Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Malware Newsletter Operation QUICSILVER: China-Nexus Actor Targets Myanmar Diplomats via VHD-Delivered Go Backdoor FTP Banners: The New Dead Drop Resolver Delivering Novel RATs The State of AI-Enabled Malware August 2026: From Brand Abuse to Agentic […]

A China-nexus threat actor has been observed using a Go-based backdoor, dubbed HOOKEDGE, to target diplomatic and defense organizations in Myanmar. The backdoor is delivered via VHD files as part of an operation named QUICKSILVER. This activity is consistent with the tactics of the Russian APT group BlueDelta, which has also been seen employing HOOKEDGE against similar targets.
In other recent cybersecurity developments, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) has updated its Known Exploited Vulnerabilities catalog. New additions include flaws affecting ownCloud, the Linux Kernel, JFrog Artifactory, Red Hat, Ajax.NET Professional, Microsoft SQL Server, and Citrix NetScaler. CISA also issued a warning to water utilities, urging them to identify and secure any exposed Programmable Logic Controllers (PLCs) before they can be exploited by attackers. This follows a CISA Red Team exercise that successfully compromised two critical infrastructure organizations.
Separately, the FBI has taken action against China-linked hacking platforms QScan and QTRouter, which were reportedly used in attacks against critical infrastructure.
Ransomware groups continue to be active, with the Rhysida group claiming an attack on the Berlin government ahead of an upcoming vote. Meanwhile, hackers are actively probing PaperCut servers, with reports indicating that 47% of affected servers remain unpatched for a recently disclosed zero-day vulnerability. An emergency patch has been released for this flaw, which is under active exploitation.
In the United Kingdom, airport operator MAG experienced a cyberattack that exposed the data of 8.7 million customers across three airports. Elsewhere, the Dark Caracal group has deployed new Go malware that incorporates an Ethereum-based command and control (C2) fallback mechanism.
Other notable incidents include a breach at Love Electric, where records for 877,000 drivers are being offered for sale. Australian police have also charged two individuals in connection with credential theft related to TeamPCP.
Finally, OpenAI has reportedly banned Russian ChatGPT accounts that were found to be supporting a covert influence operation.
A weakness has been identified in Tenda CP3 27.5.57.101. This issue affects some unknown processing of the file Net/NetCheckPing.cpp. This manipulation of the argument interface_name/host causes os command injection. The attack can be initiated remotely.
A security flaw has been discovered in Tenda CP3 27.5.57.101. This vulnerability affects the function SystemAsh of the file Apis/system.c of the component Kylin. The manipulation of the argument AlarmVoiceURL results in os command injection. It is possible to launch the attack remotely.

Attackers are exploiting a new unpatched vulnerability in Magento Open Source and Adobe Commerce that lets them run malicious code on an online store's server without logging in, Dutch e-commerce security company Sansec said in an advisory published on September 5. Sansec, which discovered the flaw and named it StyleSmuggler, said attacks started on September 4. "Sansec is publishing early
In BPF instructions that load/store a value from/to a scratch memory register the register index is an unsigned 32-bit integer and must not exceed 15, but libpcap BPF interpreter does not validate the value. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading and writing the OS process memory in the 16GiB starting at the current stack frame on 64-bit architectures and in the entire address space on 32-bit architectures.

Attackers are exploiting two new PaperCut flaws to steal credentials and gain privileged access in education-sector attacks across the U.S. and Europe. Attackers are exploiting two recelty disclosed PaperCut flaws, CVE-2026-81578 and CVE-2026-82078, in attacks targeting schools and other education organizations in the U.S. and Europe, as reported by TheHackerNews. Arctic Wolf researchers observed

JetBrains is urging Cadence users to revoke and rotate all credentials following a security incident last month in which unidentified threat actors exploited a recently disclosed critical vulnerability in TeamCity to breach its own environment. "Cadence users should immediately revoke or rotate all credentials and secrets that may have been used to run their Cadence executions," JetBrains said.