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More than 225,000 logs containing compromised OpenAI ChatGPT credentials were made available for sale on underground markets between January and October 2023, new findings from Group-IB show. These credentials were found within  information stealer logs  associated with LummaC2, Raccoon, and RedLine stealer malware. “The number of infected devices decreased slightly in mid- and late summer but grew significantly between August and September,” the Singapore-headquartered cybersecurity company  said  in its Hi-Tech Crime Trends 2023/2024 report published last week. Between June and October 2023, more than 130,000 unique hosts with access to OpenAI ChatGPT were infiltrated, a 36% increase over what was observed during the first five months of 2023. The breakdown by the top three stealer families is below - LummaC2 - 70,484 hosts Raccoon - 22,468 hosts RedLine - 15,970 hosts “The sharp increase in the number of ChatGPT credentials for sale is due to the overal...

The threat actor known as  TA577  has been observed using ZIP archive attachments in phishing emails with an aim to steal NT LAN Manager ( NTLM ) hashes. The new attack chain “can be used for sensitive information gathering purposes and to enable follow-on activity,” enterprise security firm Proofpoint  said  in a Monday report. At least two campaigns taking advantage of this approach were observed on February 26 and 27, 2024, the company added. The phishing waves disseminated thousands of messages and targeted hundreds of organizations across the world. The messages themselves appeared as responses to previous emails, a known technique called thread hijacking, in a bid to increase the likelihood of the attacks' success. The ZIP attachments – which are the most common delivery mechanism – come with an HTML file that's designed to contact an actor-controlled Server Message Block (SMB) server. “TA577’s objective is to capture NTLMv2 Challenge/Response pairs fro...

A new pair of security vulnerabilities have been disclosed in JetBrains TeamCity On-Premises software that could be exploited by a threat actor to take control of affected systems. The flaws, tracked as CVE-2024-27198 (CVSS score: 9.8) and CVE-2024-27199 (CVSS score: 7.3), have been addressed in version 2023.11.4. They impact all TeamCity On-Premises versions through 2023.11.3. “The vulnerabilities may enable an unauthenticated attacker with HTTP(S) access to a TeamCity server to bypass authentication checks and gain administrative control of that TeamCity server,” JetBrains  said  in an advisory released Monday. TeamCity Cloud instances have already been patched against the two flaws. Cybersecurity firm Rapid7, which discovered and reported the issues on February 20, 2024, said CVE-2024-27198 is a case of authentication bypass that allows for a complete compromise of a susceptible server by a remote unauthenticated attacker. “Compromising a TeamCity server allows an at...

Cybercriminals are using a network of hired money mules in India using an Android-based application to orchestrate a massive money laundering scheme. The malicious application, called  XHelper , is a "key tool for onboarding and managing these money mules," CloudSEK researchers Sparsh Kulshrestha, Abhishek Mathew, and Santripti Bhujel  said  in a report. Details about the scam  first emerged  in late October 2023, when Chinese cyber criminals were found to take advantage of the fact that Indian Unified Payments Interface ( UPI ) service providers operate without coverage under the Prevention of Money Laundering Act (PMLA) to initiate illegal transactions under the guise of offering an instant loan. The ill-gotten proceeds from the operation are transferred to other accounts belonging to hired mules, who are recruited from Telegram in return for commissions ranging from 1-2% of the total transaction amounts. "Central to this operation are Chinese payment ga...

A company’s lifecycle stage, size, and state have a significant impact on its security needs, policies, and priorities. This is particularly true for modern mid-market companies that are either experiencing or have experienced rapid growth. As requirements and tasks continue to accumulate and malicious actors remain active around the clock, budgets are often stagnant at best. Yet, it is crucial to keep track of the tools and solutions that employees are introducing, the data and know-how shared through these tools, and to ensure that these processes are secure. This need is even more pronounced in today's dynamic and interconnected world, where third-party applications and solutions can be easily accessed and onboarded. The potential damage of losing control over the numerous applications with access and permissions to your data requires no explanation. Security leaders in mid-market companies face a unique set of challenges that demand a distinct approach to overcome.  To begin...

As many as 100 malicious artificial intelligence (AI)/machine learning (ML) models have been discovered in the Hugging Face platform. These include instances where loading a  pickle file  leads to code execution, software supply chain security firm JFrog said. "The model's payload grants the attacker a shell on the compromised machine, enabling them to gain full control over victims' machines through what is commonly referred to as a 'backdoor,'" senior security researcher David Cohen  said . "This silent infiltration could potentially grant access to critical internal systems and pave the way for large-scale data breaches or even corporate espionage, impacting not just individual users but potentially entire organizations across the globe, all while leaving victims utterly unaware of their compromised state." Specifically, the rogue model initiates a reverse shell connection to 210.117.212[.]93, an IP address that belongs to the Korea Research...