Tag: FIREWALL

Estimated reading time: 6 minutes

Cerber is a strain of ransomware that was first identified in early 2016. It is a type of malware that encrypts a victim’s files and demands a ransom for the decryption key needed to unlock the files. Cerber, like many other ransomware variants, typically targets individuals and organizations by encrypting their files and demanding a ransom payment (usually in cryptocurrencies like Bitcoin) for the decryption key.…

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In the vast world of cybersecurity, as technologies evolve, so do the methods attackers employ to compromise systems. One such intriguing method that recently surfaced is MySQL servers, leveraging SQL commands to stealthily infiltrate, deploy, and activate malicious payloads. Let’s delve deeper into the MySQL bot infection process and explore the intricacies of its operation.…

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Cisco Talos recently discovered a new campaign conducted by the Lazarus Group we’re calling “Operation Blacksmith,” employing at least three new DLang-based malware families, two of which are remote access trojans (RATs), where one of these uses Telegram bots and channels as a medium of command and control (C2) communications.…
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In the ever-evolving landscape of cybersecurity threats, one name that consistently surfaces as a force to be reckoned with is “PlugX.” This covert and insidious malware has left a trail of digital intrigue, combining advanced features with a knack for eluding detection. Its history is interwoven with cyber espionage, targeted attacks, and a continuous cat-and-mouse game with security experts (1)(2).…

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SUMMARY

The Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency (NSA), Environmental Protection Agency (EPA), and the Israel National Cyber Directorate (INCD)—hereafter referred to as “the authoring agencies”—are disseminating this joint Cybersecurity Advisory (CSA) to highlight continued malicious cyber activity against operational technology devices by Iranian Government Islamic Revolutionary Guard Corps (IRGC)-affiliated Advanced Persistent Threat (APT) cyber actors.…

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By Securonix Threat Research: D.Iuzvyk, T.Peck, O.Kolesnikov

tl;dr

Threat actors working as part of DB#JAMMER attack campaigns are compromising exposed MSSQL databases using brute force attacks and appear to be well tooled and ready to deliver ransomware and Cobalt Strike payloads.

In an interesting attack campaign, the Securonix Threat Research team has identified threat actors targeting exposed Microsoft SQL (MSSQL) services using brute force attacks.…

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SUMMARY

The Cybersecurity and Infrastructure Security Agency (CISA) is releasing a Cybersecurity Advisory (CSA) in response to confirmed exploitation of CVE-2023-26360 by unidentified threat actors at a Federal Civilian Executive Branch (FCEB) agency. This vulnerability presents as an improper access control issue impacting Adobe ColdFusion versions 2018 Update 15 (and earlier) and 2021 Update 5 (and earlier).…

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Affected Platforms: Any OS running Apache Active MQ versions prior to 5.15.16, 5.16.7, 5.17.6, and 5.18.3Impacted Parties: Any organizationImpact: Remote attackers gain control of the vulnerable systemsSeverity Level: Critical

This past October, Apache issued a critical advisory addressing CVE-2023-46604, a vulnerability involving the deserialization of untrusted data in Apache.…

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Cisco Talos recently discovered a malicious campaign that likely started as early as August 2023, delivering a new remote access trojan (RAT) we dubbed “SugarGh0st.”  We found evidence suggesting the threat actor is targeting the Uzbekistan Ministry of Foreign Affairs and users in South Korea.  We assess with high confidence that the SugarGh0st RAT is a new customized variant of Gh0st RAT, an infamous trojan that’s been active for more than a decade, with customized commands to facilitate the remote administration tasks as directed by the C2 and modified communication protocol based on the similarity of the command structure and the strings used in the code.…
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This post is also available in: 日本語 (Japanese)

Executive Summary

Unit 42 researchers recently discovered two separate campaigns targeting job-seeking activities linked to state-sponsored threat actors associated with the Democratic People’s Republic of Korea (DPRK), commonly known as North Korea. We call the first campaign “Contagious Interview,” where threat actors pose as employers (often anonymously or with vague identities) to lure software developers into installing malware through the interview process.…

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Key TakeawaysCyble Research and Intelligence Labs (CRIL) has recently identified a website called Persian Remote World engaged in the sale of a variety of malicious tools. Persian Remote World provides an extensive range of malicious tools, including Remote Access Trojans (RATs), loaders, and crypters. The site developers offer these malicious tools under different subscription models at varying prices.…
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Table of Contents

During a recent hunt, Qualys Threat Research has come across a ransomware family known as Phobos, impersonating VX-Underground. Phobos ransomware has been knocking on our door since early 2019 and is often seen being distributed via stolen Remote Desktop Protocol (RDP) connections. Strongly believed to be closely tied to the preceding Dharma malware, Phobos usually operates as a Ransomware-as-a-Service (RaaS) threat model.…

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Cisco Talos recently identified the most prolific Phobos variants, common affiliate tactics, techniques and procedures (TTPs), and characteristics of the Phobos affiliate structure, based on observed Phobos activity and analysis of over 1,000 Phobos samples from VirusTotal dating back to 2019. We assess with moderate confidence Eking, Eight, Elbie, Devos and Faust are the most common Phobos variants, as they appeared most frequently across the samples we analyzed. …
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Introduction

On November 8 2023, SysAid published an advisory for CVE-2023-47246 regarding a critical zero-day vulnerability on their SysAid On-Premise software. SysAid describes the vulnerability as a path traversal vulnerability leading to code execution for the same software. This blog includes immediate recommendations for SysAid On-Premise software customers, best practices for long-term protection against these kinds of vulnerabilities, and a brief analysis of the attack chain.…

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SUMMARY

Note: This joint Cybersecurity Advisory (CSA) is part of an ongoing #StopRansomware effort to publish advisories for network defenders detailing various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations protect against ransomware.…

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