Beware of Fake Telegram Messenger App Hacking PCs with Purple Fox Malware

Trojanized installers of the Telegram messaging application are being used to distribute the Windows-based Purple Fox backdoor on compromised systems. That's according to new research published by Minerva Labs, describing the attack as different from intrusions that typically take advantage of...

New EwDoor Botnet Targeting Unpatched AT&T Network Edge Devices

A newly discovered botnet capable of staging distributed denial-of-service DDoS attacks targeted unpatched Ribbon Communications formerly Edgewater Networks EdgeMarc appliances belonging to telecom service provider AT&T by exploiting a four-year-old flaw in the network appliances. Chinese tech...

CVE-2021-36798

A Denial-of-Service DoS vulnerability was discovered in Team Server in HelpSystems Cobalt Strike 4.2 and 4.3. It allows remote attackers to crash the C2 server thread and block beacons' communication with it...

CVE-2021-36798

A Denial-of-Service DoS vulnerability was discovered in Team Server in HelpSystems Cobalt Strike 4.2 and 4.3. It allows remote attackers to crash the C2 server thread and block beacons' communication with it...

Denial of service

A Denial-of-Service DoS vulnerability was discovered in Team Server in HelpSystems Cobalt Strike 4.2 and 4.3. It allows remote attackers to crash the C2 server thread and block beacons' communication with it...

PT-2021-21365

Name of the Vulnerable Software and Affected Versions HelpSystems Cobalt Strike versions 4.2 through 4.3 Description A Denial-of-Service DoS issue was discovered in Team Server. It allows remote attackers to crash the C2 server thread and block beacons' communication with it. Recommendations For...

CVE-2021-36798: Allocation of Resources Without Limits or Throttling

A Denial-of-Service DoS vulnerability was discovered in Team Server in HelpSystems Cobalt Strike 4.2 and 4.3. It allows remote attackers to crash the C2 server thread and block beacons' communication with it...

Live Cybersecurity Webinar — Deconstructing Cobalt Strike

Organizations' cybersecurity capabilities have improved over the past decade, mostly out of necessity. As their defenses get better, so do the methods, tactics, and techniques malicious actors devise to penetrate their environments. Instead of the standard virus or trojan, attackers today will...

Researchers Discover First Known Malware Targeting Windows Containers

Security researchers have discovered the first known malware, dubbed "Siloscope," targeting Windows Server containers to infect Kubernetes clusters in cloud environments. "Siloscape is heavily obfuscated malware targeting Kubernetes clusters through Windows containers," said Unit 42 researcher...

Email Campaign Spreads StrRAT Fake-Ransomware RAT

An email campaign is delivering a Java-based remote access trojan RAT that can not only steal credentials and take control of systems, but also presents as fake ransomware, Microsoft researchers have discovered. The Microsoft Security Intelligence MSI team has outlined details of a “massive email...

Experts uncover a new Banking Trojan targeting Latin American users

Researchers on Tuesday revealed details of a new banking trojan targeting corporate users in Brazil at least since 2019 across various sectors such as engineering, healthcare, retail, manufacturing, finance, transportation, and government. Dubbed "Janeleiro" by Slovak cybersecurity firm ESET, the...

FIN8 Hackers Return With More Powerful Version of BADHATCH PoS Malware

Threat actors known for keeping a low profile do so by ceasing operations for prolonged periods in between to evade attracting any attention as well as constantly refining their toolsets to fly below the radar of many detection technologies. One such group is FIN8, a financially motivated threat...

How Page Integrity Manager Detects Real-World Magecart Attacks

Written by Ziv Eli - Engineering Manager, Security and Maor Hod - Senior Product Manager, Security In this blog, we will take a look at and break down a recent Magecart attack detected and mitigated by Page Integrity Manager. The impacted customer operates a large international e-commerce busines...

In-the-Wild Series: Android Post-Exploitation

This is part 5 of a 6-part series detailing a set of vulnerabilities found by Project Zero being exploited in the wild. To read the other parts of the series, see the introduction post. Posted by Maddie Stone, Project Zero A deep-dive into the implant used by a high-tier attacker against Android...

Researchers Find Links Between Sunburst and Russian Kazuar Malware

Cybersecurity researchers, for the first time, may have found a potential connection between the backdoor used in the SolarWinds hack to a previously known malware strain. In new research published by Kaspersky researchers today, the cybersecurity firm said it discovered several features that...

Blackrota Golang Backdoor Packs Heavy Obfuscation Punch

Researchers have discovered a new backdoor written in the Go programming language Golang, which turned their heads due to its heavy level of obfuscation. The backdoor, called Blackrota, was first discovered in a honeypot owned by researchers, attempting to exploit an unauthorized-access...

New ModPipe Point of Sale (POS) Malware Targeting Restaurants, Hotels

Cybersecurity researchers today disclosed a new kind of modular backdoor that targets point-of-sale POS restaurant management software from Oracle in an attempt to pilfer sensitive payment information stored in the devices. The backdoor — dubbed "ModPipe" — impacts Oracle MICROS Restaurant...

Ghimob Android Banking Trojan Targets 153 Mobile Apps

A new banking trojan has been discovered targeting Android users, with the capabilities to spy on 153 mobile apps from various banks, cryptocurrencies and exchanges. Researchers describe the banking trojan, called Ghimob, as a “full-fledged spy in your pocket” that can be accessed remotely by its...

New Kimsuky Module Makes North Korean Spyware More Powerful

A week after the US government issued an advisory about a "global intelligence gathering mission" operated by North Korean state-sponsored hackers, new findings have emerged about the threat group's spyware capabilities. The APT — dubbed "Kimsuky" aka Black Banshee or Thallium and believed to be...

Lemon Duck Cryptocurrency-Mining Botnet Activity Spikes

Researchers are warning of a recent dramatic uptick in the activity of the Lemon Duck cryptocurrency-mining botnet, which targets victims’ computer resources to mine the Monero virtual currency. Click to Register! Researchers warn that Lemon Duck is “one of the more complex” mining botnets, with...