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顯示從 7月, 2023 起發佈的文章

Cybercriminals Renting WikiLoader to Target Italian Organizations with Banking Trojan

Organizations in Italy are the target of a new phishing campaign that leverages a new strain of malware called WikiLoader with an ultimate aim to install a banking trojan, stealer, and spyware called Ursnif (aka Gozi). "It is a sophisticated downloader with the objective of installing a second malware payload," Proofpoint said in a technical report. "The malware uses multiple mechanisms to evade Posted from: Click here for the full article .

New P2PInfect Worm Targets Redis Servers with Undocumented Breach Methods

The P2PInfect peer-to-peer (P2) worm has been observed employing previously undocumented initial access methods to breach susceptible Redis servers and rope them into a botnet. "The malware compromises exposed instances of the Redis data store by exploiting the replication feature," Cado Security researchers Nate Bill and Matt Muir said in a report shared with The Hacker News. "A common attack Posted from: Click here for the full article .

AVRecon Botnet Leveraging Compromised Routers to Fuel Illegal Proxy Service

More details have emerged about a botnet called AVRecon, which has been observed making use of compromised small office/home office (SOHO) routers as part of a multi-year campaign active since at least May 2021. AVRecon was first disclosed by Lumen Black Lotus Labs earlier this month as malware capable of executing additional commands and stealing victim's bandwidth for what appears to be an Posted from: Click here for the full article .

New Android Malware CherryBlos Utilizing OCR to Steal Sensitive Data

A new Android malware strain called CherryBlos has been observed making use of optical character recognition (OCR) techniques to gather sensitive data stored in pictures. CherryBlos, per Trend Micro, is distributed via bogus posts on social media platforms and comes with capabilities to steal cryptocurrency wallet-related credentials and act as a clipper to substitute wallet addresses when a Posted from: Click here for the full article .

Ivanti Warns of Another Endpoint Manager Mobile Vulnerability Under Active Attack

Ivanti has disclosed yet another security flaw impacting Endpoint Manager Mobile (EPMM), formerly known as MobileIron Core, that it said has been weaponized as part of an exploit chain by malicious actors in the wild. The new vulnerability, tracked as CVE-2023-35081 (CVSS score: 7.8), impacts supported versions 11.10, 11.9, and 11.8, as well as those that are currently end-of-life (EoL). " Posted from: Click here for the full article .

IcedID Malware Adapts and Expands Threat with Updated BackConnect Module

The threat actors linked to the malware loader known as IcedID have made updates to the BackConnect (BC) module that's used for post-compromise activity on hacked systems, new findings from Team Cymru reveal. IcedID, also called BokBot, is a strain of malware similar to Emotet and QakBot that started off as a banking trojan in 2017, before switching to the role of an initial access facilitator Posted from: Click here for the full article .

STARK#MULE Targets Koreans with U.S. Military-themed Document Lures

An ongoing cyber attack campaign has set its sights on Korean-speaking individuals by employing U.S. Military-themed document lures to trick them into running malware on compromised systems. Cybersecurity firm Securonix is tracking the activity under the name STARK#MULE. "Based on the source and likely targets, these types of attacks are on par with past attacks stemming from typical North Posted from: Click here for the full article .

A Data Exfiltration Attack Scenario: The Porsche Experience

As part of Checkmarx's mission to help organizations develop and deploy secure software, the Security Research team started looking at the security posture of major car manufacturers. Porsche has a well-established Vulnerability Reporting Policy (Disclosure Policy)[1], it was considered in scope for our research, so we decided to start there, and see what we could find. What we found is an Posted from: Click here for the full article .

Major Security Flaw Discovered in Metabase BI Software – Urgent Update Required

Users of Metabase, a popular business intelligence and data visualization software package, are being advised to update to the latest version following the discovery of an "extremely severe" flaw that could result in pre-authenticated remote code execution on affected installations. Tracked as CVE-2023-38646, the issue impacts open-source editions prior to 0.46.6.1 and Metabase Enterprise Posted from: Click here for the full article .

The 4 Keys to Building Cloud Security Programs That Can Actually Shift Left

As cloud applications are built, tested and updated, they wind their way through an ever-complex series of different tools and teams. Across hundreds or even thousands of technologies that make up the patchwork quilt of development and cloud environments, security processes are all too often applied in only the final phases of software development.  Placing security at the very end of the Posted from: Click here for the full article .

