Malware | Breaking Cybersecurity News | The Hacker News

A previously undocumented threat activity cluster known as UNC6692 has been observed leveraging social engineering tactics via Microsoft Teams to deploy a custom malware suite on compromised hosts. "As with many other intrusions in recent years, UNC6692 relied heavily on impersonating IT helpdesk employees, convincing their victim to accept a Microsoft Teams chat invitation from an account outside their organization," Google-owned Mandiant said in a report published today. UNC6692 has been attributed to a large email campaign that's designed to overwhelm a target's inbox with a flood of spam emails, creating a false sense of urgency. The threat actor then approaches the target over Microsoft Teams by sending a message claiming to be from the IT support team to offer assistance with the email bombing problem. It's worth noting that this combination of bombarding a victim's email inbox followed by Microsoft Teams-based help desk impersonation has been a ...

Bitwarden CLI has been compromised as part of the newly discovered and ongoing Checkmarx supply chain campaign , according to new findings from JFrog and Socket. "The affected package version appears to be @bitwarden/cli@2026.4.0 , and the malicious code was published in 'bw1.js,' a file included in the package contents," the application security company said . "The attack appears to have leveraged a compromised GitHub Action in Bitwarden's CI/CD pipeline, consistent with the pattern seen across other affected repositories in this campaign." In a post on X, JFrog said the rogue version of the package "steals GitHub/npm tokens, .ssh, .env, shell history, GitHub Actions and cloud secrets, then exfiltrates the data to private domains and as GitHub commits." Specifically, the malicious code is executed by means of a preinstall hook, resulting in the theft of local, CI, GitHub, and cloud secrets. The data is exfiltrated to the domain "a...

You scroll past one incident and see another that feels familiar, like it should have been fixed years ago, but it still works with small changes. Same bugs. Same mistakes. The supply chain is messy. Packages you did not check are stealing data, adding backdoors, and spreading. Attacking the systems behind apps is easier than breaking the apps themselves. The exploits are simple but still work, giving attackers easy access. AI tools are also part of the problem now. They trust bad input and take real actions, which makes the damage bigger. Then there are quieter issues. Apps take data they should not. Devices behave in strange ways. Attackers keep testing what they can get away with. No noise. Just ongoing damage. Here is the list for this week’s ThreatsDay Bulletin. State-backed crypto heist North Korea Likely Behind KelpDAP $290M Crypto Heist Inter-blockchain communication protocol LayerZero has revealed that North Korean thr...

Mongolian governmental institutions have emerged as the target of a previously undocumented China-aligned advanced persistent threat (APT) group tracked as GopherWhisper . "The group wields a wide array of tools mostly written in Go, using injectors and loaders to deploy and execute various backdoors in its arsenal," Slovakian cybersecurity company ESET said in a report shared with The Hacker News. "GopherWhisper abuses legitimate services, notably Discord, Slack, Microsoft 365 Outlook, and file.io for command-and-control (C&C) communication and exfiltration." The group was first discovered in January 2025 following the discovery of a never-before-seen backdoor codenamed LaxGopher on a system belonging to a Mongolian governmental entity. GopherWhisper is assessed to be active at least since November 2023. Besides LaxGopher, some of the other malware families part of the threat actor's arsenal are Golang-based tools to receive instructions from the C&...

Vercel on Wednesday revealed that it has identified an additional set of customer accounts that were compromised as part of a security incident that enabled unauthorized access to its internal systems. The company said it made the discovery after expanding its investigation to include an extra set of compromise indicators, alongside a review of requests to the Vercel network and environment variable read events in its logs. "Second, we have uncovered a small number of customer accounts with evidence of prior compromise that is independent of and predates this incident, potentially as a result of social engineering, malware, or other methods," the company said in an update. In both cases, Vercel said it notified affected parties. It did not disclose the exact number of customers who were impacted. The development comes after the company that created the Next.js framework acknowledged the breach originated with a compromise of Context.ai after it was used by a Vercel em...