Cobalt Strike Vulnerability Affects Botnet Servers

Cobalt Strike is a security tool, used by penetration testers to simulate network attackers. But its also used by attackers -- from criminals to governments -- to automate their own attacks. Researchers have found a vulnerability in the product. The main components of the security tool are the...

Check your passwords! Synology NAS devices under attack from StealthWorker

Synology PSIRT Product Security Incident Response Team has put out a warning that it has recently seen and received reports about an increase in brute-force attacks against Synology devices. PSIRT suspects the botnet commonly known as StealthWorker is responsible for this increase in activity...

Hackers Exploiting New Auth Bypass Bug Affecting Millions of Arcadyan Routers

Unidentified threat actors are actively exploiting a critical authentication bypass vulnerability to hijack home routers as part of an effort to co-opt them to a Mirai-variant botnet used for carrying out DDoS attacks, merely two days after its public disclosure. Tracked as CVE-2021-20090 CVSS...

Home routers are being hijacked using vulnerability disclosed just 2 days ago

The early bird catches the worm. Unless the worm was early enough to hide. On August 3, 2021 a vulnerability that was discovered by Tenable was made public. Only two days later, on August 5, Juniper Threat Labs identified some attack patterns that attempted to exploit this vulnerability in the...

When coin miners evolve, Part 2: Hunting down LemonDuck and LemonCat attacks

Note: In this two-part blog series, we expose a modern malware infrastructure and provide guidance for protecting against the wide range of threats it enables. Part 1 covered the evolution of the threat, how it spreads, and how it impacts organizations. Part 2 provides a deep dive on the attacker...

When coin miners evolve, Part 2: Hunting down LemonDuck and LemonCat attacks

Note: In this two-part blog series, we expose a modern malware infrastructure and provide guidance for protecting against the wide range of threats it enables. Part 1 covered the evolution of the threat, how it spreads, and how it impacts organizations. Part 2 provides a deep dive on the attacker...

DDoS attacks in Q2 2021

News overview In terms of big news, Q2 2021 was relatively calm, but not completely eventless. For example, April saw the active distribution of a new DDoS botnet called Simps — the name under which it introduced itself to owners of infected devices. The malware creators promoted their brainchild...

Old crypto malware makes come back, hits Windows, Linux devices

By Deeba Ahmed LemonDuck was first discovered in China in 2019 as a cryptocurrency botnet that used affected systems for Monero mining. This is a post from HackRead.com Read the original post: Old crypto malware makes come back, hits Windows, Linux devices...

The life and death of the ZeuS Trojan

Whether youve read up on Greek mythology or youre simply a big fan of Marvel comics, the name "Zeus" should be familiar to you. In the context of cybercrime though, ZeuS aka the Zbot Trojan is a once-prolific malware that could easily be described as one of a handful of information stealers ahead...

Trickbot Malware Rebounds with Virtual-Desktop Espionage Module

The Trickbot trojan is in resurgence mode, with its operators filling out infrastructure globally and releasing an updated version of its “vncDll” module, used for monitoring and intelligence gathering, researchers said. According to an analysis this week from Bitdefender, there has been “a...

Trickbot Malware Returns with a new VNC Module to Spy on its Victims

Cybersecurity researchers have opened the lid on the continued resurgence of the insidious Trickbot malware, making it clear that the Russia-based transnational cybercrime group is working behind the scenes to revamp its attack infrastructure in response to recent counter efforts from law...

TrickBot Botnet Found Deploying A New Ransomware Called Diavol

Threat actors behind the infamous TrickBot malware have been linked to a new ransomware strain named "Diavol," according to the latest research. Diavol and Conti ransomware payloads were deployed on different systems in a case of an unsuccessful attack targeting one of its customers earlier this...

New Mirai-Inspired Botnet Could Be Using Your KGUARD DVRs in Cyber Attacks

Cybersecurity researchers on Thursday revealed details about a new Mirai-inspired botnet called "miraiptea" that leverages an undisclosed vulnerability in digital video recorders DVR provided by KGUARD to propagate and carry out distributed denial-of-service DDoS attacks. Chinese security firm...

Police seize DoubleVPN data, servers, and domain

A coordinated effort between global law enforcement agencies—led by the Dutch National Police—shut down a VPN service that was advertised on cybercrime forums. The VPN company promised users the ability to double- and triple-encrypt their web traffic to obscure their location and identity. The...

A week in security (June 21 – June 27)

Last week on Malwarebytes Labs: Want to stop ransomware attacks? Send the cybercriminals to jail, says Brian Honan: Lock and Code S02E11 Atomic research institute breached via VPN vulnerability Hotel staff bust Hermes SMS scammer with suspiciously large number of cables City of Liège hit by...

TrickBot Coder Faces Decades in Prison

The U.S. Department of Justice announced on Friday the arraignment of a Latvian for her alleged role in creating and operating the infamous TrickBot malware. Alla Witte, who is known in cybercrime circles by the handle “Max,” was arrested in February in Miami. According to the indictment, she’s o...

Evolution of JSWorm ransomware

Introduction Over the past few years, the ransomware threat landscape has been gradually changing. We have been witness to a paradigm shift. From the massive outbreaks of 2017, such as WannaCry, NotPetya, and Bad Rabbit, a lot of ransomware actors have moved to the covert but highly profitable...

Phorpiex morphs: How a longstanding botnet persists and thrives in the current threat environment

Phorpiex, an enduring botnet known for extortion campaigns and for using old-fashioned worms that spread via removable USB drives and instant messaging apps, began diversifying its infrastructure in recent years to become more resilient and to deliver more dangerous payloads. Today, the Phorphiex...

Phorpiex morphs: How a longstanding botnet persists and thrives in the current threat environment

Phorpiex, an enduring botnet known for extortion campaigns and for using old-fashioned worms that spread via removable USB drives and instant messaging apps, began diversifying its infrastructure in recent years to become more resilient and to deliver more dangerous payloads. Today, the Phorphiex...

Keksec Cybergang Debuts Simps Botnet for Gaming DDoS

A recently developed botnet named “Simps” has emerged from the cyber-underground to carry out distributed denial-of-service DDoS attacks on gaming targets and others, using internet of things IoT nodes. It’s part of the toolset used by the Keksec cybercrime group, researchers said. According to t...