Zero-day vulnerability in Zimbra Servers being exploited-in-the-wild

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here A zero-day cross-site scripting XSS vulnerability has been discovered in the Zimbra email software. A threat actor is taking advantage of this issue by launching a targeted spear-phishing attack named Operation EmailThief. Two...

New Sandworm Malware Cyclops Blink Replaces VPNFilter

Summary The Sandworm actor, which the United Kingdom and the United States have previously attributed to the Russian GRU, has replaced the exposed VPNFilter malware with a new more advanced framework. The United Kingdom's UK National Cyber Security Centre NCSC, the Cybersecurity and Infrastructur...

Millions of WordPress site backups at risk due to a vulnerability in UpdraftPlus plugin

THREAT LEVEL: Amber. For a detailed advisory, download the pdf file here UpdraftPlus is a backup tool for WordPress files, databases, plug-ins, and themes that allows you to create, restore, and migrate backups. UpdraftPlus is utilized by more than three million WordPress websites, according to i...

Apache Cassandra database affected by easily exploitable Remote code execution

THREAT LEVEL: Amber. For a detailed advisory, download the pdf file here Apache Cassandra is a database software being used by many companies such as Uber, Facebook, Netflix, Twitter, Instagram, Spotify, Instacart, Reddit, and Accenture. A remote code execution flaw CVE-2021-44521 is reported whi...

Microsoft Patch Tuesday addresses a zero-day vulnerability in Windows Kernel

THREAT LEVEL: Amber. For a detailed advisory, download the pdf file here Microsoft addressed 51 vulnerabilities in the February 2022 patch Tuesday release, one of which was classified as a zero-day vulnerability. A remote attacker could exploit some of these vulnerabilities to gain control of a...

ACTINIUM targets Ukrainian organizations

The Microsoft Threat Intelligence Center MSTIC is sharing information on a threat group named ACTINIUM, which has been operational for almost a decade and has consistently pursued access to organizations in Ukraine or entities related to Ukrainian affairs. MSTIC previously tracked ACTINIUM activi...

New rootkit iLOBleed targets HP servers

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here. The rootkit known as iLOBleed has been active since 2020 that is targeting Hewlett-Packard HP enterprises Integrated Lights-Out iLO server management technology to delete data from infected machines and corrupt firmware. The...

Microsoft released patch for actively exploited spoofing vulnerability

THREAT LEVEL: Amber. For a detailed advisory, download the pdf file here. Microsoft AppX has a spoofing vulnerability that has been assigned CVE-2021-43890. Attackers are taking advantage of this critical vulnerability by deploying well-known malwares such as Emotet, Trickbot, and Bazaloader. Thi...

Cerber targeting organizations with publicly available exploits

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here. Cerber, ransomware that mysteriously vanished in 2019, has reappeared with a new encryption. The new cerber includes fresh source code and makes use of the new library Crypto+++, whereas the previous form made use of Windows...

APT Actors Exploiting Newly Identified Vulnerability in ManageEngine ADSelfService Plus

Summary This Joint Cybersecurity Advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge ATT &CK® framework, Version 8. See the ATT&CK for Enterprise for referenced threat actor tactics and for techniques. This joint advisory is the result of analytic efforts between the...

VECTR - A Tool That Facilitates Tracking Of Your Red And Blue Team Testing Activities To Measure Detection And Prevention Capabilities Across Different Attack Scenarios

VECTR documentation can be found here: https://docs.vectr.io VECTR Community Discord Channel: https://discord.gg/2FRd8zf728 VECTR is a tool that facilitates tracking of your red and blue team testing activities to measure detection and prevention capabilities across different attack scenarios...

Operation ‘Harvest’: A Deep Dive into a Long-term Campaign

ARCHIVED STORY Operation ‘Harvest’: A Deep Dive into a Long-term Campaign By Christiaan Beek · September 14, 2021 A special thanks to our Professional Services’ IR team, ShadowServer, for historical context on C2 domains, and Thomas Roccia/Leandro Velasco for malware analysis support. Executive...

Operation ‘Harvest’: A Deep Dive into a Long-term Campaign

ARCHIVED STORY Operation ‘Harvest’: A Deep Dive into a Long-term Campaign By Christiaan Beek · September 14, 2021 A special thanks to our Professional Services’ IR team,ShadowServer, for historical context on C2 domains, and Thomas Roccia/Leandro Velasco for malware analysis support. Executive...

Talos Incident Response quarterly threat report — The top malware families and TTPs used in Q2 2021

By David Liebenberg and Caitlin Huey. Last quarter, ransomware was not the most dominant threat for the first time since we began compiling these reports. We theorized that this was due to a huge uptick in Microsoft Exchange exploitation, which temporarily became a primary focus for Cisco... This...

UNC215: Spotlight on a Chinese Espionage Campaign in Israel

This blog post details the post-compromise tradecraft and operational tactics, techniques, and procedures TTPs of a Chinese espionage group we track as UNC215. While UNC215’s targets are located throughout the Middle East, Europe, Asia, and North America, this report focuses on intrusion activity...

Babuk: Biting off More than they Could Chew by Aiming to Encrypt VM and *nix Systems? | McAfee Blogs

Babuk: Biting off More than they Could Chew by Aiming to Encrypt VM and nix Systems? Thibault Seret · JUL 28, 2021 Co-written with Northwave’s Noël Keijzer. Executive Summary For a long time, ransomware gangs were mostly focused on Microsoft Windows operating systems. Yes, we observed the...

Kubernetes Used in Brute-Force Attacks Tied to Russia’s APT28

U.S. and U.K. authorities are warning that the APT28 advanced-threat actor APT – a.k.a. Fancy Bear or Strontium, among other names – has been using a Kubernetes cluster in a widespread campaign of brute-force password-spraying attacks against hundreds of government and private sector targets...

Red Teaming. Practice what you preach

We carry out plenty of Red Teaming for customers. As a CBEST, STAR-FS and GBEST accredited supplier, our Red Team work with many large regulated organisations every day of the week. We frequently remind our clients how a simulated attack can be one of the best ways to assess prevention, detection...

Experts Shed Light On Distinctive Tactics Used by Hades Ransomware

Cybersecurity researchers on Tuesday disclosed "distinctive" tactics, techniques, and procedures TTPs adopted by operators of Hades ransomware that set it apart from the rest of the pack, attributing it to a financially motivated threat group called GOLD WINTER. "In many ways, the GOLD WINTER...

Kill chains: Part 1→Strategic and operational value

It really is a good thing The term “kill chain” sounds extremely harsh. Almost as if after something is killed, it gets moved down the chain to be killed again. How dramatic! Indeed, the original definition was to describe how an enemy combatant of the military might attack; that is, the steps th...