CVE-2023-46747 : Unauthenticated Remote Code Execution in F5 BIG-IP - Malware Analysis - Malware Analysis, News and Indicators
On 26th October, 2023 F5 released a security advisory about a critical unauthenticated remote code execution vulnerability, CVE-2023-46747, in F5’s BIG-IP configuration utility. This vulnerability could allow unauthent…
The ticking time bomb of Microsoft Exchange Server 2013
I monitor (in an amateur, clueless way) ransomware groups in my spare time, to see what intelligence can be gained from looking at victim orgs and what went wrong. Basically, I’m a giant big dork with too much free time. I’ve discovered two organisations with ransomware incidents, where the entry point appears to have been Exchange Server 2013 with Outlook Web Access enabled, where all available security updates were applied.
Reconstructing the Attack from a 4th party collector’s point of view Hamid Kashfi 18th December, Predator Sparrows launched a second attack against the fuel distribution system in Iran, similar to their previous operation in 2021. Since 2021, Iranian officials or third-party security vendors have not published any analysis or technical details about the original attack, which is not unusual. Their screenshots from the latest attacks provide some clues that only confirm our previous work, indicating connections to the “Yaas Arghavani” company, a VSAT and POS service provider for the fuel distribution system. The following is an old draft from December 2021, which I wrote for peer eyes rather than public view. The original draft focused on the first attack against the fuel distribution system. Still, some remarks remain valid and relevant to the recent attack on 18 Dec 2023, as little has changed regarding how the system works. The same infrastructure, same suppliers, and same 3rd party vendors, so we are likely just talking about a different attack vector and entry point from the previous case. I will probably draft a new note about the recent attack from scratch soon and when more details are gathered rather than updating the old speculative work.
Rhadamanthys v0.5.0 - a deep dive into the stealer’s components
The Rhadamanthys stealer is a multi-layer malware, sold on the black market, and frequently updated. Recently the author released a new major version, 0.5.0. In the new version, the malware expands its stealing capabilities and also introduces some general-purpose spying functions. A new plugin system makes the malware expandable for specific distributor needs. The custom executable formats, used for modules, are unchanged since our last publication (XS1 and XS2 formats are still in distribution). Check Point Research (CPR) provides a comprehensive review of the agent modules, presenting their capabilities and implementation, with a focus on how the stealer components are loaded and how they work.
Apache Struts is a popular Java web application framework. On December 7, 2023 Apache published an advisory for CVE-2023-50164, a Struts parameter pollution vu…
Scanning Danger: Unmasking the Threats of Quishing
In this blog, we explore the modus operandi of threat actors utilizing QR code attacks, by examining recent and widespread quishing campaigns detected by Trellix.
Star Blizzard increases sophistication and evasion in ongoing attacks
Microsoft Threat Intelligence continues to track and disrupt malicious activity attributed to a Russian state-sponsored actor we track as Star Blizzard, who has improved their detection evasion capabilities since 2022 while remaining focused on email credential theft against targets.
What it means — CitrixBleed ransomware group woes grow as over 60 credit unions, hospitals, financial services and more breached in US. | by Kevin Beaumont | Dec, 2023 | DoublePulsar
Credit union technology firm Trellance own Ongoing Operations LLC, and provide a platform called Fedcomp — used by double digit number of other credit unions across the United States. This Fedcomp…
In the heart of International Geneva, a diverse ecosystem thrives, housing 38 international organizations (IOs), 432 non-governmental organizations (NGOs), and several hundred associations active at an international level, all united by a shared mission: to make the world a place of peace and justice. NGOs are the unsung heroes, addressing armed conflicts, natural disasters, and humanitarian crises, championing human rights, and advancing the Sustainable Development Goals (SDGs). Like many other organizations, NGOs heavily rely on technology, which is critical for projecting their activities globally in real time. Yet, in today’s digital landscape, this reality brings its own set of challenges.
