This report is provided “as is” for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained herein. The DHS does not endorse any commercial product or service referenced in this bulletin or otherwise.…
Tag: FIREWALL
By Ernesto Fernández Provecho, Pham Duy Phuc, Ciana Driscoll and Vinoo Thomas · November 21, 2023
On September 2023, the Trellix Security Operations Center (SOC) successfully detected and stopped an attack against Musarubra, the holding company for Trellix and Skyhigh Security, involving an emerging malware family named DarkGate.…
This post is also available in: 日本語 (Japanese)
Executive SummaryTensions between China and the Philippines have risen sharply over the past several months. In early August, a Chinese Coast Guard vessel fired its water cannon at a Philippine vessel that was performing a resupply mission to the disputed Second Thomas Shoal in the Spratly Islands.…
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
Read More 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.…
SUMMARY
Read More 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.…
Overview
Read More Cyble Global Sensor Intelligence (CGSI) has identified the ongoing exploitation of recently disclosed vulnerabilities that were initially highlighted in the latest advisory from the Cybersecurity and Infrastructure Security Agency (CISA). CISA took proactive measures by issuing security alerts for the actively exploited Citrix Vulnerability (CVE-2023-4966) on October 10 and the Big IP vulnerabilities (CVE-2023-46747, CVE-2023-46748) on October 31.…
This post is also available in: 日本語 (Japanese)
Executive SummarySince the end of August 2023, we have observed a significant rise in compromised servers specializing in clickbait and ad content. But why are sites like this such an attractive target for criminals? Mainly because these sites are designed to reach a large number of potential victims.…
Unveiling the Dark Side: A Deep Dive into Active Ransomware Families
Author: Molly Dewis
Intro
Read More Our technical experts have written a blog series focused on Tactics, Techniques and Procedures (TTP’s) deployed by four ransomware families recently observed during NCC Group’s incident response engagements.
In case you missed it, our last post analysed an Incident Response engagement involving the D0nut extortion group.…
This post is also available in: 日本語 (Japanese)
Executive SummaryUnit 42 has identified malicious Chinese APT infrastructure masquerading as cloud backup services. Monitoring telemetry associated with two prominent Chinese APT groups, we observed network connections predominately originating from the country of Cambodia, including inbound connections originating from at least 24 Cambodian government organizations.…
AhnLab Security Emergency response Center (ASEC) has recently discovered the active distribution of the Phobos ransomware. Phobos is a variant known for sharing technical and operational similarities with the Dharma and CrySis ransomware. These ransomware strains typically target externally exposed Remote Desktop Protocol (RDP) services with vulnerable securities as attack vectors.…
Estimated reading time: 13 minutes
SEQRITE Labs APT-Team has discovered multiple campaigns of APT SideCopy, targeting Indian government and defense entities in the past few months. The threat group is now exploiting the recent WinRAR vulnerability CVE-2023-38831 (See our advisory for more details) to deploy AllaKore RAT, DRat and additional payloads.…
Over the Kazuar’s Nest: Cracking Down on a Freshly Hatched Backdoor Used by Pensive Ursa (Aka Turla)
This post is also available in: 日本語 (Japanese)
Executive SummaryWhile tracking the evolution of Pensive Ursa (aka Turla, Uroburos), Unit 42 researchers came across a new, upgraded variant of Kazuar. Not only is Kazuar another name for the enormous and dangerous cassowary bird, Kazuar is an advanced and stealthy .NET…
Introduction
Read More When searching for necessary software, users often visit seemingly safe websites and torrent trackers to download, install and use programs. But are these programs truly safe? Illegal software could contain threats of all kinds, from miners to complex rootkits. The danger of malware spreading through dubious software downloads is not new and has now reached a global scale.…
Key FindingsCheck Point Research (CPR) is monitoring an ongoing Iranian espionage campaign by Scarred Manticore, an actor affiliated with the Ministry of Intelligence and Security (MOIS).
The attacks rely on LIONTAIL, an advanced passive malware framework installed on Windows servers. For stealth purposes, LIONTIAL implants utilize direct calls to Windows HTTP stack driver HTTP.sys…
Read More NetSupport Manager is one of the oldest third-party remote access tools still currently on the market with over 33 years of history. This is the first time we will report on a NetSupport RAT intrusion, but malicious use of this tool dates back to at least 2016.…
Affected Platforms: WindowsImpacted Users: Windows usersImpact: The information collected can be used for future attacksSeverity Level: Medium
In 2023, the InfoStealer market is a reasonably crowded affair. The likes of RedLine, Raccoon, and Vidar own a significant market share, with new entrants such as SaphireStealer appearing frequently.…
Cisco Talos assesses with high confidence that YoroTrooper, an espionage-focused threat actor first active in June 2022, likely consists of individuals from Kazakhstan based on their use of Kazakh currency and fluency in Kazakh and Russian. The actor also appears to have a defensive interest in the website of the Kazakhstani state-owned email service and has rarely targeted Kazakh entities.…
Read More Published On : 2023-10-20
Executive SummaryAt Cyfirma, we are committed to providing up-to-date information on the most prevalent threats and tactics used by malicious actors to target both organizations and individuals. In this analysis, we delve into a python-based information stealer, Akira. This report is a comprehensive investigation of this information stealer malware, unfolding its functionality and capabilities.…
Coauthored by Karthickkumar Kathiresan of Uptycs Threat Research Team…