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Twitter , the biggest Social Media platform used for vital communication is now banned in Turkey from the last few days, after Prime Minister Recep Tayyip Erdoğan promised to root out the social media service during an election rally this week with the help of a court order. " Twitter and so on, we will root them out. The international community can say this or that – I don't care. They will see the power of the Turkish Republic ." After the ban imposed on Twitter late on Thursday, millions of Turkey users began using Google's DNS service to bypassing censorship, that briefly helped Turks stay connected to Twitter. Turkey Government is trying to close all the possible loopholes that had allowed users to circumvent the ban and finally today the authorities have also blocked the Google DNS service (8.8.8.8 and 8.8.4.4), However the number of tweets jumped 138% in the last 24 Hours and almost 2.5 million tweets have been posted from the country after the ban imposed...

A critical vulnerability has been discovered in Systemd , the popular init system and service manager for Linux operating systems, that could allow remote attackers to potentially trigger a buffer overflow to execute malicious code on the targeted machines via a DNS response. The vulnerability, designated as CVE-2017-9445 , actually resides in the ' dns_packet_new ' function of 'systemd-resolved,' a DNS response handler component that provides network name resolution to local applications. According to an advisory published Tuesday, a specially crafted malicious DNS response can crash 'systemd-resolved' program remotely when the system tries to lookup for a hostname on an attacker-controlled DNS service. Eventually, large DNS response overflows the buffer, allowing an attacker to overwrite the memory which leads to remote code execution. This means the attackers can remotely run any malware on the targeted system or server via their evil DNS service...

Over a million domains are susceptible to takeover by malicious actors by means of what has been called a Sitting Ducks attack. The powerful attack vector, which exploits weaknesses in the domain name system (DNS), is being exploited by over a dozen Russian-nexus cybercriminal actors to stealthily hijack domains, a joint analysis published by Infoblox and Eclypsium has revealed. "In a Sitting Ducks attack, the actor hijacks a currently registered domain at an authoritative DNS service or web hosting provider without accessing the true owner's account at either the DNS provider or registrar," the researchers said. "Sitting Ducks is easier to perform, more likely to succeed, and harder to detect than other well-publicized domain hijacking attack vectors, such as dangling CNAMEs ." Once a domain has been taken over by the threat actor, it could be used for all kinds of nefarious activities, including serving malware and conducting spams, while abusing the...

Cybercriminals are becoming more adept, innovative, and stealthy with each passing day. They are now adopting more clandestine techniques that come with limitless attack vectors and are harder to detect. A new strain of malware has now been discovered that relies on a unique technique to steal payment card information from point-of-sale (PoS) systems. Since the new POS malware relies upon User Datagram Protocol (UDP) DNS traffic for the exfiltration of credit card information, security researchers at Forcepoint Labs, who have uncovered the malware, dubbed it UDPoS . Yes, UDPoS uses Domain Name System (DNS) queries to exfiltrate stolen data, instead of HTTP that has been used by most POS malware in the past. This malware is also thought to be first of its kind. Besides using 'unusual' DNS requests to exfiltrate data, the UDPoS malware disguises itself as an update from LogMeIn —a legitimate remote desktop control service used to manage computers and other systems remo...

Multiple threat actors have been found taking advantage of an attack technique called Sitting Ducks to hijack legitimate domains for using them in phishing attacks and investment fraud schemes for years. The findings come from Infoblox, which said it identified nearly 800,000 vulnerable registered domains over the past three months, of which approximately 9% (70,000) have been subsequently hijacked. "Cybercriminals have used this vector since 2018 to hijack tens of thousands of domain names," the cybersecurity company said in a deep-dive report shared with The Hacker News. "Victim domains include well-known brands, non-profits, and government entities." The little-known attack vector, although originally documented by security researcher Matthew Bryant way back in 2016, didn't attract a lot of attention until the scale of the hijacks was disclosed earlier this August. "I believe there is more awareness [since then]," Dr. Renee Burton, vice pre...