Hackers Target Apache Tomcat Servers for Mirai Botnet and Crypto Mining

Misconfigured and poorly secured Apache Tomcat servers are being targeted as part of a new campaign designed to deliver the Mirai botnet malware and cryptocurrency miners. The findings come courtesy of Aqua, which detected more than 800 attacks against its Tomcat server honeypots over a two-year time period, with 96% of the attacks linked to the Mirai botnet. Of these attack attempts, 20% (or Posted from: Click here for the full article .

New SEC Rules Require U.S. Companies to Reveal Cyber Attacks Within 4 Days

The U.S. Securities and Exchange Commission (SEC) on Wednesday approved new rules that require publicly traded companies to publicize details of a cyber attack within four days of identifying that it has a "material" impact on their finances, marking a major shift in how computer breaches are disclosed. "Whether a company loses a factory in a fire — or millions of files in a cybersecurity Posted from: Click here for the full article .

Decoy Dog: New Breed of Malware Posing Serious Threats to Enterprise Networks

A deeper analysis of a recently discovered malware called Decoy Dog has revealed that it's a significant upgrade over the Pupy RAT, an open-source remote access trojan it's modeled on. "Decoy Dog has a full suite of powerful, previously unknown capabilities – including the ability to move victims to another controller, allowing them to maintain communication with compromised machines and remain Posted from: Click here for the full article .

The Alarming Rise of Infostealers: How to Detect this Silent Threat

A new study conducted by Uptycs has uncovered a stark increase in the distribution of information stealing (a.k.a. infostealer or stealer) malware. Incidents have more than doubled in Q1 2023, indicating an alarming trend that threatens global organizations. According to the new Uptycs' whitepaper, Stealers are Organization Killers, a variety of new info stealers have emerged this year, preying Posted from: Click here for the full article .

Rust-based Realst Infostealer Targeting Apple macOS Users' Cryptocurrency Wallets

A new malware family called Realst has become the latest to target Apple macOS systems, with a third of the samples already designed to infect macOS 14 Sonoma, the upcoming major release of the operating system. Written in the Rust programming language, the malware is distributed in the form of bogus blockchain games and is capable of "emptying crypto wallets and stealing stored password and Posted from: Click here for the full article .

Casbaneiro Banking Malware Goes Under the Radar with UAC Bypass Technique

The financially motivated threat actors behind the Casbaneiro banking malware family have been observed making use of a User Account Control (UAC) bypass technique to gain full administrative privileges on a machine, a sign that the threat actor is evolving their tactics to avoid detection and execute malicious code on compromised assets. "They are still heavily focused on Latin American Posted from: Click here for the full article .

Zenbleed: New Flaw in AMD Zen 2 Processors Puts Encryption Keys and Passwords at Risk

A new security vulnerability has been discovered in AMD's Zen 2 architecture-based processors that could be exploited to extract sensitive data such as encryption keys and passwords. Discovered by Google Project Zero researcher Tavis Ormandy, the flaw – codenamed Zenbleed and tracked as CVE-2023-20593 (CVSS score: 6.5) – allows data exfiltration at the rate of 30 kb per core, per second. The Posted from: Click here for the full article .

macOS Under Attack: Examining the Growing Threat and User Perspectives

As the number of people using macOS keeps going up, so does the desire of hackers to take advantage of flaws in Apple's operating system.  What Are the Rising Threats to macOS? There is a common misconception among macOS fans that Apple devices are immune to hacking and malware infection. However, users have been facing more and more dangers recently. Inventive attackers are specifically Posted from: Click here for the full article .

How MDR Helps Solve the Cybersecurity Talent Gap

How do you overcome today's talent gap in cybersecurity? This is a crucial issue — particularly when you find executive leadership or the board asking pointed questions about your security team's ability to defend the organization against new and current threats. This is why many security leaders find themselves turning to managed security services like MDR (managed detection and response), Posted from: Click here for the full article .

