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Cybersecurity researchers have flagged a new malware called PLAYFULGHOST that comes with a wide range of information-gathering features like keylogging, screen capture, audio capture, remote shell, and file transfer/execution. The backdoor, according to Google's Mandiant Managed Defense team, shares functional overlaps with a known remote administration tool referred to as Gh0st RAT , which had its source code publicly leaked in 2008. PLAYFULGHOST's initial access pathways include the use of phishing emails bearing code of conduct-related lures or search engine optimization (SEO) poisoning techniques to distribute trojanized versions of legitimate VPN apps like LetsVPN. "In one phishing case, the infection begins by tricking the victim into opening a malicious RAR archive disguised as an image file by using a .jpg extension," the company said . "When extracted and executed by the victim, the archive drops a malicious Windows executable, which eventually dow...

The U.S. Treasury Department's Office of Foreign Assets Control (OFAC) on Friday issued sanctions against a Beijing-based cybersecurity company known as Integrity Technology Group, Incorporated for orchestrating several cyber attacks against U.S. victims. These attacks have been publicly attributed to a Chinese state-sponsored threat actor tracked as Flax Typhoon (aka Ethereal Panda or RedJuliett ), which was outed last year as operating an Internet of Things (IoT) botnet called Raptor Train . The hacking crew has been active since at least mid-2021, targeting various entities across North America, Europe, Africa, and across Asia. Attacks mounted by Flax Typhoon have typically leveraged known vulnerabilities to gain initial access to victims' computers and then make use of legitimate remote access software to maintain persistent access.  The Treasury Department described Chinese malicious cyber actors as one of the "most active and most persistent threats to U.S. nati...

Cybersecurity researchers have shed light on a new jailbreak technique that could be used to get past a large language model's (LLM) safety guardrails and produce potentially harmful or malicious responses. The multi-turn (aka many-shot) attack strategy has been codenamed Bad Likert Judge by Palo Alto Networks Unit 42 researchers Yongzhe Huang, Yang Ji, Wenjun Hu, Jay Chen, Akshata Rao, and Danny Tsechansky. "The technique asks the target LLM to act as a judge scoring the harmfulness of a given response using the Likert scale , a rating scale measuring a respondent's agreement or disagreement with a statement," the Unit 42 team said . "It then asks the LLM to generate responses that contain examples that align with the scales. The example that has the highest Likert scale can potentially contain the harmful content." The explosion in popularity of artificial intelligence in recent years has also led to a new class of security exploits called prompt in...

A proof-of-concept (PoC) exploit has been released for a now-patched security flaw impacting Windows Lightweight Directory Access Protocol (LDAP) that could trigger a denial-of-service (DoS) condition. The out-of-bounds reads vulnerability is tracked as CVE-2024-49113 (CVSS score: 7.5). It was addressed by Microsoft as part of Patch Tuesday updates for December 2024, alongside CVE-2024-49112 (CVSS score: 9.8), a critical integer overflow flaw in the same component that could result in remote code execution. Credited with discovering and reporting both vulnerabilities is independent security researcher Yuki Chen ( @guhe120 ). The CVE-2024-49113 PoC devised by SafeBreach Labs, codenamed LDAPNightmare , is designed to crash any unpatched Windows Server "with no pre-requisites except that the DNS server of the victim DC has Internet connectivity."  Specifically, it entails sending a DCE/RPC request to the victim server, ultimately causing the Local Security Authority Su...

Microsoft has announced that it's making an "unexpected change" to the way .NET installers and archives are distributed, requiring developers to update their production and DevOps infrastructure. "We expect that most users will not be directly affected, however, it is critical that you validate if you are affected and to watch for downtime or other kinds of breakage," Richard Lander, a program manager on the .NET team, said in a statement last week. The move is the result of the fact that some .NET binaries and installers are hosted on Azure Content Delivery Network (CDN) domains that end in .azureedge[.]net -- dotnetcli.azureedge.net and dotnetbuilds.azureedge.net -- which are hosted on Edgio. Last month, web infrastructure and security company Akamai acquired select assets from Edgio following its bankruptcy. As part of this transition, the Edgio platform is scheduled to end service on January 15, 2025. Given that the .azureedge[.]net domains could ceas...