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Massive Ad Fraud Scheme Targeted Over 11 Million Devices with 1,700 Spoofed Apps

Massive Ad Fraud Scheme Targeted Over 11 Million Devices with 1,700 Spoofed Apps

Jan 23, 2023 Mobile Security / Malvertising
Researchers have shut down an "expansive" ad fraud scheme that spoofed more than 1,700 applications from 120 publishers and impacted roughly 11 million devices.  "VASTFLUX was a malvertising attack that injected malicious JavaScript code into digital ad creatives, allowing the fraudsters to stack numerous invisible video ad players behind one another and register ad views," fraud prevention firm HUMAN  said . The operation gets its name from the use of a DNS evasion technique called  Fast Flux  and  VAST , a Digital Video Ad Serving Template that's employed to serve ads to video players. The sophisticated operation particularly exploited the restricted in-app environments that run ads on iOS to place bids for displaying ad banners. Should the auction be won, the hijacked ad slot is leveraged to inject rogue JavaScript that establishes contact with a remote server to retrieve the list of apps to be targeted. This includes the  bundle IDs  that belong to leg
Roaming Mantis Spreading Mobile Malware That Hijacks Wi-Fi Routers' DNS Settings

Roaming Mantis Spreading Mobile Malware That Hijacks Wi-Fi Routers' DNS Settings

Jan 20, 2023 Network Security / Mobile Hacking
Threat actors associated with the Roaming Mantis attack campaign have been observed delivering an updated variant of their patent mobile malware known as Wroba to infiltrate Wi-Fi routers and undertake Domain Name System ( DNS ) hijacking. Kaspersky, which carried out an  analysis  of the malicious artifact, said the feature is designed to target specific Wi-Fi routers located in South Korea. Roaming Mantis, also known as Shaoye, is a long-running financially motivated operation that singles out Android smartphone users with malware capable of stealing bank account credentials as well as harvesting other kinds of sensitive information. Although primarily  targeting the Asian region  since 2018, the hacking crew was detected  expanding  its  victim range  to include France and Germany for the first time in early 2022 by camouflaging the malware as the Google Chrome web browser application. The attacks leverage smishing messages as the initial intrusion vector of choice to deliver
Gamaredon Group Launches Cyberattacks Against Ukraine Using Telegram

Gamaredon Group Launches Cyberattacks Against Ukraine Using Telegram

Jan 20, 2023 Cyber War / Cyber Attack
The Russian state-sponsored cyber espionage group known as Gamaredon has continued its digital onslaught against Ukraine, with recent attacks leveraging the popular messaging app Telegram to strike military and law enforcement sectors in the country. "The Gamaredon group's network infrastructure relies on multi-stage Telegram accounts for victim profiling and confirmation of geographic location, and then finally leads the victim to the next stage server for the final payload," the BlackBerry Research and Intelligence Team  said  in a report shared with The Hacker News. "This kind of technique to infect target systems is new." Gamaredon , also known by names such as Actinium, Armageddon, Iron Tilden, Primitive Bear, Shuckworm, Trident Ursa, and Winterflounder, is known for its assaults aimed at Ukrainian entities since at least 2013. Last month, Palo Alto Networks Unit 42  disclosed  the threat actor's unsuccessful attempts to break into an unnamed petrol
WhatsApp Hit with €5.5 Million Fine for Violating Data Protection Laws

WhatsApp Hit with €5.5 Million Fine for Violating Data Protection Laws

Jan 20, 2023 Data Protection / Privacy
The Irish Data Protection Commission (DPC) on Thursday imposed fresh fines of €5.5 million against Meta's WhatsApp for violating data protection laws when processing users' personal information. At the heart of the ruling is an update to the messaging platform's Terms of Service that was imposed in the days leading to the enforcement of the General Data Protection Regulation ( GDPR ) in May 2018, requiring that users agree to the revised terms in order to continue using the service or risk losing access. The complaint, filed by privacy non-profit NOYB, alleged that WhatsApp breached the regulation by compelling its users to "consent to the processing of their personal data for service improvement and security" by "making the accessibility of its services conditional on users accepting the updated Terms of Service." "WhatsApp Ireland is not entitled to rely on the contract legal basis for the delivery of service improvement and security," th
Chinese Hackers Exploited Recent Fortinet Flaw as 0-Day to Drop Malware

