Search: “netfilter”

Axoflow Launches AxoDetect, Bringing Detection Into the Pipeline and Making the SIEM Optional

Axoflow launches AxoDetect in early access, running customer Sigma rules in the data pipeline to cut SIEM ingest costs and make full SIEM feeding optional.

Axoflow announced AxoDetect, now in early access and unveiled at Splunk .conf26, which runs customer Sigma rules directly in the security data pipeline on normalized data. Alerts travel to the SIEM while full-fidelity logs land in AxoLake, a low-cost on-prem-capable security data lake. The company cites a global industrial company cutting SIEM costs 50% and mean time to resolution 85%, and a government agency cutting data volume 80%.

GBHackers·11:58 UTC · 3h agoTools 2 sources

USN-8730-1: Linux kernel vulnerability

Ubuntu issued USN-8730-1 fixing Linux kernel flaws in IPv6 networking and Netfilter that could allow system compromise.

Ubuntu released USN-8730-1 addressing a security issue discovered in the Linux kernel. The update corrects flaws in the IPv6 networking and Netfilter subsystems. Ubuntu states an attacker could possibly use the issue to compromise the system.

Ubuntu Security Notices·Sep 7, 09:12 UTC · 9d agoAdvisory 6 sources

Advanced URL Filtering Archives

Palo Alto Networks markets Advanced URL Filtering as combining a malicious URL database with real-time ML and DL web protection.

The Unit 42 blog page is a product category archive for Advanced URL Filtering. The product description states it combines a malicious URL database with a real-time web protection engine powered by machine learning and deep learning models. No research findings, incidents, or vulnerabilities are discussed.

Palo Alto Unit 42·Sep 8, 14:27 UTC · 8d agoIndustry 6 sources

USN-8761-1: Linux kernel (Azure) vulnerabilities

Ubuntu patches multiple Linux kernel (Azure) flaws across ARM64, Bluetooth, Netfilter, NTFS3, SMB and other subsystems.

Ubuntu security notice USN-8761-1 corrects several security issues in the Linux kernel for Azure, spanning ARM32, ARM64, and PowerPC architectures plus subsystems including Bluetooth, Netfilter, EFI core, GPU drivers, InfiniBand, SCSI, NTFS3, and SMB. An attacker could possibly use these flaws to compromise the system.

Ubuntu Security Notices·Sep 15, 09:42 UTC · 1d agoAdvisory 2 sources

New infosec products of the week: August 21, 2026

Weekly product roundup covering NETSCOUT outbound DDoS mitigation, F5 AI Gateway enhancements, Intezer Workflows, and Tufin TOS 5.3.

NETSCOUT extended Adaptive DDoS Protection to automatically mitigate outbound attack traffic for service providers. F5 enhanced its AI Gateway and integrated it into the F5 AI Security Platform for unified AI access governance. Intezer launched Workflows, native automation and response inside its platform without a separate SOAR, and Tufin released Orchestration Suite 5.3 with AI-powered Segmentation Intelligence for multi-vendor environments.

Help Net Security·Aug 21, 00:00 UTC · 26d agoTools

New NatJack Attacks Hijack TCP Sessions and Spoof DNS by Manipulating NAT Tables

The Hacker News·Aug 7, 10:58 UTC · Aug 7, 2026Exploit / PoC in the wildCVE-2026-56181CVE-2026-63913

TCRF taken offline by DDoS attack after Claude user ban

The Cutting Room Floor game wiki was taken offline by a DDoS attack after a user leveraging Claude was banned.

The Cutting Room Floor (TCRF), a wiki documenting unused video game content, was knocked offline by a distributed denial-of-service attack. The attack reportedly followed moderation action banning a user who was using Anthropic's Claude. The incident highlights friction between community sites and AI-assisted users and tools.

Lobsters · security·Aug 28, 21:26 UTC · 18d agoAI safety & security in the wild

Microsoft September 2026 Patch Tuesday fixes 966 flaws, 2 zero-days

Microsoft's September 2026 Patch Tuesday fixes a record 966 flaws, including two Windows zero-days actively exploited to gain SYSTEM privileges.

