HZ Rat backdoor for macOS harvests data from WeChat and DingTalk
Kaspersky experts discovered a macOS version of the HZ Rat backdoor, which collects user data from WeChat and DingTalk messengers.
Telegram CEO’s brother also wanted by French authorities
Arrest warrants for Pavel and Nikolai Durov were issued months earlier than previously known.
Unprecedented 3.15 Billion Packet Rate DDoS Attack Mitigated by Global Secure Layer
On August 25th 2024, Global Secure Layer mitigated the largest packet rate DDoS attack recorded against our platform
Threat Actors Retaliate After Durov’s Arrest
Threat Actors Retaliate After Durov’s Arrest Discover the latest security threats and database leaks, including unauthorized VPN access and email breaches, in the cyber underground world.Stay informed about emerging cyber threats, such as unauthorized access to databases and sensitive information leaks, affecting global companies and organizations.Learn about the latest cyber incidents, including DDoS attacks and malware threats targeting cryptocurrency wallets and financial institutions.
New 0-Day Attacks Linked to China’s ‘Volt Typhoon’
Malicious hackers are exploiting a zero-day vulnerability in Versa Director, a software product used by many Internet and IT service providers. Researchers believe the activity is linked to Volt Typhoon, a Chinese cyber espionage group focused on infiltrating critical U.S.…
Paris court explains why it's arrested Telegram founder, Pavel Durov
When Pavel Durov, founder and CEO of messaging app Telegram, was arrested on August 24, French authorities did not respond to requests for comment. The
Malicious Plugin
Pidgin is a universal chat client, allowing you to consolidate all your different messaging apps into a single tool.
17-Year-old Student Exposes Germany's 'Secret' Pirate Site Blocklist
A 17-year-old student has launched a dedicated portal to exposing Germany's 'secret' pirate site blocklist to the public.
WordPress Websites Used to Distribute ClearFake Trojan Malware
Learn about the ClearFake Trojan malware distributed via WordPress sites, its tactics, and how to safeguard your online experience.
Is Telegram really an encrypted messaging app? – A Few Thoughts on Cryptographic Engineering
This blog is reserved for more serious things, and ordinarily I wouldn't spend time on questions like the above. But much as I'd like to spend my time writing about exciting topics, sometimes the world requires a bit of what Brad Delong calls "Intellectual Garbage Pickup," namely: correcting wrong, or mostly-wrong ideas that spread unchecked…
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Telegram says CEO has ‘nothing to hide’ after being arrested in France
The messaging app says “it is absurd to claim that a platform or its owner are responsible for abuse of that platform” after CEO Pavel Durov was arrested by French authorities.
The gift that keeps on giving: A new opportunistic Log4j campaign
In this post, we analyze a new opportunistic exploitation campaign based on the Log4j vulnerability.
BlackSuit Ransomware
- In December 2023, we observed an intrusion that started with the execution of a Cobalt Strike beacon and ended in the deployment of BlackSuit ransomware. The threat actor leveraged various tools, including Sharphound, Rubeus, SystemBC, Get-DataInfo.ps1, Cobalt Strike, and ADFind, along with built-in system tools. Command and control traffic was proxied through CloudFlare to conceal their Cobalt Strike server. Fifteen days after initial access, BlackSuit ransomware was deployed by copying files over SMB to admin shares and executing them through RDP sessions. Three rules were added to our private ruleset related to this case.
MacOS X Malware Development
In today’s post, We’ll explore the process of designing and developing malware for macOS, which is a Unix-based operating system. We’ll use a classic approach to understanding Apple’s internals. To follow along, you should have a basic understanding of exploitation, as well as knowledge of C and Python programming, and some familiarity with low-level assembly language. While the topics may be advanced, I’ll do my best to present them smoothly.
