Guardio Labs | Breaking Cybersecurity News | The Hacker News

Cybersecurity researchers have flagged a new technique that cybercriminals have adopted to bypass social media platform X's malvertising protections and propagate malicious links using its artificial intelligence (AI) assistant Grok. The findings were highlighted by Nati Tal, head of Guardio Labs, in a series of posts on X. The technique has been codenamed Grokking. The approach is designed to get around restrictions imposed by X in Promoted Ads that allow users to only include text, images, or videos, and subsequently amplify them to a broader audience, attracting hundreds of thousands of impressions through paid promotion. To achieve this, malvertisers have been found to run video card-promoted posts with adult content as bait, with the spurious link hidden in the "From:" metadata field below the video player that apparently isn't scanned by the social media platform. In the next step, the fraudsters tag Grok in replies to the post, asking something similar t...

A combination of propagation methods, narrative sophistication, and evasion techniques enabled the social engineering tactic known as ClickFix to take off the way it did over the past year, according to new findings from Guardio Labs. "Like a real-world virus variant, this new ' ClickFix ' strain quickly outpaced and ultimately wiped out the infamous fake browser update scam that plagued the web just last year," security researcher Shaked Chen said in a report shared with The Hacker News. "It did so by removing the need for file downloads, using smarter social engineering tactics, and spreading through trusted infrastructure. The result – a wave of infections ranging from mass drive-by attacks to hyper-targeted spear-phishing lures." ClickFix is the name given to a social engineering tactic where prospective targets are deceived into infecting their own machines under the guise of fixing a non-existent issue or a CAPTCHA verification. It was first det...

A now-patched security flaw in the Microsoft Edge web browser could have been abused to install arbitrary extensions on users' systems and carry out malicious actions.  "This flaw could have allowed an attacker to exploit a private API, initially intended for marketing purposes, to covertly install additional browser extensions with broad permissions without the user's knowledge," Guardio Labs security researcher Oleg Zaytsev  said  in a new report shared with The Hacker News. Tracked as  CVE-2024-21388  (CVSS score: 6.5), it was addressed by Microsoft in Edge stable version 121.0.2277.83 released on January 25, 2024, following responsible disclosure in November 2023. The Windows maker credited both Zaytsev and Jun Kokatsu for reporting the issue. "An attacker who successfully exploited this vulnerability could gain the privileges needed to install an extension," Microsoft said in an advisory for the flaw, adding it "could lead to a browser sandbo...

A new DNS threat actor dubbed  Savvy Seahorse  is leveraging sophisticated techniques to entice targets into fake investment platforms and steal funds. "Savvy Seahorse is a DNS threat actor who convinces victims to create accounts on fake investment platforms, make deposits to a personal account, and then transfers those deposits to a bank in Russia," Infoblox  said  in a report published last week. Targets of the campaigns include Russian, Polish, Italian, German, Czech, Turkish, French, Spanish, and English speakers, indicating that the threat actors are casting a wide net in their attacks. Users are lured via ads on social media platforms like Facebook, while also tricking them into parting with their personal information in return for alleged high-return investment opportunities through fake ChatGPT and WhatsApp bots. The financial scam campaigns are notable for using DNS canonical name (CNAME) records to create a traffic distribution system ( TDS ), thereb...

Threat actors have been observed serving malicious code by utilizing Binance's Smart Chain (BSC) contracts in what has been described as the "next level of bulletproof hosting." The campaign, detected two months ago, has been codenamed  EtherHiding  by Guardio Labs. The novel twist marks the latest iteration in an ongoing malware campaign that leverages compromised WordPress sites to serve unsuspecting visitors a fake warning to update their browsers before the sites can be accessed, ultimately leading to the deployment of information stealer malware such as Amadey, Lumma, or RedLine. "While their initial method of hosting code on abused Cloudflare Worker hosts was taken down, they've quickly pivoted to take advantage of the decentralized, anonymous, and public nature of blockchain," security researchers Nati Tal and Oleg Zaytsev  said . "This campaign is up and harder than ever to detect and take down." It's no surprise that threat act...