A new adversary simulation tool is steadily growing in the ranks of popularity among red teamers and most recently adversaries. Brute Ratel states on its website that it “is the most advanced Red Team & Adversary Simulation Software in the current C2 Market.” Many of these products are marketed to assist blue teams in validating detection, prevention, and gaps of coverage.…
Tag: SOC
Circa the beginning of August 2022, while doing security monitoring & incident response services, GTSC SOC team discovered that a critical infrastructure was being attacked, specifically to their Microsoft Exchange application. During the investigation, GTSC Blue Team experts determined that the attack utilized an unpublished Exchange security vulnerability, i.e.,…
New Drive-by Download Campaign Spying on Users
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SocGholish is a JavaScript malware framework that has been active since 2017. The term “Soc” in “SocGholish” refers to the use of social engineering toolkits masquerading as software updates to deploy malware on a victim’s system.
This malware framework uses several social engineering themes that impersonate browser and program updates such as Chrome/Firefox, Flash Player, and Microsoft Teams.…
Cybereason GSOC team analysts have analyzed a specific technique that leverages Notepad++ plugins to persist and evade security mechanisms on a machine. Following this introduction, we describe in detail how to reproduce this attack and implement detection and prevention mechanisms.…
Key Takeaways
Arctic Wolf Labs assesses with medium confidence that the Lorenz ransomware group exploited CVE-2022-29499 to compromise Mitel MiVoice Connect to gain initial access
Lorenz waited nearly a month after obtaining initial access to conduct additional activity
Lorenz exfiltrated data via FileZilla
Encryption was done via BitLocker and Lorenz ransomware on ESXi
Lorenz employed a high degree of Operational Security (OPSEC)
Ransomware groups continue to use Living Off the Land Binaries (LOLBins) and gaining access to 0day exploits
Process and PowerShell Logging can significantly aid incident responders and potentially help decrypt encrypted files
Background
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The Arctic Wolf Labs team recently investigated a Lorenz ransomware intrusion, which leveraged a Mitel MiVoice VoIP appliance vulnerability (CVE-2022-29499) for initial access and Microsoft’s BitLocker Drive Encryption for data encryption.…
The Cybereason Global Security Operations Center (GSOC) Team issues Threat Analysis Reports to inform on impacting threats. The Threat Analysis Reports investigate these threats and provide practical recommendations for protecting against them.…
Summary
Actions to take today to mitigate cyber threats from ransomware:
• Prioritize and remediate known exploited vulnerabilities.• Train users to recognize and report phishing attempts.• Enable and enforce multifactor authentication.
Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders that detail various ransomware variants and ransomware threat actors.…
Research by: Moshe Marelus
Highlights:
Check Point Research (CPR) detected a Turkish based crypto miner malware campaign, dubbed ‘Nitrokod’, which infected machines across 11 countries
The malware is dropped from popular software available on dozens of free software websites
The malware distributers separate malicious activity from the downloaded fake software to avoid detection
Attack was initially found by Check Point XDR, which overcomes the attack’s evasion mechanism. …
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Remcos is a remote access trojan – a malware used to take remote control over infected PCs.This trojan is created and sold to clients by a “business” called Breaking Security.
Although Breaking Security promises that the program is only available to those who intend to use it for legal purposes, in reality, Remcos RAT gives clients all the necessary features to launch potentially destructive attacks.…
Key points
The Black Hat network is more unique and complex than a standard enterprise network due to the number and diversity of devices connected, the abundance of trainings and labs that occur, and the rapid nature of the engagement itself. Over the course of the conference, our IronDefense NDR solution generated 31 malicious alerts and 45 suspicious alerts, detecting both real malware activity and simulated attack tactics from classes and demos.…Summary
Actions for ZCS administrators to take today to mitigate malicious cyber activity:
• Patch all systems and prioritize patching known exploited vulnerabilities.
• Deploy detection signatures and hunt for indicators of compromise (IOCs).
• If ZCS was compromised, remediate malicious activity.
Updated November 10, 2022: This product was written by the Cybersecurity and Infrastructure Security Agency (CISA) and the Multi-State Information Sharing and Analysis Center (MS-ISAC) with contributions by the Federal Bureau of Investigation (FBI).…
The Cybereason Global Security Operations Center (GSOC) Team issues Cybereason Threat Analysis Reports to inform on impacting threats. The Threat Analysis Reports investigate these threats and provide practical recommendations for protecting against them.…
Gootloader is a Malware-as-a-Service (MaaS) offering that is spread through Search Engine Optimization (SEO) poisoning to distribute malicious payloads, such as IcedID. Threat actors have begun using IcedID, a former banking trojan, since it’s a stealthier option compared to Cobalt Strike.
In fact, the eSentire Threat Response Unit (TRU) team recently published a security advisory, The Popular Malware Downloader, GootLoader, Expands its Payloads Yet Again, Infecting a Law Firm with IcedID, that outlined TRU’s discovery of threat actors deploying IcedID onto a law firm’s IT environment via an employee’s computer.…
Lightning Framework is a new undetected Swiss Army Knife-like Linux malware that has modular plugins and the ability to install rootkits.
Year after year Linux environments increasingly become the target of malware due to continued threat actor interest in the space. Malware targeting Linux environments surged in 2021, with a large amount of innovation resulting in new malicious code, especially in ransomwares, trojans, and botnets.…
Linux is a popular operating system for servers and cloud infrastructures, and as such it’s not a surprise that it attracts threat actors’ interest and we see a continued growth and innovation of malware that targets Linux, such as the recent Symbiote malware that was discovered by our research team.…
Adversaries don’t work 9-5 and neither do we. At eSentire, our 24/7 SOCs are staffed with Elite Threat Hunters and Cyber Analysts who hunt, investigate, contain and respond to threats within minutes.
We have discovered some of the most dangerous threats and nation state attacks in our space – including the Kaseya MSP breach and the more_eggs malware.…
QakBot, also known as QBot, QuackBot, or Pinkslipbot, is a banking trojan malware that has existed for over a decade. In recent years, QakBot has become one of the leading banking trojans around the globe. Its main purpose is to steal banking credentials (e.g., logins, passwords, etc.)…
Purple Fox malware was first discovered in 2018 and was delivered by RIG EK (Exploit Kit). However, it has now become an independent malware with its own exploit kit framework. Like many other exploit kits, Purple Fox is regularly updating its capabilities by using different exploits that are available in the wild to obtain remote code execution and privilege escalation on vulnerable machines as well as installing backdoors and propagating to other machines.…
The Quantum Locker is a ransomware strain that was first discovered in July 2021. Since then, the ransomware was observed used in fast ransomware attacks, in some cases even Time-to-Ransom (TTR) of less than 4 hours, leaving defenders little time to react.…