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Shady Squirrel is a Russian-speaking, financially motivated cybercriminal traffic-broker and malicious-domain dropcatch operator active since at least July 2023. The actor acquires expired domains, including domains formerly used in malicious infrastructure or legitimate web services, to capture residual traffic from previously compromised websites. It has acquired more than 700 domains. Shady Squirrel uses custom JavaScript injections, Keitaro-based traffic-distribution infrastructure, server-side fingerprinting, and referrer-based filtering to selectively serve malicious or monetized content to likely human victims while concealing activity from bots and automated scanners. Observed routing destinations include initial-access brokers, affiliate marketing services, online gambling, tech-support scams, and the SocGholish fake-update ecosystem. In 2026, its traffic delivery supported a major resurgence of SocGholish following Operation Endgame disruption activity. Shady Squirrel has also been observed conducting supply-chain-style abuse of an expired content-delivery service domain and injecting code directly into WordPress theme files. Tech-support scam traffic was selectively delivered to Windows users arriving through search engines, including victims in Japan and the United States.
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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.
Attributed origin per open-source reporting.
23 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
1 malware family attributed to this actor across reporting.
12 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Named as another group observed acquiring and abusing expired domains; the article generally associates such groups with redirecting existing traffic to malware, advertising fraud, or scams.
Tracked as another group monetizing expired domains by capturing residual traffic from previous owners and redirecting it to ad networks, scam sites, and other cybercriminals.
Russophone cybercriminal dropcatch actor active since at least July 2023 that reacquires expired domains, uses custom JavaScript injections and Keitaro TDS, fingerprints traffic, and redirects victims to downstream scams and malware including SocGholish.
A scavenger actor that acquires expired malicious domains, inherits infection traffic, and routes that traffic to SocGholish and tech support scam networks.
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.