Iran-linked MuddyWater deploys Dindoor malware against U.S. organizations
Iran-linked APT MuddyWater targeted U.S. organizations, deploying the new Dindoor backdoor across sectors including banks, airports, and nonprofits. Broadcom’s Symantec Threat Hunter Team uncovered a campaign by the Iran-linked MuddyWater (aka SeedWorm, TEMP.Zagros, Mango Sandstorm, TA450, and Static Kitten) APT group targeting several U.S. organizations. “Activity associated with Iranian APT group Seedworm has been spotted on the networks of multiple […]

Broadcom’s Symantec Threat Hunter Team uncovered a campaign by the Iran-linked MuddyWater (aka SeedWorm, TEMP.Zagros, Mango Sandstorm, TA450, and Static Kitten) APT group targeting several U.S. organizations.
“Activity associated with Iranian APT group Seedworm has been spotted on the networks of multiple U.S. companies. The activity began in February 2026 and has continued in recent days.” reads the report published by Broadcom’s Symantec.
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