The Iran-linked hacking group MuddyWater (a.k.a. Seedworm, Static Kitten) launched a broad cyber-espionage campaign targeting at least nine high-profile organizations across multiple sectors and countries. Among the victims are a major South Korean electronics manufacturer, government agencies, an international airport in the Middle East, industrial manufacturers in Asia, and educational institutions. Researchers at Symantec say that the threat actor “spent a week inside the network of a major South Korean electronics manufacturer in February 2026.” Symantec’s Threat Hunter Team believes the attacker was intelligence-driven, focusing on industrial and intellectual property theft, government espionage, and access to downstream customers or corporate networks. Seedworm's campaign relied heavily on DLL sideloading, a common technique in which legitimate, signed software loads malicious DLLs. Two of the binaries leveraged in the attack are ‘fmapp.exe,’ a legitimate Foremedia audio utility, and ‘sentinelmemoryscanner.exe,’ a legitimate SentinelOne component. The malicious DLLs (fmapp.dll and sentinelagentcore.dll) contained ChromElevator, a commodity post-exploitation tool that steals data stored in Chrome-based browsers. Symantec also found that PowerShell, used in previous Seedworm attacks, was still heavily used in the recent incidents, although the payloads were controlled through Node.js loaders rather than directly.