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Microsoft on Monday revealed that its Azure cloud platform mitigated a 2.4 Tbps distributed denial-of-service (DDoS) attack in the last week of August targeting an unnamed customer in Europe, surpassing a  2.3 Tbps attack  stopped by Amazon Web Services in February 2020. "This is 140 percent higher than  2020's 1 Tbps attack  and higher than any network volumetric event previously detected on Azure," Amir Dahan, senior program manager for Azure Networking,  said  in a post, calling it a " UDP reflection " lasting for about 10 minutes. Reflected amplification attacks are a type of denial of service attacks wherein a threat actor takes advantage of the connectionless nature of UDP protocol with spoofed requests so as to overwhelm a target server or network with a flood of packets, causing disruption or rendering the server and its surrounding infrastructure unavailable. The attack is said to have originated from a botnet of approximately 70,000 compromi...

An emerging threat actor likely supporting Iranian national interests has been behind a password spraying campaign targeting U.S., E.U., and Israeli defense technology companies, with additional activity observed against regional ports of entry in the Persian Gulf as well as maritime and cargo transportation companies focused in the Middle East. Microsoft is tracking the hacking crew under the moniker DEV-0343 . The intrusions, which were first observed in late July 2021, are believed to have targeted more than 250 Office 365 tenants, fewer than 20 of which were successfully compromised following a  password spray  attack — a type of brute force attack wherein the same password is cycled against different usernames to log into an application or a network in an effort to avoid account lockouts. Indications thus far allude to the possibility that the activity is part of an intellectual property theft campaign aimed at government partners producing military-grade radars, dro...

Ukrainian law enforcement authorities on Monday disclosed the arrest of a hacker responsible for the creation and management of a "powerful botnet" consisting of over 100,000 enslaved devices that was used to carry out distributed denial-of-service (DDoS) and spam attacks on behalf of paid customers. The unnamed individual, from the Ivano-Frankivsk region of the country, is also said to have leveraged the automated network to detect vulnerabilities in websites and break into them as well as stage brute-force attacks in order to guess email passwords. The Ukrainian police agency said it conducted a raid of the suspect's residence and seized their computer equipment as evidence of illegal activity. "He looked for customers on the closed forums and Telegram chats and payments were made via blocked electronic payment systems," the Security Service of Ukraine (SSU)  said  in a press statement. The payments were facilitated via WebMoney, a Russian money transfer p...

Apple on Monday released a security update for iOS and iPad to address a critical vulnerability that it says is being exploited in the wild, making it the 17th zero-day flaw the company has addressed in its products since the start of the year. The weakness, assigned the identifier  CVE-2021-30883 , concerns a memory corruption issue in the "IOMobileFrameBuffer" component that could allow an application to execute arbitrary code with kernel privileges. Crediting an anonymous researcher for reporting the vulnerability, Apple said it's "aware of a report that this issue may have been actively exploited." Technical specifics about the flaw and the nature of the attacks remain unavailable as yet, as is the identity of the threat actor, so as to allow a majority of the users to apply the patch and prevent other adversaries from weaponizing the vulnerability. The iPhone maker said it addressed the issue with improved memory handling. But soon after the advisory w...

Although organizations commonly go to great lengths to address security vulnerabilities that may exist within their IT infrastructure, an organization's helpdesk might pose a bigger threat due to social engineering attacks. Social engineering is "the art of manipulating people so they give up confidential information," according to  Webroot . There are many different types of social engineering schemes but one is area of vulnerability is how social engineering might be used against a helpdesk technician to steal a user's credentials. The Process of Gaining Access With Social Engineering The first step in such an attack is usually for the attacker to gather information about the organization that they are targeting. The attacker might start by using information that is freely available on the Internet to figure out who within the organization is most likely to have elevated permissions or access to sensitive information. An attacker can often get this information ...