Ivanti Releases Urgent Patch for EPMM Zero-Day Vulnerability Under Active Exploitation

Ivanti is warning users to update their Endpoint Manager Mobile (EPMM) mobile device management software (formerly MobileIron Core) to the latest version that fixes an actively exploited zero-day vulnerability. Dubbed CVE-2023-35078, the issue has been described as a remote unauthenticated API access vulnerability that impacts currently supported version 11.4 releases 11.10, 11.9, and 11.8 as Posted from: Click here for the full article .

Critical Zero-Days in Atera Windows Installers Expose Users to Privilege Escalation Attacks

Zero-day vulnerabilities in Windows Installers for the Atera remote monitoring and management software could act as a springboard to launch privilege escalation attacks. The flaws, discovered by Mandiant on February 28, 2023, have been assigned the identifiers CVE-2023-26077 and CVE-2023-26078, with the issues remediated in versions 1.8.3.7 and 1.8.4.9 released by Atera on April 17, 2023, and Posted from: Click here for the full article .

New OpenSSH Vulnerability Exposes Linux Systems to Remote Command Injection

Details have emerged about a now-patched flaw in OpenSSH that could be potentially exploited to run arbitrary commands remotely on compromised hosts under specific conditions. "This vulnerability allows a remote attacker to potentially execute arbitrary commands on vulnerable OpenSSH's forwarded ssh-agent," Saeed Abbasi, manager of vulnerability research at Qualys, said in an analysis last week. Posted from: Click here for the full article .

Banking Sector Targeted in Open-Source Software Supply Chain Attacks

Cybersecurity researchers said they have discovered what they say is the first open-source software supply chain attacks specifically targeting the banking sector. "These attacks showcased advanced techniques, including targeting specific components in web assets of the victim bank by attaching malicious functionalities to it," Checkmarx said in a report published last week. "The attackers Posted from: Click here for the full article .

HotRat: New Variant of AsyncRAT Malware Spreading Through Pirated Software

A new variant of AsyncRAT malware dubbed HotRat is being distributed via free, pirated versions of popular software and utilities such as video games, image and sound editing software, and Microsoft Office. "HotRat malware equips attackers with a wide array of capabilities, such as stealing login credentials, cryptocurrency wallets, screen capturing, keylogging, installing more malware, and Posted from: Click here for the full article .

Sophisticated BundleBot Malware Disguised as Google AI Chatbot and Utilities

A new malware strain known as BundleBot has been stealthily operating under the radar by taking advantage of .NET single-file deployment techniques, enabling threat actors to capture sensitive information from compromised hosts. "BundleBot is abusing the dotnet bundle (single-file), self-contained format that results in very low or no static detection at all," Check Point said in a report Posted from: Click here for the full article .

DDoS Botnets Hijacking Zyxel Devices to Launch Devastating Attacks

Several distributed denial-of-service (DDoS) botnets have been observed exploiting a critical flaw in Zyxel devices that came to light in April 2023 to gain remote control of vulnerable systems. "Through the capture of exploit traffic, the attacker's IP address was identified, and it was determined that the attacks were occurring in multiple regions, including Central America, North America, Posted from: Click here for the full article .

Citrix NetScaler ADC and Gateway Devices Under Attack: CISA Urges Immediate Action

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued an advisory on Thursday warning that the newly disclosed critical security flaw in Citrix NetScaler Application Delivery Controller (ADC) and Gateway devices is being abused to drop web shells on vulnerable systems. "In June 2023, threat actors exploited this vulnerability as a zero-day to drop a web shell on a critical Posted from: Click here for the full article .

Apache OpenMeetings Web Conferencing Tool Exposed to Critical Vulnerabilities

Multiple security flaws have been disclosed in Apache OpenMeetings, a web conferencing solution, that could be potentially exploited by malicious actors to seize control of admin accounts and run malicious code on susceptible servers. "Attackers can bring the application into an unexpected state, which allows them to take over any user account, including the admin account," Sonar vulnerability Posted from: Click here for the full article .

Microsoft Expands Cloud Logging to Counter Rising Nation-State Cyber Threats

Microsoft on Wednesday announced that it's expanding cloud logging capabilities to help organizations investigate cybersecurity incidents and gain more visibility after facing criticism in the wake of a recent espionage attack campaign aimed at its email infrastructure. The tech giant said it's making the change in direct response to increasing frequency and evolution of nation-state cyber Posted from: Click here for the full article .

