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FlimKit Coughs Up More Malvertising

ID: 778f2da3-68f2-53c9-930e-9fdda1663518

STIX ID: report--778f2da3-68f2-53c9-930e-9fdda1663518

Feed Name: Zscaler Security Research Blog

Threat Score
68/100

Date Published: 2025-04-02

Date Updated: 2026-05-01

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FlimKit is an exploit kit distributed via malvertising/popunder ads that exploits Java vulnerabilities (notably CVE-2013-2423) to drop JAR files which lead to malicious executables—typically ZBOT variants. The report lists newly observed drop domains (e.g., 9euei.info, kvmhja.info, sdjeu7.info, adiwep.info, d0e9ue.info, idueya.info, sdioep.info, sieod.info) and ad services (yieldmanager.net, smxchange.com, glispa.com) that redirected users to the exploit kit, indicating an active malvertising campaign and providing IoCs and TTPs for detection and mitigation.

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