If your mobile carrier offers LTE, also known as the 4G network, you need to beware as your network communication can be hijacked remotely. A team of researchers has discovered some critical weaknesses in the ubiquitous LTE mobile device standard that could allow sophisticated hackers to spy on users' cellular networks, modify the contents of their communications, and even can re-route them to malicious or phishing websites. LTE, or Long Term Evolution, is the latest mobile telephony standard used by billions of people designed to bring many security improvements over the predecessor standard known as Global System for Mobile (GSM) communications. However, multiple security flaws have been discovered over the past few years, allowing attackers to intercept user's communications, spy on user phone calls and text messages, send fake emergency alerts, spoof location of the device and knock devices entirely offline. 4G LTE Network Vulnerabilities Now, security researchers...

Cybersecurity researchers on Wednesday disclosed 14 vulnerabilities affecting a commonly-used TCP/IP stack used in millions of Operational Technology (OT) devices manufactured by no fewer than 200 vendors and deployed in manufacturing plants, power generation, water treatment, and critical infrastructure sectors. The shortcomings, collectively dubbed "INFRA:HALT," target NicheStack, potentially enabling an attacker to achieve remote code execution, denial of service, information leak, TCP spoofing, and even DNS cache poisoning. NicheStack (aka InterNiche stack) is a closed-source TCP/IP stack for embedded systems that is designed to provide internet connectivity industrial equipment, and is incorporated by major industrial automation vendors like Siemens, Emerson, Honeywell, Mitsubishi Electric, Rockwell Automation, and Schneider Electric in their programmable logic controllers (PLCs) and other products. "Attackers could disrupt a building's HVAC system or take ...

A previously undocumented backdoor has been observed targeting Linux systems with the goal of corralling the machines into a botnet and acting as a conduit for downloading and installing rootkits. Qihoo 360's Netlab security team called it  B1txor20  "based on its propagation using the file name 'b1t,' the XOR encryption algorithm, and the RC4 algorithm key length of 20 bytes." First observed propagating through the  Log4j vulnerability  on February 9, 2022, the malware leverages a technique called DNS tunneling to build communication channels with command-and-control (C2) servers by encoding data in DNS queries and responses. B1txor20, while also buggy in some ways, currently supports the ability to obtain a shell, execute arbitrary commands, install a rootkit, open a  SOCKS5 proxy , and functions to upload sensitive information back to the C2 server. Once a machine is successfully compromised, the malware utilizes the DNS tunnel to retrieve and execute ...

Palo Alto Networks has disclosed a high-severity vulnerability impacting PAN-OS software that could cause a denial-of-service (DoS) condition on susceptible devices. The flaw, tracked as CVE-2024-3393 (CVSS score: 8.7), impacts PAN-OS versions 10.X and 11.X, as well as Prisma Access running PAN-OS versions 10.2.8 and later or prior to 11.2.3. It has been addressed in PAN-OS 10.1.14-h8, PAN-OS 10.2.10-h12, PAN-OS 11.1.5, PAN-OS 11.2.3, and all later PAN-OS versions. "A denial-of-service vulnerability in the DNS Security feature of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to send a malicious packet through the data plane of the firewall that reboots the firewall," the company said in a Friday advisory. "Repeated attempts to trigger this condition will cause the firewall to enter maintenance mode." Palo Alto Networks said it discovered the flaw in production use, and that it's aware of customers "experiencing this denial-of-...

In what's one of the most innovative hacking campaigns, cybercrime gangs are now hiding malicious code implants in the metadata of image files to covertly steal payment card information entered by visitors on the hacked websites. "We found skimming code hidden within the metadata of an image file (a form of steganography) and surreptitiously loaded by compromised online stores," Malwarebytes researchers said last week. "This scheme would not be complete without yet another interesting variation to exfiltrate stolen credit card data. Once again, criminals used the disguise of an image file to collect their loot." The evolving tactic of the operation, widely known as web skimming or a Magecart attack, comes as bad actors are finding different ways to inject JavaScript scripts, including misconfigured AWS S3 data storage buckets and exploiting content security policy to transmit data to a Google Analytics account under their control. Using Steganography ...

FBI will shutdown the Internet on March 8 The Internet could go dark for millions of users as early as March 8 because of a virus that has corrupted computers in more than 100 countries. Last year, authorities in Estonia apprehended six men believed responsible for creating a malicious computer script called the DNSChanger Trojan. Once set loose on the Web, the worm corrupted computers in upwards of 100 countries, including an estimated 500,000 in America alone. Must Read :  FAQ : DNSChanger Trojan, Impact and Solutions The primary impact of this infection is that it caused web surfers to be sent to fraudulent websites by changing what is called the DNS settings on compromised computers.The Domain Name System (DNS) is the backbone of the Internet's address scheme and DNS servers are special computers around the world that act as Internet traffic cops providing directions to websites that you wish to visit. Though the FBI has shut down the DNSChanger network and put up s...

