lnk file format | Breaking Cybersecurity News | The Hacker News

A recently discovered malware builder called Quantum Builder is being used to deliver the Agent Tesla remote access trojan (RAT). "This campaign features enhancements and a shift toward LNK (Windows shortcut) files when compared to similar attacks in the past," Zscaler ThreatLabz researchers Niraj Shivtarkar and Avinash Kumar  said  in a Tuesday write-up. Sold on the dark web for €189 a month,  Quantum Builder  is a customizable tool for generating malicious shortcut files as well as HTA, ISO, and PowerShell payloads to deliver next-stage malware on the targeted machines, in this case  Agent Tesla . The multi-stage attack chain starts with a spear-phishing email containing a GZIP archive attachment that includes a shortcut designed to execute PowerShell code responsible for launching a remote HTML application (HTA) using  MSHTA . The phishing emails purport to be an order confirmation message from a Chinese supplier of lump and rock sugar, with the L...

A security researcher has discovered a serious vulnerability in the default configuration of the latest version of Google's Chrome running on any version of Microsoft's Windows operating system, including Windows 10, that could allow remote hackers to steal user's login credentials. Researcher Bosko Stankovic of DefenseCode has found that just by visiting a website containing a malicious SCF file could allow victims to unknowingly share their computer's login credentials with hackers via Chrome and the SMB protocol. This technique is not new and was exploited by the Stuxnet — a powerful malware that specially designed to destroy Iran's nuclear program — that used the Windows shortcut LNK files to compromise systems. What's make this attack different from others is the fact that such SMB authentication related attacks have been first time demonstrated on Google Chrome publicly, after Internet Explorer (IE) and Edge. Chrome + SCF + SMB = Stealing Windows...

The latest Palo Alto Networks Unit 42 Cloud Threat Report found that sensitive data is found in 66% of cloud storage buckets. This data is vulnerable to ransomware attacks. The SANS Institute recently reported that these attacks can be performed by abusing the cloud provider's storage security controls and default settings. "In just the past few months, I have witnessed two different methods for executing a ransomware attack using nothing but legitimate cloud security features," warns Brandon Evans, security consultant and SANS Certified Instructor. Halcyon disclosed an attack campaign that leveraged one of Amazon S3's native encryption mechanisms, SSE-C, to encrypt each of the target buckets. A few months prior, security consultant Chris Farris demonstrated how attackers could perform a similar attack using a different AWS security feature, KMS keys with external key material, using simple scripts generated by ChatGPT. "Clearly, this topic is top-of-mind for both threat actors and ...