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Showing posts with label ISP. Show all posts

Cloudflare Blocks a  DDoS Attack with 15 million Requests Per Second

 

On Wednesday, Cloudflare, an internet infrastructure company, revealed it has successfully resisted one of the largest volumetric distributed denials of service (DDoS) attacks ever seen. A DDoS attack with a pace of 15.3 million requests per second (rps) was discovered and handled earlier this month, making it one of the greatest HTTPS DDoS attacks ever. 

According to Cloudflare's Omer Yoachimik and Julien Desgats, "HTTPS DDoS assaults are more pricey of necessary computational resources due to the increased cost of establishing a secure TLS encrypted connection." "As a result, the attacker pays more to launch the assault, and the victim pays more to mitigate it. Traditional bandwidth DDoS assaults, in which attackers seek to exhaust and jam the victim's internet connection bandwidth, are different from volumetric DDoS attacks. Instead, attackers concentrate on sending as many spam HTTP requests as possible to a victim's server to consume valuable server CPU and RAM and prevent legitimate visitors from accessing targeted sites."

Cloudflare previously announced it mitigated the world's largest DDoS attack in August 2021, once it countered a 17.2 million HTTP requests per second (rps) attack, which the company described as nearly three times larger than any prior volumetric DDoS attack ever observed in the public domain. As per Cloudflare, the current attack was launched from a botnet including about 6,000 unique infected devices, with Indonesia accounting for 15% of the attack traffic, trailed by Russia, Brazil, India, Colombia, and the United States. 

"What's intriguing is the majority of the attacks came from data centers," Yoachimik and Desgats pointed out. "We're seeing a significant shift away from residential network Internet Service Providers (ISPs) and towards cloud compute ISPs." According to Cloudflare, the attack was directed at a "crypto launchpad," which is "used to showcase Decentralized Finance projects to potential investors." 

Amazon Web Services recorded the largest bandwidth DDoS assault ever at 2.3 terabytes per second (Tbps) in February 2020. In addition, cybersecurity firm Kaspersky reported this week about the number of DDoS attacks increased 4.5 times year over year in the first quarter of 2022, owing partly to Russia's invasion of Ukraine.

Hackers from China's 'Mustang Panda' were Utilizing New 'Hodur' Malware

 

Mustang Panda (a.k.a. Temp.Hex, HoneyMyte, TA416 or RedDelta), a China-based advanced persistent threat (APT), has been traced to an ongoing cyberattack campaign using a formerly undocumented variation of the PlugX remote access trojan on affected workstations mostly in and around Southeast Asia. For its similarities to another PlugX (aka Korplug) variation called THOR which surfaced in July 2021, slovak cybersecurity firm ESET termed the current version Hodur. 

Korplug is a proprietary virus used widely, it was initially uncovered in a 2020 investigation that looked into Chinese hackers' activities against Australian targets. Mustang Panda employs phishing lures with counterfeit papers to target European embassies, ISPs (Internet Service Providers), and research institutes in the most recent known campaign, according to cybersecurity firm ESET. "Anti-analysis measures and control-flow obfuscation are used at every level of the deployment process," the firm told.

Hodur is based on PlugX, a remote access tool that "allows remote users to steal data or take control of impacted systems without authorization. It can copy, move, rename, execute, and delete files, as well as log keystrokes and fingerprint the infected system." The infections end with the implementation of the Hodur backdoor on the infected Windows host, irrespective of the phishing lure used. 

As formerly stated, the campaign begins simply, with the group phishing its targets using current events. Proofpoint identified it using a NATO diplomat's email address to send out.ZIP and.EXE files labeled "Situation at the EU Borders with Ukraine" last month. If a victim accepts the bait, a legitimate, properly signed executable prone to DLL search-order hijacking will be delivered. Russia, Greece, Cyprus, South Africa, Vietnam, Mongolia, Myanmar, and South Sudan are the countries targeted in this campaign. 

