Quasar Linux (QLNX) – Inside a Full-Featured Linux RAT

In previous research, Trend Micro have demonstrated how AI can be used to improve detection accuracy when new malware families emerge, particularly those that reuse or share code from open-source repositories. In this blog entry, Trends Micro researchers present another Read More …

Operation Zero Disco: Attackers Exploit Cisco SNMP Vulnerability to Deploy Rootkits

TrendResearch has detected an operation where attackers exploited a Cisco Simple Network Management Protocol (SNMP) vulnerability to install a rootkit on vulnerable network devices. The SNMP exploit referenced in Cisco’s latest advisory is CVE-2025-20352, which affects both 32-bit and 64-bit Read More …

How BPF-Enabled Malware Works

Berkeley Packet Filtering (BPF) is a kind of technology that allows programs to effectively execute code in the kernels of modern operating systems, such as Linux and Berkeley Software Distribution (BSD) variants. Soon, Windows will also add support for BPF. Read More …

Hunting for A New Stealthy Universal Rootkit Loader

In one of their recent threat hunting investigations, Trend Micro researchers came across an interesting new threat activity cluster that we initially thought was a false positive detection for a Microsoft signed file. However, this turned out to be a Read More …

Scranos: New Rapidly Evolving Rootkit-Enabled Spyware Discovered

A new powerful rootkit-enabled spyware operation has been discovered wherein hackers are distributing multifunctional malware disguised as cracked software or trojanized app posing as legitimate software like video players, drivers and even anti-virus products. While the rootkit malware—dubbed Scranos—which was first Read More …