Chinese APT41 Hackers Target Mobile Devices with New WyrmSpy and DragonEgg Spyware

The prolific China-linked nation-state actor known as APT41 has been linked to two previously undocumented strains of Android spyware called WyrmSpy and DragonEgg. "Known for its exploitation of web-facing applications and infiltration of traditional endpoint devices, an established threat actor like APT 41 including mobile in its arsenal of malware shows how mobile endpoints are high-value Posted from: Click here for the full article .

Bad.Build Flaw in Google Cloud Build Raises Concerns of Privilege Escalation

Cybersecurity researchers have uncovered a privilege escalation vulnerability in Google Cloud that could enable malicious actors tamper with application images and infect users, leading to supply chain attacks. The issue, dubbed Bad.Build, is rooted in the Google Cloud Build service, according to cloud security firm Orca, which discovered and reported the issue. "By abusing the flaw and enabling Posted from: Click here for the full article .

Go Beyond the Headlines for Deeper Dives into the Cybercriminal Underground

Discover stories about threat actors’ latest tactics, techniques, and procedures from Cybersixgill’s threat experts each month. Each story brings you details on emerging underground threats, the threat actors involved, and how you can take action to mitigate risks. Learn about the top vulnerabilities and review the latest ransomware and malware trends from the deep and dark web. Stolen ChatGPT Posted from: Click here for the full article .

Cybercriminals Exploit Microsoft Word Vulnerabilities to Deploy LokiBot Malware

Microsoft Word documents exploiting known remote code execution flaws are being used as phishing lures to drop malware called LokiBot on compromised systems. "LokiBot, also known as Loki PWS, has been a well-known information-stealing Trojan active since 2015," Fortinet FortiGuard Labs researcher Cara Lin said. "It primarily targets Windows systems and aims to gather sensitive information from Posted from: Click here for the full article .

AIOS WordPress Plugin Faces Backlash for Storing User Passwords in Plain Text

All-In-One Security (AIOS), a WordPress plugin installed on over one million sites, has issued a security update after a bug introduced in version 5.1.9 of the software caused users' passwords being added to the database in plaintext format. "A malicious site administrator (i.e. a user already logged into the site as an admin) could then have read them," UpdraftPlus, the maintainers of AIOS,  Posted from: Click here for the full article .

Zimbra Warns of Critical Zero-Day Flaw in Email Software Amid Active Exploitation

Zimbra has warned of a critical zero-day security flaw in its email software that has come under active exploitation in the wild. "A security vulnerability in Zimbra Collaboration Suite Version 8.8.15 that could potentially impact the confidentiality and integrity of your data has surfaced," the company said in an advisory. It also said that the issue has been addressed and that it's expected to Posted from: Click here for the full article .

New SOHO Router Botnet AVrecon Spreads to 70,000 Devices Across 20 Countries

A new malware strain has been found covertly targeting small office/home office (SOHO) routers for more than two years, infiltrating over 70,000 devices and creating a botnet with 40,000 nodes spanning 20 countries. Lumen Black Lotus Labs has dubbed the malware AVrecon, making it the third such strain to focus on SOHO routers after ZuoRAT and HiatusRAT over the past year. "This makes AVrecon one Posted from: Click here for the full article .

PicassoLoader Malware Used in Ongoing Attacks on Ukraine and Poland

Government entities, military organizations, and civilian users in Ukraine and Poland have been targeted as part of a series of campaigns designed to steal sensitive data and gain persistent remote access to the infected systems. The intrusion set, which stretches from April 2022 to July 2023, leverages phishing lures and decoy documents to deploy a downloader malware called PicassoLoader, which Posted from: Click here for the full article .

Fake PoC for Linux Kernel Vulnerability on GitHub Exposes Researchers to Malware

In a sign that cybersecurity researchers continue to be under the radar of malicious actors, a proof-of-concept (PoC) has been discovered on GitHub, concealing a backdoor with a "crafty" persistence method. "In this instance, the PoC is a wolf in sheep's clothing, harboring malicious intent under the guise of a harmless learning tool," Uptycs researchers Nischay Hegde and Siddartha Malladi said. Posted from: Click here for the full article .

