Description

A sophisticated cyber-espionage campaign linked to the Iran-aligned threat group Seedworm has targeted at least nine organizations across multiple countries during early 2026. The victims included entities from the manufacturing, financial, education, aviation, and government sectors, indicating a broad intelligence-gathering effort. Security researchers attributed the operation to Seedworm, also known as MuddyWater and Static Kitten, a group widely believed to operate under Iran’s Ministry of Intelligence and Security. One of the most significant breaches reportedly involved a major electronics company in South Korea, where attackers maintained access to the corporate network for nearly a week without detection. The attackers relied heavily on stealth techniques designed to blend malicious activity with legitimate system processes. Instead of deploying easily detectable malware, they abused trusted signed applications from Fortemedia and SentinelOne to sideload malicious DLL files. This tactic allowed harmful code to execute under the guise of legitimate software, bypassing many traditional security defenses. The malicious payloads included ChromElevator, a credential-stealing tool capable of extracting browser passwords, cookies, and payment information. Investigators also discovered that Node.js was used to automate the infection chain, marking a shift from the group’s earlier dependence on PowerShell-based attacks. After gaining access, the threat actors conducted extensive reconnaissance and credential theft operations. They executed discovery commands, captured screenshots, extracted password hashes from Windows registry hives, and used deceptive login prompts to harvest credentials. A privilege-escalation utility was also deployed to obtain Kerberos tickets from high-level accounts. Stolen data was exfiltrated through the public file-transfer service sendit[.]sh, helping the attackers hide malicious traffic within normal cloud communications. Researchers advised organizations to closely monitor unsigned DLL activity, restrict unauthorized startup registry changes, and detect unusual Node.js execution to reduce the risk of similar intrusions.