Huntress SOC analysts have uncovered sophisticated data exfiltration techniques employed by threat actors. The analysis reveals the use of various tools for data staging, including WinZip, 7Zip, and Windows' native tar.exe. Exfiltration methods observed include the use of finger.exe and backup utilities like restic, BackBlaze, and s5cmd. A specific incident on February 25, 2026, involved INC ransomware deployment, with the threat actor using PSEXEC for privilege escalation and creating a scheduled task to run a malicious PowerShell script. The actor utilized the Restic backup utility, renamed as winupdate.exe, to exfiltrate data. Similar tactics were observed in a previous incident on February 9, suggesting a pattern in the threat actor's methodology.
Google paid over $3.7 million for Chrome vulnerabilities, and more than $3.5 million for cloud security defects. The post Google Paid Out $17 Million in Bug Bounty Rewards in 2025 appeared first on SecurityWeek .
Evidence indicates that the attackers leveraged existing endpoint management software rather than malware to wipe devices. The post Iran-Linked Hacker Attack on Stryker Disrupted Manufacturing and Shipping appeared first on SecurityWeek .
On Wednesday, a phishing message made its way into our handler inbox that contained a fairly typical low-quality lure, but turned out to be quite interesting in the end nonetheless. That is because the accompanying credential stealing web page was dynamically constructed using React and used a legitimate e-mail service for credential collection.
The company has released iOS and iPadOS versions 16.7.15 and 15.8.7 to patch the vulnerabilities. The post Apple Updates Legacy iOS Versions to Patch Coruna Exploits appeared first on SecurityWeek .
Applying SOC-level rigor to the rumors, politics, and 'human intel' can make or break a security team. The post The Human IOC: Why Security Professionals Struggle with Social Vetting appeared first on SecurityWeek .
The 2024 incident was initially linked to China, but an infostealer infection has now revealed North Korean involvement. The post Polyfill Supply Chain Attack Impacting 100k Sites Linked to North Korea appeared first on SecurityWeek .
CVE-2026-1717 is a medium severity vulnerability in Lenovo Vantage and Lenovo Baiying products caused by improper neutralization of argument delimiters (CWE-88) in the LenovoProductivitySystemAddin. This flaw allows a local authenticated user to perform argument injection, enabling them to terminate arbitrary processes with elevated privileges without user interaction. The vulnerability requires local access and low attack complexity but does not require additional authentication beyond local user privileges. There are no known exploits in the wild currently, and no patches have been published yet. The CVSS 4.0 score is 6.8, reflecting the moderate risk due to privilege escalation potential. Organizations using Lenovo Vantage on Windows systems should monitor for updates and restrict local user permissions to mitigate risk. Countries with significant Lenovo market penetration and enterprise usage are most at risk, including the United States, China, Germany, Japan, and India. This vulnerability highlights the importance of secure input validation in privileged system components to prevent local privilege escalation attacks.
Stryker was targeted by the Handala group, which claims to have wiped more than 200,000 of the company’s devices. The post MedTech Giant Stryker Crippled by Iran-Linked Hacker Attack appeared first on SecurityWeek .
The cybercriminals have leaked more than 300GB of files allegedly stolen from the tire giant. The post Michelin Confirms Data Breach Linked to Oracle EBS Attack appeared first on SecurityWeek .
A sophisticated infection chain has been discovered that installs CastleRAT malware without leaving traces on disk. The attack uniquely abuses the Deno runtime as a malicious framework, combining social engineering, steganography, and in-memory execution to evade detection. The process involves tricking users into executing a command, installing Deno, running obfuscated JavaScript, and decoding a payload hidden in a JPEG image. CastleRAT then gains total control, performing host fingerprinting, keylogging, clipboard hijacking, digital identity theft, and audio/video surveillance. This campaign demonstrates the evolution of malware towards invisibility and the need for advanced endpoint behavioral monitoring to detect such threats.
BlackSanta is a malware module designed to disable endpoint detection and response (EDR) and antivirus (AV) solutions before executing its primary malicious payload. By killing these security defenses first, it increases the likelihood of successful infection and persistence on targeted systems. Although no known exploits are currently reported in the wild, the malware’s capability to neutralize security tools poses a significant risk. The threat is rated medium severity due to its potential impact on system integrity and confidentiality, but it requires initial access to the target environment. Organizations should prioritize detection of unusual process terminations and implement robust endpoint protection strategies. Countries with high adoption of EDR/AV solutions and critical infrastructure are more likely to be targeted. Immediate mitigation involves hardening endpoint security, monitoring for suspicious process behavior, and applying strict access controls to limit malware execution opportunities.
A new phishing technique abusing Microsoft's OAuth Device Code flow is on the rise, with over 180 phishing URLs detected in a week. This method shifts from credential theft to token-based account takeover, making detection more challenging. Attackers initiate a device authorization process, tricking victims into approving it on legitimate Microsoft pages. The attack uses encrypted HTTPS traffic and legitimate authentication flows, bypassing traditional phishing indicators. Victims unknowingly grant attackers access to their Microsoft 365 accounts through OAuth tokens. This poses a critical risk as it allows immediate access to corporate data and resources, potentially leading to business email compromise and persistent access through refresh tokens.
Key Points Iran-linked actors are increasingly engaging with the cyber crime ecosystem. Their activity suggests a growing reliance on criminal tools, services, and operational models in support of state objectives. Iranian actors have long used cyber crime and hacktivism as cover for destructive activity, but the trend now suggests direct engagement with the criminal ecosystem. […] The post Iranian MOIS Actors & the Cyber Crime Connection appeared first on Check Point Research .
