Iran-Linked MuddyWater Poses as Ransomware Gang to Mask Cyber Espionage
An NCC Group report warns state-backed hackers are attempting to hide activity by posing as ransomware groups and deploying commercially available malware
Coverage of reported MuddyWater incidents, infrastructure analysis, disruption efforts, and defensive guidance, with attribution kept cautious.
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Background for this topic.
MuddyWater is a name used in public reporting for a tracked threat actor or intrusion set. Attribution of individual incidents can vary, but researchers have associated the name with campaigns using phishing, malicious documents or links, scripting such as PowerShell, and legitimate remote-access or administration tools. These methods can make activity resemble routine user or administrator behavior, complicating detection and confident attribution.
For defenders, the relevant risks include credential theft, execution through user-opened content, and persistence through remote-management software. Security teams should apply phishing-resistant multifactor authentication where feasible, restrict or monitor remote-access tools, log PowerShell and other script execution, and inspect unusual outbound connections or newly created accounts. Patch internet-facing systems and review exposure to vulnerabilities cited in threat reporting, but validate reported indicators before treating them as proof of MuddyWater activity. During an investigation, preserve endpoint, identity, email, and network telemetry so analysts can distinguish this cluster from unrelated intrusions.
Weekly headline count for the current query.
An NCC Group report warns state-backed hackers are attempting to hide activity by posing as ransomware groups and deploying commercially available malware
The Iranian hacking group known as MuddyWater has been linked to a new campaign affecting at least nine organizations across nine countries on four continents in the first quarter of 2026
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. [...]
The MuddyWater Iranian hackers disguised their operations as a Chaos ransomware attack, relying on Microsoft Teams social engineering to gain access and establish persistence. [...]
The Iranian state-sponsored hacking group known as MuddyWater (aka Mango Sandstorm, Seedworm, and Static Kitten) has been attributed to a ransomware attack in what has been described as a "false flag" operation
The definitive brief on the Stryker attack. Two MOIS teams, one kill chain: MuddyWater pre-positioned for weeks, Handala pulled the trigger via Intune. Detection Pack v3 ships 25 rules covering every phase. Full IOC set and configuration hardening included.
The definitive brief on the Stryker attack. Two MOIS teams, one kill chain: MuddyWater pre-positioned for weeks, Handala pulled the trigger via Intune. Detection Pack v3 ships 25 rules covering every phase. Full IOC set and configuration hardening included.
Five new Sigma rules and KQL queries for Microsoft Sentinel covering MuddyWater pre-positioning IOCs, the PIM Authentication Context gap, three-layer bulk wipe prevention, stale session detection, and Rclone exfil to MuddyWater cloud infrastructure.
A bank, an airport, a non-profit and the Israeli branch of a US software company were among the targets of this new MuddyWater campaign
New research from Broadcom's Symantec and Carbon Black Threat Hunter Team has discovered evidence of an Iranian hacking group embedding itself in several U.S. companies' networks, including banks, airports, non-profit, and the Israeli arm of a software company
MOIS-linked MuddyWater crew has a new, custom implant An Iranian cyber crew believed to be part of the Iranian Ministry of Intelligence and Security (MOIS) has been embedded in multiple US companies' networks - including a bank, software firm, and airport, among others - since the beginning of February, with more activity in the days following the US and Israeli military strikes, according to security researchers.…
Iranian Cyberespionage Group MuddyWater Goes DarkPhysical effects rather than cyber strikes are triggering Middle Eastern connectivity problems during day four of a sustained U.S. and Israeli bombing campaign against Iran. Iran is responding with drone and missile attacks targeting U.S. military as well as British bases in Bahrain, Cyprus.
Also, More ShinyHunters Breaches, North Korea Laptop Farm Operator SentencedThis week, Finland's Aleksanteri Kivimäki sentenced. ShinyHunters breaches. Laptop farm rancher sentenced. Oregon state agency hacker sentenced. African scammers arrested. MuddyWater AI-assisted hacks. Advantest ransomware incident, SolarWinds and Microsoft patches. FileZen flaw. QualDerm breach.
The long-active Iranian threat group debuted various attack strains and payloads in attacks against organizations in the Middle East and Africa.
The Iranian hacking group known as MuddyWater (aka Earth Vetala, Mango Sandstorm, and MUDDYCOAST) has targeted several organizations and individuals mainly located across the Middle East and North Africa (MENA) region as part of a new campaign codenamed Operation Olalampo
Also, Venezuela Cyberattack, Endesa Confirms Breach and Telegram IP LeakThis week, a software flaw caused the Verizon outage. U.S. cyberattack in Venezuela. ICE identities published online. BreachForums users leaked. Spanish energy provider Endesa data breach. Telegram privacy risk. A MuddyWater upgrade. Dutch man sentenced for hacking a maritime port. A ServiceNow patch.
The Iranian threat actor known as MuddyWater has been attributed to a spear-phishing campaign targeting diplomatic, maritime, financial, and telecom entities in the Middle East with a Rust-based implant codenamed RustyWater
Also, Dutch Defend the Nexperia Takeover, Hikvision Challenges FCC, Qilin StrikesThis week, likely North Korean hackers exploited React2Shell. The Dutch government defended its seizure of Nexperia. Prompt injection may be here to stay. Hikvision pushed back against a new U.S. crackdown. Qilin claimed it hacked Scientology, Microsoft Patch Tuesday and MuddyWater activity.
The Iranian hacking group known as MuddyWater has been observed leveraging a new backdoor dubbed UDPGangster that uses the User Datagram Protocol (UDP) for command-and-control (C2) purposes
Iran's top state-sponsored APT is usually rather crass. But in a recent spate of attacks, it tried out some interesting evasion tactics, including delving into Snake, an old-school mobile game.