A fake FileZilla site hosts a malicious download

A trojanized copy of the open-source FTP client FileZilla 3.69.5 is circulating online. The archive contains the legitimate FileZilla application, but with a single malicious DLL added to the folder. When someone downloads this tampered version, extracts it, and launches FileZilla, Windows loads...

New Dohdoor malware campaign targets education and health care

Cisco Talos discovered an ongoing malicious campaign since at least as early as December 2025 by a threat actor we track as "UAT-10027," delivering a previously undisclosed backdoor dubbed "Dohdoor." Dohdoor utilizes the DNS-over-HTTPS DoH technique for command-and-control C2 communications and h...

WIRTE Leverages AshenLoader Sideloading to Install the AshTag Espionage Backdoor

An advanced persistent threat APT known as WIRTE has been attributed to attacks targeting government and diplomatic entities across the Middle East with a previously undocumented malware suite dubbed AshTag since 2020. Palo Alto Networks Unit 42 is tracking the activity cluster under the name Ash...