U.S. Government Agencies' Emails Compromised in China-Backed Cyber Attack

An unnamed Federal Civilian Executive Branch (FCEB) agency in the U.S. detected anomalous email activity in mid-June 2023, leading to Microsoft's discovery of a new China-linked espionage campaign targeting two dozen organizations. The details come from a joint cybersecurity advisory released by the U.S. Cybersecurity and Infrastructure Security Agency (CISA) and Federal Bureau of Investigation Posted from: Click here for the full article .

New Vulnerabilities Disclosed in SonicWall and Fortinet Network Security Products

SonicWall on Wednesday urged customers of Global Management System (GMS) firewall management and Analytics network reporting engine software to apply the latest fixes to secure against a set of 15 security flaws that could be exploited by a threat actor to circumvent authentication and access sensitive information. Of the 15 shortcomings (tracked from CVE-2023-34123 through CVE-2023-34137), four Posted from: Click here for the full article .

Microsoft Releases Patches for 130 Vulnerabilities, Including 6 Under Active Attack

Microsoft on Tuesday released updates to address a total of 130 new security flaws spanning its software, including six zero-day flaws that it said have been actively exploited in the wild. Of the 130 vulnerabilities, nine are rated Critical and 121 are rated Important in severity. This is in addition to eight flaws the tech giant patched in its Chromium-based Edge browser towards the end of Posted from: Click here for the full article .

Global Retailers Must Keep an Eye on Their SaaS Stack

Brick-and-mortar retailers and e-commerce sellers may be locked in a fierce battle for market share, but one area both can agree on is the need to secure their SaaS stack. From communications tools to order management and fulfillment systems, much of today's critical retail software lives in SaaS apps in the cloud. Securing those applications is crucial to ongoing operations, chain management, Posted from: Click here for the full article .

Vishing Goes High-Tech: New 'Letscall' Malware Employs Voice Traffic Routing

Researchers have issued a warning about an emerging and advanced form of voice phishing (vishing) known as "Letscall." This technique is currently targeting individuals in South Korea. The criminals behind "Letscall" employ a multi-step attack to deceive victims into downloading malicious apps from a counterfeit Google Play Store website. Once the malicious software is installed, it redirects Posted from: Click here for the full article .

Another Critical Unauthenticated SQLi Flaw Discovered in MOVEit Transfer Software

Progress Software has announced the discovery and patching of a critical SQL injection vulnerability in MOVEit Transfer, popular software used for secure file transfer. In addition, Progress Software has patched two other high-severity vulnerabilities. The identified SQL injection vulnerability, tagged as CVE-2023-36934, could potentially allow unauthenticated attackers to gain unauthorized Posted from: Click here for the full article .

Mastodon Social Network Patches Critical Flaws Allowing Server Takeover

Mastodon, a popular decentralized social network, has released a security update to fix critical vulnerabilities that could expose millions of users to potential attacks. Mastodon is known for its federated model, consisting of thousands of separate servers called "instances," and it has over 14 million users across more than 20,000 instances. The most critical vulnerability, CVE-2023-36460, Posted from: Click here for the full article .

Cybersecurity Agencies Sound Alarm on Rising TrueBot Malware Attacks

Cybersecurity agencies have warned about the emergence of new variants of the TrueBot malware. This enhanced threat is now targeting companies in the U.S. and Canada with the intention of extracting confidential data from infiltrated systems. These sophisticated attacks exploit a critical vulnerability (CVE-2022-31199) in the widely used Netwrix Auditor server and its associated agents. This Posted from: Click here for the full article .

Surviving the 800 Gbps Storm: Gain Insights from Gcore's 2023 DDoS Attack Statistics

Gcore Radar is a quarterly report prepared by Gcore that provides insights into the current state of the DDoS protection market and cybersecurity trends. This report offers you an understanding of the evolving threat landscape and highlights the measures required to protect against attacks effectively. It serves as an insight for businesses and individuals seeking to stay informed about the Posted from: Click here for the full article .

Evasive Meduza Stealer Targets 19 Password Managers and 76 Crypto Wallets

In yet another sign of a lucrative crimeware-as-a-service (CaaS) ecosystem, cybersecurity researchers have discovered a new Windows-based information stealer called Meduza Stealer that's actively being developed by its author to evade detection by software solutions. "The Meduza Stealer has a singular objective: comprehensive data theft," Uptycs said in a new report. "It pilfers users' browsing Posted from: Click here for the full article .