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FortiGuard Labs describes a large-scale, global campaign that uses heavily obfuscated JScript droppers to launch an AutoIt/Lua-based loader with low detection rates. The loader delivers several popular RATs and infostealers, including a version of Snake Keylogger. The infection chain relies on business email compromise tactics, impersonat…
FortiGuard Labs analyzed a TrickBot variant that carries command-and-control (C2) traffic over DNS tunneling, embedding encoded data in DNS queries and responses, instead of the HTTP used by earlier variants. The malware persists through Windows Task Scheduler, stores its configuration in NTFS Alternate Data Streams, and hinders analysis …
FortiGuard Incident Response reports a supply chain attack on the QuickFox Windows application, whose trojanized components deployed the FDMTP implant to users. QuickFox's user base is mainly Chinese international students and expats. Affected Windows versions are those later than v3.0.35 and earlier than v3.55.6. QuickFox has removed the…
FortiGuard Labs describes Evooo1Bot, a Linux botnet that embeds the Mirai DDoS engine in a more modular and capable framework. It uses encrypted C2 communications, layered string obfuscation (AES-256-CTR, ChaCha20, XOR-based key derivation) and a 28-command remote administration interface. It also ships an integrated exploit arsenal again…
FortiGuard Labs describes an LLMjacking incident in which an AWS account was compromised through a leaked, long-lived IAM access key with AdministratorAccess permissions. The operator subscribed to one or more foundation models through AWS Marketplace and invoked them through Amazon Bedrock, generating inference charges against the victim…
FortiGuard Labs analyzed a Casbaneiro banking trojan campaign targeting users in Latin America. The campaign applies access restrictions at several stages to keep the malware away from analysis tools: the download page, the HTA downloader and Casbaneiro itself. Casbaneiro sends different types of stolen data to separate servers and uses a…
FortiGuard Labs analyzed a SectopRAT variant that is embedded in legitimate software to evade detection. The malware uses a multi-stage loader to extract its payload from files, then applies API hashing, indirect function calls and in-memory loading to run the final .NET payload. Once running, it sets up encrypted communication with its C…
FortiGuard Labs describes ClingSTUN, a Linux back-connect proxy backdoor that keeps persistent access and turns compromised devices into remotely controlled proxy nodes. It combines persistence, process termination, watchdog manipulation and remote command execution. It also uses legitimate public STUN servers for NAT traversal, to discov…
Cisco published a September 2026 hardening release for Cisco Secure Firewall ASA, Secure Firewall Threat Defense (FTD) and Secure Firewall Management Center (FMC) software. It addresses multiple vulnerabilities found during an internal security review. Cisco rates the advisory Critical and states that two of the issues are known to be act…
Cisco disclosed CVE-2026-20154, a high-severity vulnerability in the system rate-limiting process for syslog message 419002 in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software. An unauthenticated, remote attacker can cause high CPU utilization on an affected device, r…
Cisco updated its advisory for CVE-2024-20260, a denial-of-service vulnerability in the VPN and management web servers of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software. The original version covered only the ASAv and FTDv virtual models, but Cisco later found that a…
Cisco has disclosed multiple vulnerabilities in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) that could let a remote attacker access or manipulate data, obtain sensitive information, or cause a reload of certificate and key material on an affected device. The advisory (cisco-sa-ise-multiauth-bypa…
Cisco published a Software Security Hardening Release advisory for Cisco IOS XE Software. It addresses multiple vulnerabilities found during an internal security review and internal testing. Cisco states the flaws are not known to be actively exploited. It grouped the issues by Common Weakness Enumeration (CWE) class and assigned a single…
Cisco disclosed a critical authentication bypass, CVE-2026-76504, in the API session-based authentication management of Cisco Catalyst SD-WAN Manager. An unauthenticated, remote attacker can send a crafted HTTP request and gain access to the API with the privileges of the admin user. Cisco has released software updates and states that no …
Cisco published the NX-OS Software Security Hardening Release: October 2026 advisory (cisco-sa-hardening-nxosw1-cWzSbtR) on 7 October 2026. It covers multiple vulnerabilities found by the Cisco NX-OS engineering team during an internal security review. Cisco rates the security impact as Critical and says the flaws are not known to be acti…
Cisco published a security advisory covering multiple vulnerabilities in the web-based management interface and API endpoints of Cisco License On-Prem, formerly Cisco Smart Software Manager On-Prem (SSM On-Prem). A remote attacker could exploit them to gain unauthorized access, access sensitive information, cause a denial of service (DoS)…
Cisco disclosed CVE-2026-20173, a medium-severity vulnerability in Cisco NX-OS Software that lets an unauthenticated, remote attacker exhaust system resources and cause a denial of service (DoS). The flaw exists because rate limiting is improperly applied to some protocols. The DoS condition clears without manual intervention soon after t…
Cisco published its October 2026 security hardening release for the Application Policy Infrastructure Controller (APIC). It follows an internal security review that found multiple vulnerabilities. Cisco rates the Security Impact Rating as Critical and assigns CVE-2026-76498, CVE-2026-76499 and CVE-2026-76500. The flaws were found during i…
Cisco disclosed multiple critical vulnerabilities in the Next Generation OAM (NGOAM) feature of Cisco NX-OS Software, affecting Cisco Nexus 3000 Series and Nexus 9000 Series switches. An unauthenticated, remote attacker could execute arbitrary code with root privileges or cause a denial of service (DoS) on an affected device. The flaws ar…
Cisco disclosed CVE-2026-20038, a medium-severity vulnerability in the endpoint group (EPG) contract functionality of Cisco Nexus 9000 Series Fabric Switches in ACI Mode. An unauthenticated, remote attacker could bypass configured EPG contracts, undermining segmentation policy enforced by the fabric. The flaw stems from improper control w…