Chinese Hackers Exploited Recent Fortinet Flaw as 0-Day to Drop Malware

Jan 20, 2023 Firewall / Network Security
A suspected China-nexus threat actor exploited a recently patched vulnerability in Fortinet FortiOS SSL-VPN as a zero-day in attacks targeting a European government entity and a managed service provider (MSP) located in Africa. Telemetry evidence gathered by Google-owned Mandiant indicates that the exploitation occurred as early as October 2022, at least nearly two months before fixes were released. "This incident continues China's pattern of exploiting internet facing devices, specifically those used for managed security purposes (e.g., firewalls, IPS\IDS appliances etc.)," Mandiant researchers  said  in a technical report. The attacks entailed the use of a sophisticated backdoor dubbed  BOLDMOVE , a Linux variant of which is specifically designed to run on Fortinet's FortiGate firewalls. The intrusion vector in question relates to the exploitation of  CVE-2022-42475 , a heap-based buffer overflow vulnerability in FortiOS SSL-VPN that could result in unauthenti
New Microsoft Azure Vulnerability Uncovered — EmojiDeploy for RCE Attacks

New Microsoft Azure Vulnerability Uncovered — EmojiDeploy for RCE Attacks

Jan 19, 2023 Cloud Security / Data Security
A new critical remote code execution (RCE) flaw discovered impacting multiple services related to Microsoft Azure could be exploited by a malicious actor to completely take control of a targeted application. "The vulnerability is achieved through  CSRF  (cross-site request forgery) on the ubiquitous SCM service Kudu," Ermetic researcher Liv Matan  said  in a report shared with The Hacker News. "By abusing the vulnerability, attackers can deploy malicious ZIP files containing a payload to the victim's Azure application." The Israeli cloud infrastructure security firm, which dubbed the shortcoming  EmojiDeploy , said it could further enable the theft of sensitive data and lateral movement to other Azure services. Microsoft has since fixed the vulnerability as of December 6, 2022, following responsible disclosure on October 26, 2022, in addition to awarding a bug bounty of $30,000. The Windows maker  describes  Kudu as the "engine behind a number of feat
Android Users Beware: New Hook Malware with RAT Capabilities Emerges

Android Users Beware: New Hook Malware with RAT Capabilities Emerges

Jan 19, 2023 Mobile Security / Android
The threat actor behind the  BlackRock  and  ERMAC  Android banking trojans has unleashed yet another malware for rent called  Hook  that introduces new capabilities to access files stored in the devices and create a remote interactive session. ThreatFabric, in a  report  shared with The Hacker News, characterized Hook as a novel ERMAC fork that's advertised for sale for $7,000 per month while featuring "all the capabilities of its predecessor." "In addition, it also adds to its arsenal Remote Access Tooling (RAT) capabilities, joining the ranks of families such as  Octo  and  Hydra , which are capable performing a full Device Take Over (DTO), and complete a full fraud chain, from PII exfiltration to transaction, with all the intermediate steps, without the need of additional channels," the Dutch cybersecurity firm said. A majority of the financial apps targeted by the malware are located in the U.S., Spain, Australia, Poland, Canada, Turkey, the U.K., Fran
New Research Delves into the World of Malicious LNK Files and Hackers Behind Them

New Research Delves into the World of Malicious LNK Files and Hackers Behind Them

Jan 19, 2023 Threat Intelligence / Malware
Cybercriminals are increasingly leveraging malicious LNK files as an initial access method to download and execute payloads such as Bumblebee, IcedID, and Qakbot. A recent study by cybersecurity experts has shown that it is possible to identify relationships between different threat actors by analyzing the metadata of malicious LNK files, uncovering information such as the specific tools and techniques used by different groups of cybercriminals, as well as potential links between seemingly unrelated attacks. "With the increasing usage of LNK files in attack chains, it's logical that threat actors have started developing and using tools to create such files," Cisco Talos researcher Guilherme Venere said in a report shared with The Hacker News. This comprises tools like  NativeOne 's  mLNK Builder  and  Quantum Builder , which allow subscribers to generate rogue shortcut files and evade security solutions. Some of the major malware families that have used LNK file
6 Types of Risk Assessment Methodologies + How to Choose

6 Types of Risk Assessment Methodologies + How to Choose

Jan 19, 2023 Risk Assessment
An organization's sensitive information is under constant threat. Identifying those security risks is critical to protecting that information. But some risks are bigger than others. Some mitigation options are more expensive than others. How do you make the right decision? Adopting a formal  risk assessment  process gives you the information you need to set priorities. There are many ways to perform a risk assessment, each with its own benefits and drawbacks. We will help you find which of these six risk assessment methodologies works best for your organization. What is Risk Assessment? Risk assessment is the way organizations decide what to do in the face of today's complex security landscape. Threats and vulnerabilities are everywhere. They could come from an external actor or a careless user. They may even be built into the network infrastructure. Decision-makers need to understand the urgency of the organization's risks as well as how much mitigation efforts will cost. Risk as
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