Guardicore Labs

Guardicore Labs is a global research team, consisting of hackers, cybersecurity researchers and industry experts. We publish our cyber security research and provide analysis, insights and response methodologies to the latest cyber threats as well as lead and participate in academic research. We are also the core maintainers of the Infection Monkey, a popular open-source network resiliency test tool.

FritzFrog: A New Generation of Peer-to-Peer Botnets

Guardicore Labs uncovers a sophisticated, multifunctional P2P botnet written in Golang and targeting SSH servers.

August 19, 2020

Test Your ATT&CK Before the Attack With Guardicore Infection Monkey

April 27, 2020

Test Your ATT&CK Before the Attack With Guardicore Infection Monkey

What’s a 10? Pwning vCenter with
CVE-2020-3952

JJ Lehmann, Ofri Ziv

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April 15, 2020

Guardicore Labs provides a full, detailed technical analysis of the latest vulnerability from VMware - CVE-2020-3952. The bug, which hit the maximal score of CVSS 10.0, allows a malicious actor to take over the complete vSphere infrastructure, with all its machines and servers.

The Vollgar Campaign: MS-SQL Servers Under Attack

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April 1, 2020

Guardicore Labs uncovers an attack campaign that’s been under the radar for almost two years, breaching MS-SQL servers and infecting them with remote-access tools and cryptominers.

TEST YOUR NETWORK WITH OUR OPEN SOURCE ATTACK SIMULATION TOOL

Assess the resiliency of your network to post-breach attacks and lateral movement

January 2020’s Patch Tuesday

Daniel Goldberg, Yoni Rozenshein

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January 15, 2020

Guardicore Labs extracts what you need to know regarding the January 2020 Patch Tuesday and data centers.

Threats Making WAVs - Incident Response to a Cryptomining Attack

Guardicore Labs Team

January 13, 2020

Guardicore security researchers describe and uncover a full analysis of a cryptomining attack, which hid a cryptominer inside WAV files. The report includes the full attack vectors, from detection, infection, network propagation and malware analysis and recommendations for optimizing incident response processes in data centers.

Iran Cyber Threats and Defenses

Daniel Goldberg

January 8, 2020

Guardicore Labs explains the danger and current status of online Iranian attacks

Windows Server 2008 R2 and Windows 7 are End of Life

Daniel Goldberg

December 15, 2019

Discover the steps to harden machines running Windows 7, Windows Server 2008 and Windows Server 2008 R2 against the inevitable unpatched vulnerability that will be disclosed for these systems.

Guardicore Infection Monkey for Zero Trust

Guardicore Infection Monkey for Zero Trust

October 29, 2019

Guardicore Labs releases new Zero Trust features to the Infection Monkey to help organizations assess their zero trust security posture quickly and easily.

Guardicore Labs uncovers the scope of the Smominru mining botnet.

The Massive Propagation of the Smominru Botnet

Ophir Harpaz, Daniel Goldberg

September 18, 2019

Guardicore Labs provided assistance in a ransomware investigation. We analysed the decryption process of the IEncrypt ransomware and provided a safe-to-use version of the attackers’ decryptor.

Nansh0u

The Nansh0u Campaign - Hackers Arsenal Grows Stronger

Ophir Harpaz, Daniel Goldberg

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May 29, 2019

Guardicore Labs provided assistance in a ransomware investigation. We analysed the decryption process of the IEncrypt ransomware and provided a safe-to-use version of the attackers’ decryptor.

Guardicore Labs Patch Tuesday

May 2019’s Patch Tuesday: Must-Knows for Every Data Center

Daniel Goldberg, Ophir Harpaz

May 15, 2019

Guardicore Labs provided assistance in a ransomware investigation. We analysed the decryption process of the IEncrypt ransomware and provided a safe-to-use version of the attackers’ decryptor.

IResponse to IEncrypt

Ophir Harpaz, Danielle Kuznets

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April 5, 2019

Guardicore Labs provided assistance in a ransomware investigation. We analysed the decryption process of the IEncrypt ransomware and provided a safe-to-use version of the attackers’ decryptor.

