NeedleStealer is a malware family tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.
NeedleStealer is a malware family tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed July 28, 2026; most recent activity July 28, 2026.
The CastleLoader malware campaign has evolved, deploying the NeedleStealer framework to steal cryptocurrency wallet seed phrases and hijack browser sessions. This operation targets Windows devices through fake software…
NeedleStealer is a malware family tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.
The most recent intelligence report mentioning NeedleStealer on ThreatCluster is dated July 28, 2026.
Across ThreatCluster reporting, NeedleStealer most frequently co-occurs with Malware, CastleLoader Campaign, CastleLoader.
The most significant recent cluster is “CastleLoader Campaign Uses NeedleStealer to Target Crypto Users” (2 articles · Updated July 28, 2026). NeedleStealer appears across 1 threat cluster in total, listed above with sources.
NeedleStealer appears in 1 intelligence report mention across 1 deduplicated threat cluster, aggregated from 17,000+ monitored sources.