Doctor Web’s Q3 2025 virus activity review

Doctor Web’s Q3 2025 overview reports a slight drop in total detections but an increase in unique threats, highlighting prevalent adware and ad-displaying trojans, several encoder ransomware families (notably Trojan.Encoder.35534), Android backdoors used to spy on businesses (Android.Backdoor.916.origin), a targeted Scaly Wolf campaign leveraging the Updatar backdoor, exploitation of DLL Search Order Hijacking and Office CVEs in email-borne threats, growth in fake Telegram and finance-themed fraudulent sites, and dozens of malicious/unwanted apps discovered on Google Play.