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Stormous is a cybercriminal and hacktivist group active since 2021, associated with information theft, website defacement, ransomware, and public data-leak extortion. It presents itself as an Arabic-speaking hacker group. Stormous publicly supported the Russian government during Russia’s invasion of Ukraine and announced its intention to target Ukrainian government institutions, including the foreign ministry. Its political alignment does not establish Russian origin or state sponsorship. Stormous targets commercial and public-sector organizations across multiple regions. Its victim listings include manufacturing, healthcare, apparel, consumer-services, and food and beverage organizations. The group publicizes victim claims and stolen information through Telegram and dedicated leak sites. Not all claims represent verified compromises: its purported attack and leak involving the Polish Commodity Exchange Clearing House were false. Its documented tooling includes PHP-based malware combining backdoor and ransomware functionality, targeting PHP-enabled web servers and vulnerable web applications. These components support remote access, deployment of additional payloads, file encryption, and delivery of ransom notes. Information theft and publication are central to its extortion activity, although early operations lacked clear evidence of ransomware deployment. Stormous subsequently collaborated with GhostSec on GhostLocker-based double-extortion attacks and jointly developed the StmX|GhostLocker ransomware-as-a-service program. Stormous and GhostSec also joined The Five Families, a coalition comprising ThreatSec, GhostSec, Stormous, BlackForums, and SiegedSec. Stormous combines politically aligned messaging with criminal extortion; a single dominant motivation is not established.
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Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Geographies tied to known operations.
25 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
4 malware families attributed to this actor across reporting.
14 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Stormous was listed among other ransomware groups observed in Japan during the first half of 2026.
Group blending hacktivist framing with financially motivated extortion, increasingly claiming industrial and manufacturing victims through data theft-focused operations.
Mentioned only in related content as a separate cybercrime gang previously claiming a Coca-Cola breach.
Related Posts ... Stormous ATTACKS Swedish University
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.