Stealthy Symbiote Linux malware is after financial institutions

Symbiote, a new "nearly impossible to detect" Linux malware, targeted financial sectors in Latin America—and the threat actors behind it might have links to Brazil. These findings were revealed in a recent report, a joint effort between the Blackberry Research Team and Dr. Joakim Kennedy, a...

Linux Malware Deemed ‘Nearly Impossible’ to Detect

A new Linux malware that’s “nearly impossible to detect” can harvest credentials and gives attackers remote access and rootkit functionality by acting in a parasitic way to infect targets, researchers said. Researchers from The BlackBerry Research and Intelligence Team have been tracking the...

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...

Symbiote: A Stealthy Linux Malware Targeting Latin American Financial Sector

Cybersecurity researchers have taken the wraps off what they call a "nearly-impossible-to-detect" Linux malware that could be weaponized to backdoor infected systems. Dubbed Symbiote by threat intelligence firms BlackBerry and Intezer, the stealthy malware is so named for its ability to conceal...

5 Linux malware families SMBs should protect themselves against

There’s no shortage of reasons why an SMB might use Linux to run their business: There are plenty of distros to choose from, it’s generally free, and perhaps above all — it’s secure. The common wisdom goes that Linux malware is rare, and for the most part this is true. Thanks to its built-in...

Massive increase in XorDDoS Linux malware in last six months

Microsoft says its recorded a massive increase in XorDDoS activity 254 percent in the last six months. XorDDoS, a Linux Trojan known for its modularity and stealth, was first discovered in 2014 by the white hat research group, MalwareMustDie MMD. MMD believed the Linux Trojan originated in China...

Avast Antivirus 权限许可和访问控制问题漏洞

Avast Antivirus is a suite of antivirus software from the Czech company Avast. A vulnerability exists in Avast Antivirus prior to version 22.1 and AVG Antivirus prior to version 22.1 due to a Permission Granting and Access Control Issue vulnerability that arises when the application does not...

Avast Antivirus和AVG Antivirus 资源管理错误漏洞

Avast Antivirus is a suite of antivirus software from the Czech company Avast. A vulnerability exists in Avast Antivirus prior to version 22.1 and AVG Antivirus prior to version 22.1 due to a security restriction not being properly applied by the application in the "Anti Rootkit" driver in...

Deep Panda deploys new rootkit “Fire Chili” by exploiting Log4shell in VMware horizon

THREAT LEVEL: Red For a detailed advisory, download the pdf file here Deep Panda, a Chinese APT group, took advantage of the well-known Log4Shell vulnerability in VMware Horizon servers to deploy a backdoor, rootkit, and steal sensitive data. This threat actor is primarily targeting firms in the...

Chinese Hackers Target VMware Horizon Servers with Log4Shell to Deploy Rootkit

A Chinese advanced persistent threat tracked as Deep Panda has been observed exploiting the Log4Shell vulnerability in VMware Horizon servers to deploy a backdoor and a novel rootkit on infected machines with the goal of stealing sensitive data. "The nature of targeting was opportunistic insofar...

'Purple Fox' Hackers Spotted Using New Variant of FatalRAT in Recent Malware Attacks

The operators of the Purple Fox malware have retooled their malware arsenal with a new variant of a remote access trojan called FatalRAT, while also simultaneously upgrading their evasion mechanisms to bypass security software. "Users' machines are targeted via trojanized software packages...

A new rootkit comes to an ATM near you

Its not unusual to hear about malware created to affect automated teller machines ATMs. Malware can be planted at the ATMs PC or its network, or attackers could launch a Man-in-the-Middle MiTM attack. Recently, a new rootkit, which the Mandiant Advanced Practices team have named CAKETAP, was foun...

Hackers Target Bank Networks with new Rootkit to Steal Money from ATM Machines

A financially motivated threat actor has been observed deploying a previously unknown rootkit targeting Oracle Solaris systems with the goal of compromising Automatic Teller Machine ATM switching networks and carrying out unauthorized cash withdrawals at different banks using fraudulent cards...

Daxin Espionage Backdoor Ups the Ante on Chinese Malware

The Daxin malware is taking aim at hardened government networks around the world, according to researchers, with the goal of cyberespionage. The Symantec Threat Hunter team noticed the advanced persistent threat APT weapon in action in November, noting that it’s “the most advanced piece of malwar...

China-linked Daxin Malware Targeted Multiple Governments in Espionage Attacks

A previously undocumented espionage tool has been deployed against selected governments and other critical infrastructure targets as part of a long-running espionage campaign orchestrated by China-linked threat actors since at least 2013. Broadcom's Symantec Threat Hunter team characterized the...

Broadcom Software Discloses APT Actors Deploying Daxin Malware in Global Espionage Campaign

Broadcom Software—an industry member of CISA’s Joint Cyber Defense Collaborative JCDC—uncovers an advanced persistent threat APT campaign against select governments and other critical infrastructure targets in a publication titled Daxin: Stealthy Backdoor Designed for Attacks Against Hardened...

MoonBounce: New malware deployed by APT41 in UEFI firmware

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here. MoonBounce is a new type of malware that hides in the most complex part of an Operating System OS, the Basic Input Output System BIOS chip, and thus persists even after reinstalling your OS or formatting your hard drive...

Chinese Hackers Spotted Using New UEFI Firmware Implant in Targeted Attacks

A previously undocumented firmware implant deployed to maintain stealthy persistence as part of a targeted espionage campaign has been linked to the Chinese-speaking Winnti advanced persistent threat group APT41. Kaspersky, which codenamed the rootkit MoonBounce, characterized the malware as the...

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...

A week in security (January 3 – 9)

Last week on Malwarebytes Labs: Ransomware attacks Finalsite, renders 8,000 school sites unreachable for days Patchwork APT caught in its own web Sophisticated phishing scheme spent years robbing authors of their unpublished work Google and Facebook fined $240 million for making cookies hard to...