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The U.S. Federal Bureau of Investigation (FBI) is warning that Barracuda Networks Email Security Gateway (ESG) appliances patched against a recently disclosed critical flaw continue to be at risk of potential compromise from suspected Chinese hacking groups. It also  deemed  the fixes as "ineffective" and that it "continues to observe active intrusions and considers all affected Barracuda ESG appliances to be compromised and vulnerable to this exploit." Tracked as  CVE-2023-2868  (CVSS score: 9.8), the zero-day bug is said to have been weaponized as early as October 2022, more than seven months before the security hole was plugged. Google-owned Mandiant is tracking the China-nexus activity cluster under the name  UNC4841 . The remote command injection vulnerability, impacting versions 5.1.3.001 through 9.2.0.006, allows for unauthorized execution of system commands with administrator privileges on the ESG product. In the attacks observed so far, a successf...

The North Korea-linked threat actor known as Lazarus Group has been observed exploiting a now-patched critical security flaw impacting Zoho ManageEngine ServiceDesk Plus to distribute a remote access trojan called such as  QuiteRAT . Targets include internet backbone infrastructure and healthcare entities in Europe and the U.S., cybersecurity company Cisco Talos said in a  two-part   analysis  published today. What's more, a closer examination of the adversary's recycled attack infrastructure used in its cyber assaults on enterprises has led to the discovery of a new threat dubbed  CollectionRAT . The fact that the Lazarus Group continues to rely on the same tradecraft despite those components being well-documented over the years underscores the threat actor's confidence in their operations, Talos pointed out. QuiteRAT is said to be a successor to  MagicRAT , itself a follow-up to TigerRAT, while CollectionRAT appears to share overlaps with  Early...

A new financially motivated operation is leveraging a malicious Telegram bot to help threat actors scam their victims. Dubbed  Telekopye , a portmanteau of Telegram and kopye (meaning "spear" in Russian), the toolkit functions as an  automated means  to create a phishing web page from a premade template and send the URL to potential victims, codenamed Mammoths by the criminals. "This toolkit is implemented as a Telegram bot that, when activated, provides several easy-to-navigate menus in the form of clickable buttons that can accommodate many scammers at once," ESET researcher Radek Jizba  said  in a report shared with The Hacker News. The exact origins of the threat actors, dubbed Neanderthals, are unclear, but evidence points to Russia as the country of origin of the toolkit's authors and users, owing to the use of Russian SMS templates and the fact that a majority of the targeted online marketplaces are popular in the country. Multiple versions of Teleko...

Public Wi-Fi, which has long since become the norm, poses threats to not only individual users but also businesses. With the rise of remote work, people can now work from virtually anywhere: a cafe close to home, a hotel in a different city, or even while waiting for a plane at the airport. Next, let's explore the risks of connecting to public Wi-Fi, both for you personally and for businesses. According to the  Forbes Advisor  the majority of people (56%) connect to public Wi-Fi networks that don't require a password. This convenience comes at a price, and many are unaware that attackers can steal card details, passwords, and other sensitive information. Man-in-the-Middle (MITM) Attacks:  This is one of the most common threats on public Wi-Fi. In an MITM attack, the hacker secretly intercepts and possibly alters the communication between two parties. The user believes they are directly communicating with a website, email server, or another user, but the hacker is rela...

The SmokeLoader malware is being used to deliver a new Wi-Fi scanning malware strain called  Whiffy Recon  on compromised Windows machines. "The new malware strain has only one operation. Every 60 seconds it triangulates the infected systems' positions by scanning nearby Wi-Fi access points as a data point for Google's geolocation API," Secureworks Counter Threat Unit (CTU)  said  in a statement shared with The Hacker News. "The location returned by Google's  Geolocation API  is then sent back to the adversary." SmokeLoader , as the name implies, is a loader malware whose sole purpose is to drop additional payloads onto a host. Since 2014, the malware has been  offered for sale  to Russian-based threat actors. It's traditionally distributed via phishing emails. Whiffy Recon works by checking for the WLAN AutoConfig service (WLANSVC) on the infected system and terminating itself if the service name doesn't exist. It's worth noting that th...

A recently patched security flaw in the popular WinRAR archiving software has been exploited as a zero-day since April 2023, new findings from Group-IB reveal. The vulnerability, cataloged as  CVE-2023-38831 , allows threat actors to spoof file extensions, thereby making it possible to launch malicious scripts contained within an archive that masquerades as seemingly innocuous image or text files. It was addressed in  version 6.23  released on August 2, 2023, alongside CVE-2023-40477. In attacks discovered by the Singapore-based firm in July 2023, specially crafted ZIP or RAR archive files distributed via trading-related forums such as Forex Station have been used to deliver a variety of malware families such as DarkMe,  GuLoader , and  Remcos RAT . "After infecting devices, the cybercriminals withdraw money from broker accounts," Group-IB malware analyst Andrey Polovinkin  said , adding as many as 130 traders' devices have been compromised as part of ...