Microsoft's September 2026 Patch Tuesday addresses a record 966 vulnerabilities, including 105 rated Critical, 81 of them remote code execution bugs. Two zero-days were actively exploited: a Windows Update Stack link-following flaw and a Windows ALPC heap-based buffer overflow, both allowing local elevation to SYSTEM privileges. The ALPC flaw was reported by Volexity and Proofpoint researchers, while the Update Stack flaw was credited to Romain Deperne and the Microsoft Threat Intelligence Centre. Microsoft shared no details on how the flaws were exploited in attacks.

BleepingComputer·Sep 8, 18:18 UTC · 7d agoAdvisory in the wildCVE-2026-69805CVE-2026-58649CVE-2026-69806+27 CVEs1

TerminalFix campaign deploys a reverse tunnel through multistage intrusion

Microsoft Threat Intelligence details the TerminalFix campaign, which uses fake CAPTCHA prompts, DLL sideloading, and reverse tunnels in multistage intrusions.

Microsoft Threat Intelligence published analysis of a ClickFix-style campaign dubbed TerminalFix. The intrusion chain relies on fake CAPTCHA social engineering and DLL sideloading, and the attackers deploy a reverse tunnel to maintain access through a multistage intrusion. Microsoft released detections and threat hunting guidance for defenders.

Microsoft Security Blog·Aug 29, 03:43 UTC · 18d agoThreat actor in the wild

USN-8748-1: Linux kernel (NVIDIA) vulnerabilities

Ubuntu released USN-8748-1 patching multiple Linux kernel (NVIDIA) vulnerabilities across networking, file system, and crypto subsystems.

Ubuntu issued security notice USN-8748-1 fixing several Linux kernel vulnerabilities affecting the NVIDIA Tegra memory controller driver, hardware crypto device drivers, and network drivers, among others. Affected subsystems include GFS2, OCFS2, and SMB file systems, B.A.T.M.A.N. meshing, Ceph, Netfilter, Open vSwitch, IPv4/IPv6, RxRPC, SCTP, and TIPC. An attacker could potentially exploit these flaws to compromise the system.

Ubuntu Security Notices·Sep 10, 15:32 UTC · 5d agoAdvisoryCVE-2026-52914CVE-2026-52931CVE-2026-52955+8 CVEs

'TerminalFix' Campaign Weaponizes PowerShell for Enterprise Attacks

A ClickFix-style campaign called TerminalFix weaponizes PowerShell and reverse tunnels to infiltrate enterprise networks in a multistage attack chain.

Dark Reading reports on the TerminalFix campaign, a sophisticated multistage attack targeting enterprises. It uses a ClickFix-style social engineering lure and heavily weaponizes PowerShell. The chain establishes reverse tunnels into victim organizations' networks, giving operators interactive access for follow-on activity.

Dark Reading·Aug 31, 20:25 UTC · 15d agoThreat actor in the wild

Free streaming boxes may be routing criminal traffic through your home

Researchers found SuperBox streaming boxes and the CyberFlix TV app enroll home connections into the Popanet residential proxy network, routing criminal traffic.

Researchers found that SuperBox devices and the CyberFlix TV app, distributed through SuperBox's custom app store, contain Popanet proxy functionality that registers the device with servers controlled by the proxy operator, enrolling household connections into residential proxy networks. The reported configuration weakens Android safeguards with exposed ADB access, root-level privileges without authentication, and removal of app-install protections. Plume's research warns these proxy networks can also function as malware-delivery platforms, and the FBI notes foreign entities use residential proxies to conceal activity such as credential stuffing and account abuse. Malwarebytes advises disconnecting and replacing affected SuperBox/CyberFlix devices rather than factory-resetting them.

Malwarebytes Labs·Sep 4, 09:20 UTC · 12d agoMalware in the wild

TerminalFix looks like ClickFix, but delivers a very different payload

Malwarebytes warns TerminalFix mimics the ClickFix fake CAPTCHA social engineering trick but delivers a payload granting attackers access to victims' wider network.

