WordPress Sites Abused in Aggah Spear-Phishing Campaign

Threat actors are using compromised WordPress websites to target manufacturers across Asia with a new spear-phishing campaign that delivers the Warzone RAT, a commodity infostealer available widely for purchase on criminal forums, researchers have found. The threat group Aggah, believed to be...

Experts Believe Chinese Hackers Are Behind Several Attacks Targeting Israel

A Chinese cyber espionage group has been linked to a string of intrusion activities targeting Israeli government institutions, IT providers, and telecommunications companies at least since 2019, with the hackers masquerading themselves as Iranian actors to mislead forensic analysis. FireEye's...

Android Malware ‘FlyTrap’ Hijacks Facebook Accounts

Researchers have uncovered a new Android trojan, dubbed FlyTrap, that’s spread to more than 10,000 victims via rigged apps on third-party app stores, sideloaded apps and hijacked Facebook accounts. In a report posted on Monday, Zimperium’s zLabs mobile threat research teams wrote that FlyTrap has...

Pulse Secure VPNs Get New Urgent Update for Poorly Patched Critical Flaw

Pulse Secure has shipped a fix for a critical post-authentication remote code execution RCE vulnerability in its Connect Secure virtual private network VPN appliances to address an incomplete patch for an actively exploited flaw it previously resolved in October 2020. "The Pulse Connect Secure...

Defending Against Malicious Cyber Activity Originating from Tor

Summary This advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge ATT &CK® and Pre-ATT&CK framework. See the ATT&CK for Enterprise and Pre-ATT&CK frameworks for referenced threat actor techniques. This advisory—written by the Cybersecurity Security and Infrastructure...

NSA Releases Guidance on Securing Wireless Devices While in Public

The National Security Agency NSA has released an information sheet with guidance on securing wireless devices while in public for National Security System, Department of Defense, and Defense Industrial Base teleworkers, as well as the general public. This information sheet provides information on...

This Week in Security News - July 30, 2021

Threat Actors Exploit Apache Hadoop YARN and BlackMatter Ransomware Claims to Be Best of REvil, Darkside...

Attack AI systems in Machine Learning Evasion Competition

Today, we are launching MLSEC.IO, an educational Machine Learning Security Evasion Competition MLSEC for the AI and security communities to exercise their muscle to attack critical AI systems in a realistic setting. Hosted and sponsored by Microsoft, alongside NVIDIA, CUJO AI, VM-Ray, and MRG...

Top 30 Critical Security Vulnerabilities Most Exploited by Hackers

Intelligence agencies in Australia, the U.K., and the U.S. issued a joint advisory on Wednesday detailing the most exploited vulnerabilities in 2020 and 2021, once again demonstrating how threat actors are able to swiftly weaponize publicly disclosed flaws to their advantage. "Cyber actors contin...

CISA Alert: Top Routinely Exploited Vulnerabilities

On July 28, 2021, the U.S. Cybersecurity and Infrastructure Security Agency CISA released a cybersecurity advisory detailing the top 30 publicly known vulnerabilities that have been routinely exploited by cyber threat actors in 2020 and 2021. Organizations are advised to prioritize and apply...

Top Routinely Exploited Vulnerabilities

CISA, the Australian Cyber Security Centre ACSC, the United Kingdom’s National Cyber Security Centre NCSC, and the U.S. Federal Bureau of Investigation FBI have released the Joint Cybersecurity Advisory Top Routinely Exploited Vulnerabilities, which details the top vulnerabilities routinely...

Threat Actors Exploit Misconfigured Apache Hadoop YARN

We look into how threat actors are exploiting Apache Hadoop YARN, a part of the Hadoop framework that is responsible for executing tasks on the cluster. This analysis covers the payloads deployed, the tactics used in the attacks, and basic recommendations for strengthening cloud security...

IoT Piranhas Are Swarming Industrial Controls

Full transparency: Curtis Simpson, CISO at Armis, the enterprise IoT security company, was fundamentally a black hat at the age of 12, before he even knew what a black hat was. One day he got flooded over IRC and was fascinated: What just happened? And how did it happen? He’s since spent the vast...

CNA legal filings lift the curtain on a Phoenix CryptoLocker ransomware attack

Two months after fully restoring its systems, CNA Financial, the leading US insurance company that was attacked by a group using Phoenix CryptoLocker ransomware, issued a legal notice of an information security incident to the Consumer Protection Bureau in New Hampshire. You may recall that Phoen...

ICS Focused Malware

Updated July 20, 2021: The U.S. Government attributes this activity to Russian nation-state cyber actors and assess that Russian nation-state cyber actors deployed Havex malware against industrial control systems. For more information on Russian malicious cyber activity, refer...

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...

U.S. Government Releases Indictment and Several Advisories Detailing Chinese Cyber Threat Activity

CISA, the Federal Bureau of Investigation FBI, and the National Security Agency NSA have observed increasingly sophisticated Chinese state-sponsored activity targeting U.S. political, economic, military, educational, and critical infrastructure personnel and organizations. In response: The White...

Top CVEs Trending with Cybercriminals

Criminal small talk in underground forums offer critical clues about which known Common Vulnerabilities and Exposures CVEs threat actors are most focused on. This, in turn, offers defenders clues on what to watch out for. An analysis of such chatter, by Cognyte, examined 15 cybercrime forums...

SonicWall Warns Firewall Hardware Bugs Under Attack

Security vendor SonicWall is warning customers to patch its enterprise firewall hardware to thwart an “imminent ransomware campaign using stolen credentials” that’s exploiting security holes in current models and those running legacy firmware. Targeted are the company’s Secure Mobile Access SMA 1...

Protecting customers from a private-sector offensive actor using 0-day exploits and DevilsTongue malware

The Microsoft Threat Intelligence Center MSTIC alongside the Microsoft Security Response Center MSRC has uncovered a private-sector offensive actor, or PSOA, that we are calling SOURGUM in possession of now-patched, Windows 0-day exploits CVE-2021-31979 and CVE-2021-33771. Private-sector offensiv...