OpenSSH Backdoors
Imagine this: an OpenSSH backdoor is discovered, maintainers rush to push out a fixed release package, security researchers trade technical details on mailing lists to analyze the backdoor code. Speculation abounds on the attribution and motives of the attacker, and the tech media pounces on the story. A near miss of epic proportions, a blow to the fabric of trust underlying open source development, a stark reminder of the risks of supply-chain attacks. Equal measures brilliant and devious.
Unveiling sedexp: A Stealthy Linux Malware Exploiting udev Rules
Stroz Friedberg identified a stealthy malware, dubbed “sedexp,” utilizing Linux udev rules to achieve persistence and evade detection. This advanced threat, active since 2022, hides in plain sight while providing attackers with reverse shell capabilities and advanced concealment tactics.
Microsoft Copilot Studio Vulnerability Led to Information Disclosure
A vulnerability in Microsoft Copilot Studio could be exploited to access sensitive information on the internal infrastructure used by the service, Tenable reports. The flaw, tracked as CVE-2024-38206 (CVSS score of 8.5) and described as a ‘critical’ information disclosure bug, has been fully mitigated, Microsoft said in an August 6 advisory.
Major Backdoor in Millions of RFID Cards Allows Instant Cloning
French security services firm Quarkslab has made an eye-popping discovery: a significant backdoor in millions of contactless cards made by Shanghai Fudan Microelectronics Group, a leading chip manufacturer in China.
Xeon Sender | SMS Spam Shipping Multi-Tool Targeting SaaS Credentials
Cloud attack tool has been repurposed by multiple threat actors to push SMS spam and smishing campaigns through major SaaS providers.
Finding Malware: Unveiling NUMOZYLOD with Google Security Operations
Welcome to the Finding Malware Series The “Finding Malware,“ blog series is authored to empower the Google Security Operations community to
TodoSwift Disguises Malware Download Behind Bitcoin PDF
A new piece of malware that we're calling TodoSwift downloads its malicious payload alongside a seemingly legitimate piece of content about cryptocurrency.
Cthulhu Stealer malware aimed to take macOS user data
Researchers have discovered another data-seizing macOS malware, with "Cthulhu Stealer" sold to online criminals for just $500 a month.
From the Depths: Analyzing the Cthulhu Stealer Malware for macOS
Cado Security has identified a malware-as-a-service (MaaS) targeting macOS users named “Cthulhu Stealer”.
FIN7: The Truth Doesn't Need to be so STARK
First and foremost, our thanks go to the threat research team at Silent Push and the security team at Stark Industries Solutions (referred to as “Stark” from this point forwards) for their enthusiastic cooperation in the ‘behind the scenes’ efforts of this blog post.IntroductionIn our opening statement, we also introduce the subject of this post: the cross-team and cross-organization collaborative efforts of Silent Push, Stark, and Team Cymru in taking action against a common and well-known adve
Qilin ransomware caught stealing credentials stored in Google Chrome
Familiar ransomware develops an appetite for passwords to third-party sites
NGate Android malware relays NFC traffic to steal cash
ESET Research uncovers Android malware that relays NFC data from victims’ payment cards, via victims’ mobile phones, to the device of a perpetrator waiting at an ATM.
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No one’s ready for this
With AI photo editing getting easy and convincing, the world isn’t prepared for an era where photographs aren’t to be trusted.
Security Advisory CVE-2024-40766
An improper access control vulnerability has been identified in the SonicWall SonicOS management access, potentially leading to unauthorized resource access and in specific conditions, causing the firewall to crash. This issue affects SonicWall Firewall Gen 5 and Gen 6 devices, as well as Gen 7 devices running SonicOS 7.0.1-5035 and older versions.
SolarWinds Trust Center Security Advisories | CVE-2024-28987
The SolarWinds Web Help Desk (WHD) software is affected by a hardcoded credential vulnerability, allowing remote unauthenticated user to access internal functionality and modify data.
Windows 0-day was exploited by North Korea to install advanced rootkit
FudModule rootkit burrows deep into Windows, where it can bypass key security defenses.