Malwarebytes identified TerminalFix, a variant of the familiar ClickFix fake CAPTCHA social engineering trick. The adapted chain delivers a very different payload, one that can give attackers access to the victim's wider network beyond the initially infected host.

Malwarebytes Labs·Sep 1, 12:13 UTC · 15d agoMalware in the wild

Trends in Web Threats: Old Web Skimmer Still Active Today

Unit 42 detected 577,000 landing URL incidents in Q1 2022, with an old web skimmer family still actively stealing payment card data.

Palo Alto Unit 42 detected 577,275 landing URL incidents (116,643 unique) and 2,043,862 malicious host URL incidents (180,370 unique) between January and March 2022. Web threat volumes declined after the November 2021 holiday peak, but an old web skimmer family remained active. Business and economy sites overtook personal sites as the most common apparently benign entry points. Most malicious domains geolocated to the United States, Germany, and Russia, though proxy servers and VPNs obscure true locations.

Palo Alto Unit 42·Aug 17, 13:05 UTC · Aug 17, 2026Research

NETSCOUT expands Adaptive DDoS Protection with outbound attack mitigation

NETSCOUT extended Adaptive DDoS Protection to detect and mitigate outbound DDoS traffic at source, targeting IoT botnet attacks like Turbo-Mirai.

NETSCOUT announced an extension of its Adaptive DDoS Protection (ADP) for service providers to automatically detect and mitigate outbound DDoS traffic from compromised subscriber devices such as broadband routers and IoT devices. The capability addresses Turbo-Mirai-class botnets capable of multi-terabit attacks and integrates with Arbor Sightline, Arbor Threat Mitigation System, the ATLAS Intelligence Feed, and ASERT analysts. Source-side mitigation aims to reduce outages, transit costs, peering damage, and abuse complaints at ISPs.

Help Net Security·Aug 18, 00:00 UTC · 29d agoTools

Almost Half of Malware Samples Communicate Direct to IP

Unit 42 analysis of 4 million malware reports finds 45% of C2-active samples connect directly to hard-coded IPs, bypassing DNS defenses.

Palo Alto Unit 42 analyzed over 4 million Advanced WildFire dynamic analysis reports and found that 45.32% of malware samples with C2 activity made at least one direct-to-IP connection, accounting for 23.17% of all C2 connection attempts. The firm proposes zero trust IP (ZT-IP), an enforcement approach that verifies whether outbound destinations were ever sanctioned by a DNS response. ZT-IP analysis surfaced Phorpiex ransomware droppers fetching payloads directly from C2 IPs, a persistent data exfiltration campaign using an obfuscated \GET protocol, and Mozi P2P botnet payloads delivered to IoT devices without DNS. Only 1% of benign samples connected directly to untrusted IP addresses.

Palo Alto Unit 42·Aug 17, 12:45 UTC · Aug 17, 2026Research

Trends in Web Threats in CY Q2 2022: Malicious JavaScript Downloaders Are Evolving

Unit 42 detected 751,000 landing URL incidents in Q2 2022 and documented malicious JavaScript downloaders evolving to evade detection.

Unit 42 detected 751,331 landing URL incidents (253,644 unique) and 1,744,629 malicious host URL incidents (256,844 unique) from April through June 2022. Total landing URL incidents rose compared with Q1 2022, and unique host URL incidents grew 42%, indicating attackers deploying more variants. The report includes a case study of a JavaScript downloader campaign demonstrating new evasion techniques. Personal sites, blogs, and business sites were the top apparently benign entry points.

Palo Alto Unit 42·Aug 17, 13:05 UTC · Aug 17, 2026Research

Wireshark 4.6.8 patches 28 security bugs, nine in file parsers

Wireshark 4.6.8 fixes 28 security bugs, including nine crash-prone capture file parsers, misdecoded 5G fields, and memory-safety issues.

