks with VMware’s vSphere service are actively being targeted by cryptojackers, who have figured out how to inject the XMRig commercial cryptominer into the environment, undetected. Uptycs’ Siddharth Sharma has released research showing threat acto...

New Phorpiex Botnet Variant Steals Half a Million Dollars in Cryptocurrency

Cryptocurrency users in Ethiopia, Nigeria, India, Guatemala, and the Philippines are being targeted by a new variant of the Phorpiex botnet called Twizt that has resulted in the theft of virtual coins amounting to $500,000 over the last one year. Israeli security firm Check Point Research, which...

Groups Target Alibaba ECS Instances for Cryptojacking

We looked at how some malicious groups disable features in Alibaba Cloud ECS instances for illicit mining of Monero...

Researchers Warn of Linux Cryptojacking Attackers Operating from Romania

A threat group likely based in Romania and active since at least 2020 has been behind an active cryptojacking campaign targeting Linux-based machines with a previously undocumented SSH brute-forcer written in Golang. Dubbed "Diicot brute," the password cracking tool is alleged to be distributed v...

Linux-Focused Cryptojacking Gang Tracked to Romania

A cryptojacking gang that’s likely based in Romania is using a never-before-seen SSH brute-forcer dubbed “Diicot brute” to crack passwords on Linux-based machines with weak passwords. The point of the campaign is mainly to deploy Monero mining malware, Bitdefender researchers said in a report...

Hackers Crack Pirated Games with Cryptojacking Malware

A new Monero cryptojacking malware distributed via “cracked” versions of popular online games is wiping out antivirus programs AVs and surreptitiously mining cryptocurrency in more than a dozen countries, researchers have found. Dubbed “Crackonosh,” the malware — which has been active since June...

JavaScript Fraud: More Than Just Magecart and Skimming

The global pandemic has driven a sharp rise in online traffic that provides fertile ground for attackers to execute a growing number of more sophisticated client-side attacks. For example, Magecart-style attacks are used to steal sensitive information by skimming data either through a first-party...

Phishing Attacks Spawn Three New Malware Strains

Two waves of global financial phishing attacks that swamped at least 50 organizations in December have delivered three new malware families, according to a report from FireEye’s Mandiant cybersecurity team. On Tuesday, the team said that they’ve dubbed the hitherto-unseen malware strains...

Defending against cryptojacking with Microsoft Defender for Endpoint and Intel TDT

Cryptocurrency mining—once considered no more than a nuisance, a relatively benign activity that was a drain on machine resources—has been on the rise in recent years. This increase in cryptocurrency mining activity is driven by the increasing value of cryptocurrencies like Bitcoin, the growth in...