OctLurk and SilkLurk: newly identified tailored backdoors in cyber-espionage campaign in Central Asia

Introduction We have been tracking two new backdoors, OctLurk and SilkLurk , observed in attacks against government organizations primarily in Central Asia since January 2025. Identified victims are located in Afghanistan, Kyrgyzstan, Tajikistan, Uzbekistan, Kazakhstan, and the Syrian Arab...

GoSerpent: a persistent threat evolves with sophisticated data collection and exfiltration

Introduction In February 2026, we discovered a set of malicious activities that had been ongoing since late 2025. These activities involved a RAT module written in Go with proxy capabilities, which served as the main stage of the attack. The attack targeted government and diplomatic entities in...

China-Linked UAT-8099 Targets IIS Servers in Asia with BadIIS SEO Malware

Cybersecurity researchers have discovered a new campaign attributed to a China-linked threat actor known as UAT-8099 that took place between late 2025 and early 2026. The activity, discovered by Cisco Talos, has targeted vulnerable Internet Information Services IIS servers located across Asia, bu...

Abandoned Sogou Zhuyin Update Server Hijacked, Weaponized in Taiwan Espionage Campaign

An abandoned update server associated with input method editor IME software Sogou Zhuyin was leveraged by threat actors as part of an espionage campaign to deliver several malware families, including C6DOOR and GTELAM, in attacks primarily targeting users across Eastern Asia. "Attackers employed...

New Backdoor Auto-color Linux Targets Systems in US and Asia

Auto-color: New Linux backdoor malware targeting the US and Asia. Learn about its advanced evasion, persistence, and detection…...

Researchers Uncover SideWinder's Latest Server-Based Polymorphism Technique

The advanced persistent threat APT actor known as SideWinder has been accused of deploying a backdoor in attacks directed against Pakistan government organizations as part of a campaign that commenced in late November 2022. "In this campaign, the SideWinder advanced persistent threat APT group us...