ESET claims to have sampled sophisticated custom loaders as well as new Korplug (Hodur) versions still using DLL side-loading but has considerably more robust obfuscation and anti-analysis techniques across the infection chain. The side-loading custom DLL loader uses a digitally-signed genuine executable, in this case, a SmadAV file, and leverages a known flaw. Except for one, which loads the new Korplug variation, the loader's many functions are all fake. 

As it is a Chinese actor with a history of pursuing higher political espionage purposes, the scope of its targeting should be rather consistent.

Viasat Claims Delay on a "Cyber Event"

 

Viasat Inc., an American communications provider, claims its satellite internet services in Ukraine and Europe are being disrupted by a "cyber incident." 

Based in Carlsbad, California, Viasat offers high-speed satellite broadband access and secure networking systems to military and commercial customers throughout the United States and around the world. The problem stems from Viasat's purchase of the Ka-SAT satellite from the satellite's launcher and former owner, Eutelsat, in April 2021. 

"While we attempt to restore service to affected consumers, we're also looking into and evaluating our European network and systems to figure out what's causing the problem. We're also putting further network safeguards in place to avoid any further consequences." authorities stated. 

According to the firm, the interruption began on February 24, the day Russia invaded Ukraine, and it contacted "law enforcement and government partners," adding it had "no indication of consumer data is implicated." In a statement to PaxEx.Aero, another ISP, Germany-based EUSANET, the company said it was suffering problems as well. 

An insider told British news channel Sky News that the interruptions were triggered by a distributed denial of service (DDoS) attack. The number of Viasat users in Ukraine is unknown, and the firm has declined to specify how many are affected. Subsequently, Viasat's stock was up 3.5 percent in lunchtime trade Monday, trading at around $45. 

To optimize service area, Viasat operates huge satellites in geosynchronous orbit, which means people are stationary at a location roughly 35,000 kilometers from Earth.

This is the conventional method of providing broadband access from space, but a number of businesses, including SpaceX's Starlink, are investing in constructing networks in low-Earth orbit which use hundreds or thousands of satellites.

Personal Information of 2,000 FOID Cardholders Compromised in ISP Website Breach

 

The Illinois State Police are notifying Firearm Owners Identification cardholders regarding a possible data breach after attackers attempted to breach the agency's Police FOID card portal.

According to ISP officials, the personal information of about 2,000 FOID cardholders, or about .0008% of the total number of FOID cardholders in the state, may have been compromised in the attempted hack. Those people will be contacted, the agency said in a news release.

“The software vendor determined that using previously stolen personal data to access existing accounts, unauthorized users may or may not have accessed additional “auto-populated” personal identifiers unique to that account and card such as the last four of a social security number. 2,067 FOID card holders, less than .0008 % of total cardholders, were possibly impacted by these attempts. In accordance with state law and out of an abundance of caution, all affected persons were sent a notice and issued a new card at no cost, according to the news release.

The ISP has strengthened its online security requirements and is limiting the use and access of personal information that FOID card applicants submit in their online FOID account that could match Illinois resident personal identification information unlawfully obtained from any number of previous cyber breaches. The personal information did not come from their systems and servers, ISP officials said after an investigation. 

The FOID website software vendor, working with ISP, recently determined unauthorized persons were attempting to use this type of previously unlawfully obtained personal information to match with and access existing FOID online account information to add further detail to their existing stolen data, the release read. 

The site is back online and is accepting applications. The residents who want to buy and own firearms and ammunition possess a Firearm Owners Identification card issued by Illinois State Police. For more than 18 months, the state has been delayed in processing applications for the required ID, with many waiting months, the agency said. 

“I’d rather there not be a database somewhere of gun owners and their addresses. It doesn’t take that much imagination to figure out how that information can be used in ways that increase the risk to those persons,” Cybersecurity consultant John Bambenek said while raising questions regarding cybersecurity.