S3Siphon is a malware family tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.
S3Siphon 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.
A vishing campaign utilizing Microsoft Teams has been identified, targeting organizations through fake IT support calls. Attackers persuade victims to open Quick Assist links, enabling remote access to systems. The…
S3Siphon is a malware family tracked by ThreatCluster, appearing in 1 threat cluster built from 1 intelligence report mention.
The most recent intelligence report mentioning S3Siphon on ThreatCluster is dated July 28, 2026.
Across ThreatCluster reporting, S3Siphon most frequently co-occurs with Malware, Phishing, BlindDoor, GoGRPC, Mythic, among 12 tracked related entities.
The most significant recent cluster is “Microsoft Teams Vishing Campaign Deploys GoGRPC Backdoor” (2 articles · Updated July 28, 2026). S3Siphon appears across 1 threat cluster in total, listed above with sources.
S3Siphon appears in 1 intelligence report mention across 1 deduplicated threat cluster, aggregated from 17,000+ monitored sources.