Wireshark 4.6.8 fixes 28 security bugs spanning advisories wnpa-sec-2026-64 through wnpa-sec-2026-91, including nine crash bugs in file parsers such as pcapng, Endace ERF and Tektronix K12xx that trigger when opening capture files. Fixes cover dissectors for RDP, SSH, Kerberos, H.245, CMS, C12.22 and several Bluetooth protocols, plus unnumbered memory-safety issues like a stack buffer overflow in the K12/RF5 writer. The release also corrects eight misdecoded 5G NAS/5GSM fields and moves the Unix extcap path to /usr/libexec/wireshark/extcap.

Help Net Security·Aug 13, 00:00 UTC · Aug 13, 2026Advisory

Attack hides malware in PNGs and drops custom reverse tunnel on victims' machines

A ClickFix social engineering wave delivers a multi-stage attack that hides malware in PNG files and installs a custom reverse tunnel.

The Register reports a new wave of ClickFix social engineering attacks that trigger a multi-stage infection chain on victim machines. The attack reportedly conceals malware inside PNG image files and deploys a custom reverse tunnel tool for attacker access. Further technical details are limited in the available text.

The Register · Security·Aug 31, 18:26 UTC · 15d agoMalware in the wild

BGP Role model: tracking the adoption of RFC 9234

Cloudflare measured RFC 9234 adoption, finding BGP Role deployment growing but two Tier 1 networks unexpectedly stripping the Only to Customer attribute.

Cloudflare analyzed adoption of RFC 9234, which introduces BGP Roles and the Only to Customer (OTC) attribute allowing routers to reject route leaks on their own. The measurement study assessed who has deployed the mechanism in the global routing table. It found two Tier 1 networks unexpectedly stripping OTC attributes, which could undermine leak protection.

Cloudflare Blog·Aug 18, 15:21 UTC · 29d agoResearch

C2Looper: A New Backdoor Likely Tied To Ransomware With GitHub C2

Zscaler ThreatLabz identified C2Looper, a new Rust-based backdoor likely tied to ransomware actors and delivered via ClickFix chains, using GitHub for C2.

In July 2026, Zscaler ThreatLabz identified C2Looper, a new Rust-based backdoor family. The malware supports arbitrary command execution, reconnaissance, and deployment of second-stage payloads, and uses GitHub as its command-and-control channel. ThreatLabz assesses with low-to-medium confidence that it is delivered through multi-stage ClickFix infection chains and is likely leveraged by a ransomware-related threat actor. The analysis covers multiple C2Looper variants, their network protocols, and capabilities.

Zscaler ThreatLabz·Aug 17, 14:06 UTC · Aug 17, 2026Malware in the wild1

**Subject:** CVE-2026-2035703: Tozed ZLT X300 5G CPE — Unauthenticated Remote Root Code Execution via TR-069 Command Injection (CVSS 9.8)

Tozed ZLT X300 5G CPE firmware 6.01.3 has an unauthenticated TR-069 command injection (CVE-2026-2035703, CVSS 9.8) enabling root code execution.

Tozed ZLT X300 5G CPE router firmware 6.01.3 contains an OS command injection (CWE-78) in the TR-069/CWMP client daemon netcwmpd, tracked as CVE-2026-2035703 with CVSS 9.8. The IPPingDiagnostics Host parameter is passed unsanitized into sprintf, and the resulting shell command executes via system_by_root() as root. An attacker operating a rogue LTE base station built from roughly $300 of SDR hardware can impersonate the carrier's Auto Configuration Server and inject arbitrary commands. The disclosure does not report any observed exploitation.

Full Disclosure·Sep 8, 17:30 UTC · 7d agoVulnerabilityCVE-2026-2035703

Risky Bulletin: Academics find source code overlaps between Geedge and China's Great Firewall

Academics linked Chinese vendor Geedge Networks' Tiangou Secure Gateway source code to one of the Great Firewall's three traffic filtering capabilities.

