ToddyCat-Linked Umbrij Malware Abuses OAuth to Access Gmail via Google API

The threat actor known as ToddyCat has been attributed to a new malware called Umbrij that's designed to gain surreptitious access to a victim's email correspondence via the Google API. "In this campaign, the attackers focused their attention on corporate email communications hosted on Gmail,...

Synthetic APTs: The Collapse of TTP-Based Attribution

Cyber Threat Intelligence CTI attribution relies on identifying the Tactics, Techniques, and Procedures TTPs that distinguish one threat actor from another. This approach presupposes that each adversary leaves a recognizable operational fingerprint. This work investigates whether AI driven...

High-Precision APT Malware Attribution with Out-Of-Scope Resilience

Early attribution of Advanced Persistent Threat APT activity can help defenders prioritise investigation, select countermeasures, and reduce the impact of an intrusion. Malware provides useful attribution evidence, but automated APT malware attribution remains difficult in practice. Existing...

FIRESTARTER Backdoor Hit Federal Cisco Firepower Device, Survives Security Patches

The U.S. Cybersecurity and Infrastructure Security Agency CISA has revealed that an unnamed federal civilian agency's Cisco Firepower device running Adaptive Security Appliance ASA software was compromised in September 2025 with a new malware called FIRESTARTER. FIRESTARTER, per CISA and the U.K....

PoC_n_Dockerfile_4_PentestFinalProject_Group02

🛡️ PoC & Dockerfiles - Pentest Final Project Group 02 cite...

APT28 Deploys PRISMEX Malware in Campaign Targeting Ukraine and NATO Allies

The Russian threat actor known as APT28 aka Forest Blizzard and Pawn Storm has been linked to a fresh spear-phishing campaign targeting Ukraine and its allies to deploy a previously undocumented malware suite codenamed PRISMEX. "PRISMEX combines advanced steganography, component object model COM...

Wa3r-OffSec-Kit

🔐 Wa3r-OffSec-Kit - Practical Security Tools and Notes !Dow...

Beers with Talos breaks down the 2025 Talos Year in Review

The Beers with Talos B team that's Hazel, Bill, Joe and Dave break down sometimes in the literal sense the 2025 Talos Year in Review which is available now. The team dives into the biggest cybersecurity trends of the year, including: The rapid weaponization of new vulnerabilities Why identity abu...

ProHunter APT Hunting Tool / Paper

Advanced Persistent Threats APTs remain difficult to detect due to their stealthy nature and long-term persistence. To tackle this challenge, provenance-based threat hunting has gained traction as a proactive defense mechanism. This technique models audit logs as a whole-system provenance graph a...

DeepXplain: XAI-Guided Autonomous Defense against Multi-Stage APT Campaigns

Advanced Persistent Threats APTs are stealthy, multi-stage attacks that require adaptive and timely defense. While deep reinforcement learning DRL enables autonomous cyber defense, its decisions are often opaque and difficult to trust in operational environments. This paper presents DeepXplain, a...

DeepStage: Learning Autonomous Defense Policies against Multi-Stage APT Campaigns

This paper presents DeepStage, a deep reinforcement learning DRL framework for adaptive, stage-aware defense against Advanced Persistent Threats APTs. The enterprise environment is modeled as a partially observable Markov decision process POMDP, where host provenance and network telemetry are fus...

ProvAgent: Threat Detection Based on Identity-Behavior Binding and Multi-Agent Collaborative Attack Investigation

Advanced Persistent Threats APTs pose critical challenges to modern cybersecurity due to their multi-stage and stealthy nature. While provenance-based detection approaches show promise in capturing causal attack semantics, current threat provenance practices face two paradoxical issues: 1 expert...

A week in security (February 23 – March 1)

Last week on Malwarebytes Labs: Public Google API keys can be used to expose Gemini AI data Inside a fake Google security check that becomes a browser RAT Fake Zoom and Google Meet scams install Teramind: A technical deep dive How to understand and avoid Advanced Persistent Threats The Conduent...

China-Linked UNC3886 Targets Singapore Telecom Sector in Cyber Espionage Campaign

The Cyber Security Agency CSA of Singapore on Monday revealed that the China-nexus cyber espionage group known as UNC3886 targeted its telecommunications sector. "UNC3886 had launched a deliberate, targeted, and well-planned campaign against Singapore's telecommunications sector," CSA said. "All...

Semantic-Aware Advanced Persistent Threat Detection Using Autoencoders on LLM-Encoded System Logs

Advanced Persistent Threats APTs are among the most challenging cyberattacks to detect. They are carried out by highly skilled attackers who carefully study their targets and operate in a stealthy, long-term manner. Because APTs exhibit "low-and-slow" behavior, traditional statistical methods and...

Techniques of Modern Attacks

The techniques used in modern attacks have become an important factor for investigation. As we advance further into the digital age, cyber attackers are employing increasingly sophisticated and highly threatening methods. These attacks target not only organizations and governments but also extend...

Cisco Patches Zero-Day RCE Exploited by China-Linked APT in Secure Email Gateways

Cisco on Thursday released security updates for a maximum-severity security flaw impacting Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager, nearly a month after the company disclosed that it had been exploited as a zero-day by a China-nexus advanced...

UAT-8837 targets critical infrastructure sectors in North America

Cisco Talos is closely tracking UAT-8837, a threat actor we assess with medium confidence is a China-nexus advanced persistent threat APT actor based on overlaps in tactics, techniques, and procedures TTPs with those of other known China-nexus threat actors. Based on UAT-8837's TTPs and...

China-Linked Evasive Panda Ran DNS Poisoning Campaign to Deliver MgBot Malware

A China-linked advanced persistent threat APT group has been attributed to a highly-targeted cyber espionage campaign in which the adversary poisoned Domain Name System DNS requests to deliver its signature MgBot backdoor in attacks targeting victims in Türkiye, China, and India. The activity,...

⚡ Weekly Recap: Firewall Exploits, AI Data Theft, Android Hacks, APT Attacks, Insider Leaks & More

Cyber threats last week showed how attackers no longer need big hacks to cause big damage. They're going after the everyday tools we trust most — firewalls, browser add-ons, and even smart TVs — turning small cracks into serious breaches. The real danger now isn't just one major attack, but...