Latest cybersecurity reporting from selected sources.

At least two distinct threat actors are weaponizing a novel evasion technique called OAuth client ID spoofing in cloud campaigns, while slipping past telemetry

The Miasma worm compromised 73 Microsoft GitHub repos, spreading via AI coding tools and stealing cloud credentials from developers and CI/CD systems. A self-replicating worm called Miasma has compromised 73 Microsoft GitHub repositories and forced GitHub staff to disable them. The affected repos include core Azure infrastructure like azure-functions-host and the entire Durable Task family […]

A large-scale npm supply chain attack compromised over 90 versions of @redhat-cloud-services packages, silently infecting CI/CD environments and developer systems. The malicious code steals credentials from GitHub, cloud platforms, and local machines, then spreads like a worm by republishing trusted packages. Discover how the attack works, what data is at risk, and the steps you can take to protect your organization. The post Preinstall to persistence: Inside the Red Hat npm Miasma credential-stealing campaign appeared first on Microsoft Security Blog.

The Mini Shai-Hulud campaign used malicious npm packages to target cloud and CI/CD credentials across developer environments. This report details the attack chain, detection opportunities, and mitigation guidance to help organizations identify and disrupt related activity. The post Typosquatted npm packages used to steal cloud and CI/CD secrets appeared first on Microsoft Security Blog.

Consider a cached access key on a single Windows machine. It got there the way most cached credentials do - a user logged in, and the key stored itself automatically. Standard AWS behavior. No one misconfigured anything or violated a policy. Yet that single key, which was easily accessible to a minor-league attacker, could have opened a path to some 98% of entities in the company's cloud

Storm-2949 turned stolen credentials into a cloud-wide breach, moving from identity compromise to large-scale data theft without using malware. This incident shows how threat actors can exploit trusted systems to operate undetected. The post How Storm-2949 turned a compromised identity into a cloud-wide breach appeared first on Microsoft Security Blog.

Cybersecurity researchers have disclosed details of a stealthy Python-based backdoor framework called DEEP#DOOR that comes with capabilities to establish persistent access and harvest a wide range of sensitive information from compromised hosts

In this type of misconfiguration, cyberattackers could use exposed secrets to authenticate directly via Microsoft’s OAuth 2.0 endpoints and infiltrate Azure cloud environments.

Financially Motivated Actor Storm-0501 Systematically Probed Victim EnvironmentsAs enterprises go with hybrid cloud developments, so follow hackers, even if it means jumping through extra hoops to get to where the data is stored. Microsoft on Wednesday said it spotted a financially-motivated hacking group probing a hybrid on-premise.

CISA Advisory Says Threat Actors Stole App Secrets in Azure-Hosted Backup PlatformA suspected Chinese state hacking group linked to last year’s telecom intrusions breached Commvault’s Microsoft Azure environment, exposing sensitive Microsoft 365 credentials and reigniting fears over U.S. cloud infrastructure vulnerabilities and default security settings.

Microsoft Sees Cyberespionage Group Lifting API Keys and Credentials for CustomersA prolific cyberespionage group tied to Beijing appears to have increased its targeting of widely used IT tools and service providers. Microsoft said the group's tactics now include stealing API keys and credentials from providers to gain access to providers' downstream customers' infrastructure.

They're good at zero-day exploits, too Silk Typhoon, the Chinese government crew believed to be behind the December US Treasury intrusions, has been abusing stolen API keys and cloud credentials in ongoing attacks targeting IT companies and state and local government agencies since late 2024, according to Microsoft Threat Intelligence.…

Crew helped lowlifes generate X-rated celeb deepfakes using Redmond's OpenAI-powered cloud – claim Microsoft has named four of the ten people it is suing for allegedly snatching Azure cloud credentials and developing tools to bypass safety guardrails in its generative AI services – ultimately to generate deepfake smut videos of celebrities and others.…

Recent campaign targeted 20,000 folk across UK and Europe with this tactic, Unit 42 warns Unknown criminals went on a phishing expedition that targeted about 20,000 users across the automotive, chemical and industrial compound manufacturing sectors in Europe, and tried to steal account credentials and then hijack the victims' Microsoft Azure cloud infrastructure.…

Cybersecurity researchers have disclosed a new phishing campaign that has targeted European companies with an aim to harvest account credentials and take control of the victims' Microsoft Azure cloud infrastructure

Multiple popular mobile applications for iOS and Android come with hardcoded, unencrypted credentials for cloud services like Amazon Web Services (AWS) and Microsoft Azure Blob Storage, exposing user data and source code to security breaches. [...]

Since April, attackers have increased their use of Dropbox, OneDrive, and SharePoint to steal the credentials of business users and conduct further malicious activity.

Microsoft warns that ransomware group Storm-0501 has shifted from buying initial access to leveraging weak credentials to gain on-premises access before moving laterally to the cloud.

The threat actor known as Storm-0501 has targeted government, manufacturing, transportation, and law enforcement sectors in the U.S. to stage ransomware attacks

Cybersecurity researchers are calling attention to a new QR code phishing (aka quishing) campaign that leverages Microsoft Sway infrastructure to host fake pages, once again highlighting the abuse of legitimate cloud offerings for malicious purposes