Gamaredon, also known as Primitive Bear, ACTINIUM, and Shuckworm, is a unique player in the Russian espionage ecosystem that targets a wide variety of almost exclusively Ukrainian entities. While researchers often struggle to uncover evidence of Russian espionage activities, Gamaredon is notably conspicuous. The group behind it conducts large-scale campaigns while still primarily focusing on regional targets. The Security Service of Ukraine (SSU) identified the Gamaredon personnel as Russian Federal Security Service (FSB) officers.
Understanding the Phobos affiliate structure and activity
Cisco Talos identified the most prolific Phobos variants, TTPs and affiliate structure, based on their activity and analysis of over 1,000 samples from VirusTotal dating back to 2019. We assess with moderate confidence Eking, Eight, Elbie, Devos and Faust are the most common variants
There are several malicious fake updates campaigns being run across thousands of compromised websites. Here I will walk through one with a pattern that doesn’t match with others I’ve been tracking. This campaign appears to have started around July 19th, 2023. Based on a search on PublicWWW of the injection base64 there are at least 434 infected sites. I’m calling this one ClearFake until I see a previously used name for it. The name is a reference to the majority of the Javascript being used without obfuscation. I say majority because base64 is used three times. That’s it. All the variable names are in the clear, no obfuscation on them. One noticeable difference from SocGholish is that there appears to be no tracking of visits by IP or cookies. As an analyst you can you go back to the compromised site over and over coming from the same IP and not clearing your browser cache. This also means the site owner is more likely to see the infection as well.
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. This document is marked TLP:CLEAR--Recipients may share this information without restriction. Sources may use TLP:CLEAR when information carries minimal or no foreseeable risk of misuse, in accordance with applicable rules and procedures for public release. Subject to standard copyright rules, TLP:CLEAR information may be shared without restriction. For more information on the Traffic Light Protocol (TLP), see http://www.cisa.gov/tlp.
Nothing new, still broken, insecure by default since then: Python's e-mail libraries and certificate verification
Python’s e-mail libraries smtplib, imaplib, and poplib do not verify server certificates unless a proper SSL context is passed to the API. This leads to security problems.
Octo Tempest crosses boundaries to facilitate extortion, encryption, and destruction
Microsoft has been tracking activity related to the financially motivated threat actor Octo Tempest, whose evolving campaigns represent a growing concern for many organizations across multiple industries.
Apache ActiveMQ is a message broker service, designed to act as a communication bridge between disparate services. Developed in Java, it can broker multiple pr…
Undisclosed requests may bypass configuration utility authentication, allowing an attacker with network access to the BIG-IP system through the management port…
Learn about the fake Google Chrome update malware, a common form of website malware that tricks users into downloading a remote access trojan disguised as a browser update. Understand how it works, its impact on websites, and how to protect your site from such threats. Stay updated on the latest malware trends with Sucuri.
Triangulation: validators, post-compromise activity and modules | Securelist
In this report Kaspersky shares insights into the validation components used in Operation Triangulation, TriangleDB implant post-compromise activity, as well as details of some additional modules.
Another plastic surgery practice appears to have been hit — this time by Hunters International
On October 17, the FBI issued a Public Service Announcement, Cybercriminals are Targeting Plastic Surgery Offices and Patients. Five days later, DataBreaches learned that there had been another attack on a plastic surgery practice where patient data had allegedly been stolen and is in danger of being leaked publicly. It would not be surprising if the FBI knew about the attack and that it was the impetus for the newly released PSA.
BLOODALCHEMY is a new, actively developed, backdoor that leverages a benign binary as an injection vehicle, and is a part of the REF5961 intrusion set.
90s Vulns In 90s Software (Exim) - Is the Sky Falling?
A few days ago, ZDI went public with no less than six 0days in the popular mail server Exim. Ranging from ‘potentially world-ending' through to ‘a bit of a damp squib’, these bugs were apparently discovered way back in June 2022 (!) - but naturally got caught up in the void between the ZDI and Exim for quite some time. Mysterious void.
Mirai Botnet's New Wave: hailBot,kiraiBot, catDDoS, and Their Fierce Onslaught - NSFOCUS, Inc., a global network and cyber security leader, protects enterprises and carriers from advanced cyber attacks.
Several new Mirai variant families were widely deployed in September 2023, among which hailBot, kiraiBot and catDDoS are the most active.