US researchers presenting at USENIX Security reconstructed Geedge Networks' Tiangou Secure Gateway firmware from over 100,000 leaked files, including Git repositories with commit history, and matched its filtering behavior to sections of China's Great Firewall. They found only 1 of 3 characterized DNS injectors matched Geedge code, noted the system relies on memory-unsafe C components and copied third-party code, and said its bugs could aid future circumvention tools. Geedge also exports censorship tools to Kazakhstan, Ethiopia, Pakistan, and Myanmar. The newsletter additionally rounds up multiple breaches.

Risky Business News·Aug 21, 02:55 UTC · 26d agoResearch2

New Chaos Variant Targets Misconfigured Cloud Deployments, Adds SOCKS Proxy

Darktrace says the Chaos botnet now targets misconfigured cloud deployments like Hadoop and added a SOCKS proxy for traffic relaying.

Darktrace identified a new 64-bit ELF variant of the Chaos botnet targeting misconfigured cloud deployments, expanding beyond the malware's traditional focus on routers and edge devices. Captured in a deliberately misconfigured Hadoop honeypot instance, the intrusion began with an HTTP request creating an application that ran embedded shell commands to fetch the Chaos agent binary from pan.tenire[.]com, set chmod 777 permissions, execute it, and delete the artifact to reduce forensic traces. The restructured variant adds a SOCKS proxy feature letting compromised systems ferry attacker traffic, while removing SSH-based spread and router-exploit functions, suggesting monetization beyond crypto mining and DDoS-for-hire. Possible Chinese origin is suggested by language artifacts and infrastructure; the delivery domain was previously used in Silver Fox's Operation Silk Lure phishing campaign delivering ValleyRAT.

The Hacker News·Aug 18, 12:13 UTC · 29d agoMalware1

Foul Language: WordlistLoader Disguises Malware as Ordinary Text

ClickFix-style campaigns deploy WordlistLoader, which disguises malware as ordinary text, to deliver the increasingly prevalent Amatera infostealer.

Researchers describe WordlistLoader, a new loader that disguises malicious payloads as ordinary text or wordlist files to evade detection. It is being used in ClickFix-style social engineering campaigns to deliver Amatera, an increasingly prevalent infostealer. The obfuscation technique helps the campaign slip past file-type-based inspections.

Dark Reading·Aug 24, 20:51 UTC · 22d agoMalware in the wild

Autoencoder Is All You Need: Profiling and Detecting Malicious DNS Traffic

Palo Alto Unit 42 details an autoencoder-based method that profiles DNS traffic to detect C2 and malicious domains, blocking ~374,000 malicious DNS requests daily.

Unit 42 built an RNN-based autoencoder that compresses DNS traffic time series into fixed-dimensional 'DNS profiles' for each domain and device. Downstream classification, clustering, and anomaly detection modules flag suspicious domains, capturing 170 emerging suspicious domains in May 2024. Signatures block roughly 374,000 malicious DNS requests daily and run in the Advanced DNS Security service, with detections shared to Advanced URL Filtering. Case studies link DNS traffic patterns to C2 beaconing, dynamic DNS abuse, and DNS tunneling for data exfiltration.

Palo Alto Unit 42·Aug 17, 12:47 UTC · Aug 17, 2026Research

Version Control DFIR: a Cheatsheet to GitHub, GitLab, Bitbucket, and Azure DevOps

Wiz published a DFIR cheatsheet covering log visibility, incident readiness, and threat hunting across GitHub, GitLab, Bitbucket, and Azure DevOps.

Wiz researchers released a practitioner's guide to version control system forensics, incident response, and threat hunting. The cheatsheet maps log sources, audit capabilities, and hunting workflows across GitHub, GitLab, Bitbucket, and Azure DevOps. It aims to improve incident readiness for source code and CI/CD compromise scenarios.

Wiz Blog·Aug 27, 12:00 UTC · 20d agoResearch1

Give every teammate and agent the right level of access to your Workers

Cloudflare launches per-Worker granular access controls with four roles, enabling least-privilege access for teammates, AI agents, and CI/CD pipelines.

