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An updated version of a botnet malware called  Prometei  has infected more than 10,000 systems worldwide since November 2022. The infections are both geographically indiscriminate and opportunistic, with a majority of the victims reported in Brazil, Indonesia, and Turkey. Prometei, first observed in 2016, is a modular botnet that features a large repertoire of components and several proliferation methods, some of which also include the  exploitation  of ProxyLogon Microsoft Exchange Server flaws. It's also notable for avoiding striking Russia, suggesting that the threat actors behind the operation are likely based in the country. The cross-platform botnet's motivations are financial, primarily leveraging its pool of infected hosts to mine cryptocurrency and harvest credentials. The latest variant of Prometei (called v3) improves upon its existing features to challenge forensic analysis and further burrow its access on victim machines, Cisco Talos  said ...

A suspecting China-linked hacking campaign has been observed targeting unpatched SonicWall  Secure Mobile Access (SMA) 100 appliances  to drop malware and establish long-term persistence. "The malware has functionality to steal user credentials, provide shell access, and persist through firmware upgrades," cybersecurity company Mandiant  said  in a technical report published this week. The Google-owned incident response and threat intelligence firm is tracking the activity under its uncategorized moniker  UNC4540 . The malware – a collection of bash scripts and a single ELF binary identified as a TinyShell backdoor – is engineered to grant the attacker privileged access to SonicWall devices. The overall objective behind the custom toolset appears to be credential theft, with the malware permitting the adversary to siphon cryptographically hashed credentials from all logged-in users. It further provides shell access to the compromised device. Mandiant also...

A coordinated international law enforcement exercise has taken down the online infrastructure associated with a cross-platform remote access trojan (RAT) known as NetWire . Coinciding with the seizure of the sales website www.worldwiredlabs[.]com, a Croatian national who is suspected to be the website's administrator has been arrested. While the suspect's name was not released, investigative journalist Brian Krebs  identified  Mario Zanko as the owner of the domain. "NetWire is a licensed commodity RAT offered in underground forums to non-technical users to carry out their own criminal activities," Europol's European Cybercrime Center (EC3)  said  in a tweet. Advertised  since   at least 2012 , the malware is typically distributed via  malspam campaigns  and gives a remote attacker complete control over a Windows, macOS, or Linux system. It also comes with password-stealing and keylogging capabilities. The U.S. Department of Justice (DoJ)...

Multi-factor Authentication (MFA) has long ago become a standard security practice. With a wide consensus on its ability to fend off more than 99% percent of account takeover attacks, it's no wonder why security architects regard it as a must-have in their environments. However, what seems to be less known are the inherent coverage limitations of traditional MFA solutions. While compatible with RDP connection and local desktop logins,  they offer no protection to remote command line access tools like PsExec, Remote PowerShell and their likes. In practice, it means that workstations and servers remain as vulnerable to lateral movement, ransomware spread and other identity threats despite having a fully functioning MFA solution on. For the adversary it's just a matter of taking the command line path instead of the RDP to log in as if there was not protection installed at all. In this article we'll explore this blind spot, understand its root cause and implications, and view ...

A new variant of the Android banking trojan named Xenomorph has surfaced in the wild, latest findings from ThreatFabric reveal. Named " Xenomorph 3rd generation " by the Hadoken Security Group, the threat actor behind the operation, the updated version comes with new features that allow it to perform financial fraud in a seamless manner. "This new version of the malware adds many new capabilities to an already feature-rich Android banker, most notably the introduction of a very extensive runtime engine powered by Accessibility services, which is used by actors to implement a complete  ATS framework ," the Dutch security firm  said  in a report shared with The Hacker News. Xenomorph  first came to light  a year ago in February 2022, when it was found to target 56 European banks through  dropper apps  published on the Google Play Store. In contrast, the latest iteration of the banker – which has a dedicated website advertising its features – is des...