Technology

WARNING: Microsoft Exchange Under Attack With ProxyShell Flaws

The U.S. Cybersecurity and Infrastructure Security Agency is warning of active exploitation attempts that leverage the latest line of “ProxyShell” Microsoft Exchange vulnerabilities that were patched earlier this May, including deploying LockFile ransomware on compromised systems. Tracked as CVE-2021-34473, CVE-2021-34523, and CVE-2021-31207, the vulnerabilities enable adversaries to bypass ACL

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Cloudflare mitigated one of the largest DDoS attack involving 17.2 million rps

Web infrastructure and website security company Cloudflare on Thursday disclosed that it mitigated the largest ever volumetric distributed denial of service (DDoS) attack recorded to date. The attack, launched via a Mirai botnet, is said to have targeted an unnamed customer in the financial industry last month. “Within seconds, the botnet bombarded the Cloudflare edge

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ShadowPad Malware is Becoming a Favorite Choice of Chinese Espionage Groups

ShadowPad, an infamous Windows backdoor that allows attackers to download further malicious modules or steal data, has been put to use by five different Chinese threat clusters since 2017. “The adoption of ShadowPad significantly reduces the costs of development and maintenance for threat actors,” SentinelOne researchers Yi-Jhen Hsieh and Joey Chen said in a detailed overview of

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Cybercrime Group Asking Insiders for Help in Planting Ransomware

A Nigerian threat actor has been observed attempting to recruit employees by offering them to pay $1 million in bitcoins to deploy Black Kingdom ransomware on companies’ networks as part of an insider threat scheme. “The sender tells the employee that if they’re able to deploy ransomware on a company computer or Windows server, then

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Mozi IoT Botnet Now Also Targets Netgear, Huawei, and ZTE Network Gateways

Mozi, a peer-to-peer (P2P) botnet known to target IoT devices, has gained new capabilities that allow it to achieve persistence on network gateways manufactured by Netgear, Huawei, and ZTE, according to new findings. “Network gateways are a particularly juicy target for adversaries because they are ideal as initial access points to corporate networks,” researchers at

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Critical Flaw Found in Older Cisco Small Business Routers Won’t Be Fixed

A critical vulnerability in Cisco Small Business Routers will not be patched by the networking equipment giant, since the devices reached end-of-life in 2019. Tracked as CVE-2021-34730 (CVSS score: 9.8), the issue resides in the routers’ Universal Plug-and-Play (UPnP) service, enabling an unauthenticated, remote attacker to execute arbitrary code or cause an affected device to

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Researchers Find New Evidence Linking Diavol Ransomware to TrickBot Gang

Cybersecurity researchers have disclosed details about an early development version of a nascent ransomware strain called Diavol that has been linked to threat actors behind the infamous TrickBot syndicate. The latest findings from IBM X-Force show that the ransomware sample shares similarities to other malware that has been attributed to the cybercrime gang, thus establishing a clearer

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BadAlloc Flaw Affects BlackBerry QNX Used in Millions of Cars and Medical Devices

A major vulnerability affecting older versions of BlackBerry’s QNX Real-Time Operating System (RTOS) could allow malicious actors to cripple and gain control of a variety of products, including cars, medical, and industrial equipment. The shortcoming (CVE-2021-22156, CVSS score: 9.0) is part of a broader collection of flaws, collectively dubbed BadAlloc, that was originally disclosed by

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Critical ThroughTek SDK Bug Could Let Attackers Spy On Millions of IoT Devices

A security vulnerability has been found affecting several versions of ThroughTek Kalay P2P Software Development Kit (SDK), which could be abused by a remote attacker to take control of an affected device and potentially lead to remote code execution. Tracked as CVE-2021-28372 (CVSS score: 9.6) and discovered by FireEye Mandiant in late 2020, the weakness concerns an

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