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WARNING: New Unpatched Microsoft Exchange Zero-Day Under Active Exploitation

Security researchers are warning of previously undisclosed flaws in fully patched Microsoft Exchange servers being exploited by malicious actors in real-world attacks to achieve remote code execution on affected systems. That's according to Vietnamese cybersecurity company GTSC, which discovered the shortcomings as part of its security monitoring and incident response efforts in August 2022. The

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Dangerous New Attack Technique Compromising VMware ESXi Hypervisors

China-based threat actor used poisoned vSphere Installation Bundles to deliver multiple backdoors on systems, security vendor says.

qdPM 9.1 Authenticated Shell Upload

A remote code execution vulnerability exists in qdPM versions 9.1 and below. An attacker can upload a malicious PHP code file via the profile photo functionality by leveraging a path traversal vulnerability in the users['photop_preview'] delete photo feature thus allowing bypass of .htaccess protection. NOTE: this issue exists because of an incomplete fix for CVE-2015-3884.

Espionage Group Wields Steganographic Backdoor Against Govs, Stock Exchange

APT group Witchetty (aka LookingFrog) has exploited the ProxyShell and ProxyLogon vulnerabilities to gain initial access and deploy new custom cyber tools against government agencies and a stock exchange.

Brazilian Prilex Hackers Resurfaced With Sophisticated Point-of-Sale Malware

A Brazilian threat actor known as Prilex has resurfaced after a year-long operational hiatus with an advanced and complex malware to steal money by means of fraudulent transactions. "The Prilex group has shown a high level of knowledge about credit and debit card transactions, and how software used for payment processing works," Kaspersky researchers said. "This enables the attackers to keep

Mystery Hackers Are ‘Hyperjacking’ Targets for Insidious Spying

For decades, security researchers warned about techniques for hijacking virtualization software. Now one group has put them into practice.

Sophisticated Covert Cyberattack Campaign Targets Military Contractors

Malware used in the STEEP#MAVERICK campaign features rarely seen obfuscation, anti-analysis, and evasion capabilities.

Container Supply Chain Attacks Cash In on Cryptojacking

Cloud-native threats are costing cloud customer victims money as cryptojackers mine their vulnerable cloud instances.

Hackers Using PowerPoint Mouseover Trick to Infect System with Malware

The Russian state-sponsored threat actor known as APT28 has been found leveraging a new code execution method that makes use of mouse movement in decoy Microsoft PowerPoint documents to deploy malware. The technique "is designed to be triggered when the user starts the presentation mode and moves the mouse," cybersecurity firm Cluster25 said in a technical report. "The code execution runs a