Linux Malware Using SHC Compiler Installs CoinMiner and DDoS Bots

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary A new strain of Linux malware, developed using the Shc compiler, has been found to install a CoinMiner on infected systems. It is believed that this malware is being spread through dictionary attacks on...

New shc-based Linux Malware Targeting Systems with Cryptocurrency Miner

A new Linux malware developed using the shell script compiler shc has been observed deploying a cryptocurrency miner on compromised systems. "It is presumed that after successful authentication through a dictionary attack on inadequately managed Linux SSH servers, various malware were installed o...

Cryptocurrency Mining Campaign Hits Linux Users with Go-based CHAOS Malware

A cryptocurrency mining attack targeting the Linux operating system also involved the use of an open source remote access trojan RAT dubbed CHAOS. The threat, which was spotted by Trend Micro in November 2022, remains virtually unchanged in all other aspects, including when it comes to terminatin...

Iranian Government-Sponsored APT Actors Compromise Federal Network, Deploy Crypto Miner, Credential Harvester

Summary From mid-June through mid-July 2022, CISA conducted an incident response engagement at a Federal Civilian Executive Branch FCEB organization where CISA observed suspected advanced persistent threat APT activity. In the course of incident response activities, CISA determined that cyber...

Iranian Hackers Compromised a U.S. Federal Agency's Network Using Log4Shell Exploit

Iranian government-sponsored threat actors have been blamed for compromising a U.S. federal agency by taking advantage of the Log4Shell vulnerability in an unpatched VMware Horizon server. The details, which were shared by the U.S. Cybersecurity and Infrastructure Security Agency CISA, come in...

CISA and FBI Release Advisory on Iranian Government-Sponsored APT Actors Compromising Federal Network

Today, CISA and the Federal Bureau of Investigation FBI published a joint Cybersecurity Advisory CSA, Iranian Government-Sponsored APT Actors Compromise Federal Network, Deploy Crypto Miner, Credential Harvester. The CSA provides information on an incident at a Federal Civilian Executive Branch...

New Cryptojacking Campaign Targeting Vulnerable Docker and Kubernetes Instances

A new cryptojacking campaign has been uncovered targeting vulnerable Docker and Kubernetes infrastructures as part of opportunistic attacks designed to illicitly mine cryptocurrency. Cybersecurity company CrowdStrike dubbed the activity Kiss-a-dog, with its command-and-control infrastructure...

Over 39,000 Unauthenticated Redis Instances Found Exposed on the Internet

An unknown attacker targeted tens of thousands of unauthenticated Redis servers exposed on the internet in an attempt to install a cryptocurrency miner. It's not immediately known if all of these hosts were successfully compromised. Nonetheless, it was made possible by means of a "lesser-known...

New Orchard Botnet Uses Bitcoin Founder's Account Info to Generate Malicious Domains

A new botnet named Orchard has been observed using Bitcoin creator Satoshi Nakamoto's account transaction information to generate domain names to conceal its command-and-control C2 infrastructure. "Because of the uncertainty of Bitcoin transactions, this technique is more unpredictable than using...

Hackers Exploited Atlassian Confluence Bug to Deploy Ljl Backdoor for Espionage

A threat actor is said to have "highly likely" exploited a security flaw in an outdated Atlassian Confluence server to deploy a never-before-seen backdoor against an unnamed organization in the research and technical services sector. The attack, which transpired over a seven-day-period during the...

Panchan: A New Golang-based Peer-To-Peer Botnet Targeting Linux Servers

A new Golang-based peer-to-peer P2P botnet has been spotted actively targeting Linux servers in the education sector since its emergence in March 2022. Dubbed Panchan by Akamai Security Research, the malware "utilizes its built-in concurrency features to maximize spreadability and execute malware...

Rise in XorDdos: A deeper look at the stealthy DDoS malware targeting Linux devices

In the last six months, we observed a 254% increase in activity from a Linux trojan called XorDdos. First discovered in 2014 by the research group MalwareMustDie, XorDdos was named after its denial-of-service-related activities on Linux endpoints and servers as well as its usage of XOR-based...

Haskers Gang Gives Away ZingoStealer Malware to Other Cybercriminals for Free

A crimeware-related threat actor known as Haskers Gang has released an information-stealing malware called ZingoStealer for free on, allowing other criminal groups to leverage the tool for nefarious purposes. "It features the ability to steal sensitive information from victims and can download...

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...

Answering Log4Shell-related questions

Important notice On December 18th, Log4j version 2.17.0 was released to address open vulnerabilities. It is highly recommended to update your systems as soon as possible. History of the Log4j library vulnerabilities CVE-2021-44228 initial vulnerability – partially fixed in 2.15.0 CVE-2021-45046...

FreakOut Botnet Turns DVRs Into Monero Cryptominers

Threat group FreakOut’s Necro botnet has developed a new trick: infecting Visual Tools DVRs with a Monero miner. Juniper Threat Labs researchers have issued a report detailing new activities from FreakOut, also known as Necro Python and Python.IRCBot. In late September, the team noticed that the...

Attackers exploit CVE-2021-26084 for XMRig crypto mining on affected Confluence servers

Vulnerability Overview On August 25, 2021 a security advisory was released for a vulnerability identified in Confluence Server titled “CVE-2021-26084: Atlassian Confluence OGNL Injection”. The vulnerability allows an unauthenticated attacker to perform remote command execution by taking advantage...

Golang Cryptomining Worm Offers 15% Speed Boost

A freshly discovered variant of the Golang crypto-worm was recently spotted dropping Monero-mining malware on victim machines; in a switch-up of tactics, the payload binaries are capable of speeding up the mining process by 15 percent, researchers said. According to research from Uptycs, the worm...

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...

Malicious Docker Cryptomining Images Rack Up 20M Downloads

At least 30 malicious images in Docker Hub, with a collective 20 million downloads, have been used to spread cryptomining malware, according to an analysis. The malicious images spread across 10 different Docker Hub accounts have raked in around $200,000 from cryptomining, according to Aviv Sasso...