Guardicore - Introducing Guardicore Cyber Threat Intelligence

Introducing Guardicore Cyber Threat Intelligence

Daniel Goldberg, Ravit Greitser

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March 26, 2019

Guardicore Labs is announcing the release of Cyber Threat Intelligence (CTI), a freely available resource to assist security teams in identifying and investigating malicious IP addresses and domains. Our Cyber Threat Intelligence is designed to allow security teams to keep track of potential threats that are specific to data center and cloud infrastructure.

Highlights of BlueHat Israel 2019

Daniel Goldberg

February 12, 2019

BlueHat Israel covered many interesting talks, covering supply chain attacks, processor flaws and many more.

A vulnerability in Debian’s apt allows for easy lateral movement in data centers

Daniel Goldberg

January 23, 2019

Guardicore Labs explains the recent vulnerability in the apt package management tool that allows attackers to exploit software installation process to attack Linux servers.

Bread and butter attacks

Daniel Goldberg, Ofri Ziv

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November 29, 2018

Guardicore Labs has uncovered an SSH brute force attack that has stayed under the radar for years. The attack deploys a RAT with DDoS capabilities and a cryptocurrency miner. In this post, we describe the attack, payload and different preventive steps.

Guardicore - What's New in Infection Monkey Release 1.6

What's New in Infection Monkey Release 1.6

Daniel Goldberg, Ravit Greitser

November 21, 2018

We are proud to announce the release of a new version of the Infection Monkey, GuardiCore’s open-source Breach and Attack Simulation (BAS) tool. Release 1.6 introduces several new features and a few bug fixes.

Guardicore - With libSSH, Authentication is Optional

With libSSH, Authentication is Optional

Daniel Goldberg, Ofri Ziv

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October 18, 2018

A critical vulnerability (CVE-2018-10933) was disclosed in libSSH, a library implementing the SSH2 protocol for clients and servers. The vulnerability allows an attacker to completely bypass the authentication step and connect to the server without providing any credentials, the worst possible flaw for a library implementing SSH.

Guardicore - Operation Prowli: Monetizing 40,000 Victim Machines

Operation Prowli: Monetizing 40,000 Victim Machines

Daniel Goldberg, Ofri Ziv, Mor Matalon

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June 6, 2018

Guardicore Labs has uncovered a previously unknown operation named Prowli, focused on cryptocurrency mining and traffic hijacking. This operation showcases how attackers abuses insecure websites and their visitors by redirecting them to malicious domains.

Guardicore - Azure passwords are still at risk; Infection Monkey can help

Azure passwords are still at risk; Infection Monkey can help

Ravit Greitser, Ofri Ziv

April 4, 2018

As this security flaw still exists and puts Azure environments at risk, we believe it’s important to continuously verify whether your environment is vulnerable. To do that we integrated Azure password harvesting capabilities into the Infection Monkey.

Guardicore - Recovering Plaintext Passwords from Azure Virtual Machines like It’s the 1990s

Recovering Plaintext Passwords from Azure Virtual Machines like It’s the 1990s

Daniel Goldberg, Ofri Ziv

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March 19, 2018

While researching the Azure Guest Agent, we’ve uncovered several security issues which have all been reported to Microsoft. This post will focus on a security design flaw in the VM Access plugin that may enable a cross platform attack impacting every machine type provided by Azure.

Guardicore - The Next Gen Infection Monkey is Here

The Next Gen Infection Monkey is Here

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March 13, 2018

We are pleased to announce a new version of our Infection Monkey open source attack simulation tool with several significant enhancements. We first introduced the Infection Monkey in 2016 and have continuously developed and supported it. Part of what we did came from feedback we received from our community so thanks everyone for contributing!

Guardicore - Something is brewing: A CPU bug risks virtual memory segmentation

Something is brewing: A CPU bug risks virtual memory segmentation

Daniel Goldberg, Ofri Ziv

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January 3, 2018

At any given moment, attack and defense are in a cat and mouse game where each side gains a momentary advantage. What we’ve recently seen over the past few months is a situation where defense is playing catch-up with what appears to be a serious hardware bug.