After years of dominance in #ESET’s top #infostealer statistics, the era of #AgentTesla has come to an end. It finished H1 2025 in fourth place, its numbers having decreased by 57%. The reason? It is no longer under active development.
The threat actors behind Agent Tesla have reportedly lost access to the servers with the malware’s source code. A successor appeared almost immediately – another #MaaS threat, known as #SnakeStealer or #SnakeKeylogger, has claimed the number one spot.
Recommended as a suitable replacement directly in Agent Tesla’s Telegram channel, SnakeStealer now takes up almost a fifth of all infostealer detections registered by ESET telemetry. Between H2 2024 and H1 2025, its detections more than doubled.
If you want to find out more information about this changing of the guard in the infostealer threat landscape, head on over to #ESETThreatReport: https://welivesecurity.com/en/eset-research/eset-threat-report-h1-2025