DNS cache poisoning attack on Google, Gmail, YouTube, Yahoo, Apple Hacker with nickname AlpHaNiX deface Google, Gmail, Youtube, Yahoo, Apple etc domains of Democratic Republic of Congo. Hacker use strategy so-called DNS cache poisoning. DNS cache poisoning is a security or data integrity compromise in the Domain Name System (DNS). The compromise occurs when data is introduced into a DNS name server's cache database that did not originate from authoritative DNS sources. It may be a deliberate attempt of a maliciously crafted attack on a name server. Hacked websites are : https://apple.cd/ https://yahoo.cd/ https://gmail.cd/ https://google.cd/ https://youtube.cd/ https://linux.cd/ https://samsung.cd/ https://hotmail.cd/ https://microsoft.cd/ [ Source ]

Cybersecurity researchers have discovered a new version of the ZLoader malware that employs a Domain Name System (DNS) tunnel for command-and-control (C2) communications, indicating that the threat actors are continuing to refine the tool after resurfacing a year ago. "Zloader 2.9.4.0 adds notable improvements including a custom DNS tunnel protocol for C2 communications and an interactive shell that supports more than a dozen commands, which may be valuable for ransomware attacks," Zscaler ThreatLabz said in a Tuesday report. "These modifications provide additional layers of resilience against detection and mitigation." ZLoader , also referred to as Terdot, DELoader, or Silent Night, is a malware loader that's equipped with the ability to deploy next-stage payloads. Malware campaigns distributing the malware were observed for the first time in almost two years in September 2023 after its infrastructure was taken down. In addition to incorporating various...

Cybersecurity agencies from Australia, Canada, New Zealand, and the United States have published a joint advisory about the risks associated with a technique called fast flux that has been adopted by threat actors to obscure a command-and-control (C2) channel. "'Fast flux' is a technique used to obfuscate the locations of malicious servers through rapidly changing Domain Name System (DNS) records associated with a single domain name," the agencies said . "This threat exploits a gap commonly found in network defenses, making the tracking and blocking of malicious fast flux activities difficult." The advisory comes courtesy of the U.S. Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), Federal Bureau of Investigation (FBI), Australian Signals Directorate's Australian Cyber Security Centre, Canadian Centre for Cyber Security, and New Zealand's National Cyber Security Centre. Fast flux has been embraced by many...

Security researchers have uncovered nine vulnerabilities affecting four TCP/IP stacks impacting more than 100 million consumer and enterprise devices that could be exploited by an attacker to take control of a vulnerable system. Dubbed " NAME:WRECK " by Forescout and JSOF, the flaws are the latest in series of studies undertaken as part of an initiative called Project Memoria to study the security of widely-used TCP/IP stacks that are incorporated by various vendors in their firmware to offer internet and network connectivity features. "These vulnerabilities relate to Domain Name System (DNS) implementations, causing either Denial of Service (DoS) or Remote Code Execution (RCE), allowing attackers to take target devices offline or to take control over them," the researchers said. The name comes from the fact that parsing of domain names can break (i.e., "wreck") DNS implementations in TCP/IP stacks, adding to a recent uptick in vulnerabilities such as ...

Providing public Wi-Fi is a great service to offer your customers as it becomes more and more standard in today's society. I like the fact that I do not have to worry about accessing the Internet while I am away, or spending a lot of money on an international connection, or just staying offline while I am away. With public Wi-Fi, modern life has become a constant connection to the Internet, whether we are on the bus, on the way to school or work, waiting for our flight in the airport or during the flight itself, or doing our homework or working on our projects in a café. We do business and communicate online in a variety of ways. We check our work emails, chat with our friends, and even take business calls online through the service. According to recent statistics, there are about 410,000 public Wi-Fi hotspots in the United States alone, in public places such as parks, libraries, public transportation, and train stations. Cons of using public Wi-Fi Despite the many benefits t...