Infoblox and Confiant Detail Keitaro Abuse in AI-Driven Scams

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Summary

Infoblox and Confiant’s four-month study identified about 15,500 domains used for malicious Keitaro instances, linking the tracker to AI-themed investment scams, tech-support fraud and phishing; vendor reports led to account and infrastructure takedowns.

Key points

  • The researchers identified about 15,500 domains used for malicious Keitaro instances during the study period; about 9,000 were registered before use.
  • Investment scams, especially AI-themed schemes using generated content and deepfakes, were the most common threat category observed.
  • Operators use Keitaro’s conditional routing and fingerprinting—such as by location, user agent, ASN and referrer—to show lures to selected visitors and benign content to others.
  • Campaign traffic came through compromised websites, spam, social media and advertising networks.
  • FaiKast used AI-generated deepfake videos impersonating news figures to promote fraudulent investment schemes; researchers observed it entering the ad ecosystem primarily through Bigo Ads.
  • FishSteaks campaigns used multi-stage giveaway pages to funnel visitors to phishing sites designed to collect personal and credit card information.
  • The researchers say their abuse reports led to more than a dozen threat-actor accounts being canceled and infrastructure being removed; they also verified that TA2726 and other actors used illicit Keitaro copies.

Article Details

Publisher
Infoblox
Report Period
Four months beginning 2025-10-01; abuse reporting since 2025-08.
Scope
Malicious use of Keitaro Tracker, including AI-themed investment scams, tech-support scams, and other fraud campaigns.
Sample Size
Thousands of malicious Keitaro instances; approximately 15,500 domains were actively used.
Key Statistics
  • About 9,000 of the approximately 15,500 domains were registered before use.
  • Researchers reported more than 100 domains to Keitaro since 2025-08.
  • More than a dozen threat-actor accounts were canceled following abuse reports.
  • Confiant reports visibility into close to 90 billion ad impressions per month across publisher sites.
Recommendations
  • Continue coordinated abuse reporting and collaboration with Keitaro/Apliteni; the report says this led to account cancellations and infrastructure removals.
  • Use observed Keitaro Tracker activity as a signal for identifying related campaign delivery chains.

Indicators of compromise

TypeIndicatorContext
DOMAIN5000-giftcardswb[.]ruFishSteaks giveaway-scam domain observed active throughout October and sporadically in November.
DOMAINbitget-passive-income[.]comDomain listed as an additional example used by the same unnamed investment-scam actor as the related domains in its indicator group.
DOMAINcryptopassive-swiss-switzerland[.]orgDomain identified as used by an unnamed actor running investment scams.
DOMAINempowerementplan[.]comWickedWally debt-relief scam domain used with deceptive advertising and a fake chatbot lure.
DOMAINfin-zen-ai[.]comDomain identified as used by an unnamed actor's investment scam featuring AI-powered trading platforms.
DOMAINfinancialmatcher[.]comDomain listed among WickedWally debt-relief scam indicators.
DOMAINfunds-treasure[.]comDomain listed among FaiKast gen-AI broadcast-persona impersonator campaign indicators.
DOMAINfzclbsmartcbeaa[.]comDomain listed among FaiKast gen-AI broadcast-persona impersonator campaign indicators.
DOMAINlumitexaihub[.]comDomain listed among infrastructure used by the same unnamed actor's AI-themed fake-news investment campaigns.
DOMAINlumitexchainai[.]comDomain identified as used in an unnamed actor's AI-themed fake-news investment campaigns.
DOMAINlumitexsyncai[.]comDomain listed among infrastructure used by the same unnamed actor's AI-themed fake-news investment campaigns.
DOMAINnorthernavenue[.]infoDomain listed among FaiKast gen-AI broadcast-persona impersonator campaign indicators.
DOMAINstar-boostmedia[.]comDomain used in an unnamed actor's campaign infrastructure, including locale-controlled subdomains for scam landing pages.
DOMAINsynatra-nexus[.]comDomain listed among infrastructure used by an unnamed actor's AI-powered investment scam.
DOMAINtmgmaiwwta[.]comDomain listed among FaiKast gen-AI broadcast-persona impersonator campaign indicators.
DOMAINtradingideasai[.]comDomain used by an unnamed investment-scam actor; its subdomains were used to select landing-page languages.
DOMAINtryhappycards[.]ruFishSteaks giveaway-scam domain; the campaign used Keitaro and a phishing page to collect personal and credit-card information.
DOMAINwealthlift[.]clickDomain listed among FaiKast gen-AI broadcast-persona impersonator campaign indicators.
DOMAINyieldup[.]chDomain listed among infrastructure used by an unnamed actor running investment scams.
DOMAINyourluckycard[.]ruDomain listed among FishSteaks giveaway-scam indicators.
HOSTNAMEau[.]lpa1[.]star-boostmedia[.]comCampaign hostname listed among domains used for AI-themed fake-news scams.
HOSTNAMEpl1[.]tradingideasai[.]comLocale-controlled hostname used to serve a Polish-language investment-scam landing page.

MITRE ATT&CK

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Threat Actors

Malware

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