Cloudflare announced granular authorization for Workers, letting admins scope access to a single Worker instead of the whole account. Four new roles are available: Metadata Read-Only (observability without source code), Content Read-Only (read code without changes), Editor (deploy without delete), and Admin (full control of one Worker). Roles apply at Developer Platform, product, or resource level, can be attached to dashboard users or API tokens, and are available to all customers now, with plans to extend to D1, R2, and KV.

Cloudflare Blog·Sep 15, 13:00 UTC · 1d agoTools

Sandworm-Linked Cyclops Blink Returns With Network Scanning and Packet-Sniffing Capabilities

Sophos uncovers a 64-bit Cyclops Blink variant on hacked Cisco FMC appliances, adding internal network scanning and selective packet capture; linked to Sandworm.

Sophos CTU analyzed a new 64-bit x86-64 Cyclops Blink implant (timezone_check) deployed on Cisco Secure Firewall Management Center appliances compromised via CVE-2026-20079 authentication bypass and CVE-2026-20316 low-privileged login. The activity is assessed with high confidence as Russian-nexus, with a moderate-confidence link to Sandworm (IRON VIKING, also tracked as Seashell Blizzard). The implant runs a parent controller plus five worker modules, masquerades as [kworker/0:1], persists via SysV init scripts at /lib/tz/timezone_check, and beacons to hard-coded C2 89.34.96.56 over a custom TLS protocol on ports 43856 and 49172. New module 0x11 scans internal IPv4 networks for SSH, SMB, LDAP, VMware, HTTP/HTTPS and VPN services, while module 0x12 performs filtered packet capture that can expose cleartext credentials, cookies and tokens.

GBHackers·Sep 14, 09:27 UTC · 2d agoMalware in the wild 13 sourcesCVE-2026-20079CVE-2026-20316

How a Real Estate Company Turned a SQL Lockout Into Actionable Security Insight

A real estate company used Horizon3.ai's NodeZero to trace a SQL account lockout to a hidden privilege path and remediate it.

A Horizon3.ai customer story describes a large real estate company using NodeZero to investigate a SQL account lockout. The assessment traced the lockout to a deeper privilege path in the environment. The findings reportedly drove immediate remediation of the exposed privilege risk.

Horizon3.ai·Aug 25, 12:54 UTC · 22d agoTools

FCC proposes public scorecard to rate telecoms on anti-robocall efforts

The FCC proposed a public scorecard rating telecoms' anti-robocall effectiveness and removed 14 providers from US networks for compliance failures.

The Federal Communications Commission issued a public notice proposing a scorecard that would assess how effectively retail voice providers, including wireless, wireline and VoIP, prevent illegal robocalls, drawing on Robocall Mitigation Database filings, consumer complaint and enforcement data. The agency stressed it is not a rulemaking imposing new requirements, and it is seeking comment on scope, such as whether to focus on larger providers. The same day, the FCC removed 14 providers from the Robocall Mitigation Database for non-compliance, effectively requiring other US providers to block their traffic within two days.

CyberScoop·Sep 2, 17:57 UTC · 13d agoPolicy & legal

12 Best CIEM Tools Compared (2026): Features & Pricing

Buyer's guide compares twelve CIEM tools; Microsoft discontinued Entra Permissions Management, while Tenable (Ermetic), CyberArk, and Wiz lead the 2026 scorecard.

The scorecard evaluates twelve cloud infrastructure entitlement management vendors on permission analytics depth, JIT enforcement, non-human identity coverage, pricing predictability, and bundle leverage. Tenable (Ermetic) leads at 4.70, followed by CyberArk and Wiz, while Microsoft's retirement of Entra Permissions Management (CloudKnox) forces existing customers into migration cycles. Pricing structures span per-identity, per-resource, per-workload, credit-based, and quote-based models.

GBHackers·updated 09:52 UTC · 5h ago·first 07:37 UTC · 7h agoIndustry 13 sources