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.
The Russia-based actor Star Blizzard (formerly known as SEABORGIUM, also known as Callisto Group/TA446/COLDRIVER/TAG-53/BlueCharlie) continues to successfully use spear-phishing attacks against targeted organizations and individuals in the UK, and other geographical areas of interest, for information-gathering activity.
The UK National Cyber Security Centre (NCSC), the US Cybersecurity and Infrastructure Security Agency (CISA), the US Federal Bureau of Investigation (FBI), the US National Security Agency (NSA), the US Cyber National Mission Force (CNMF), the Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC), the Canadian Centre for Cyber Security (CCCS), and the New Zealand National Cyber Security Centre (NCSC-NZ) assess that Star Blizzard is almost certainly subordinate to the Russian Federal Security Service (FSB) Centre 18.
Ransomware’s business model is a big part of what’s made it such a potent threat for so many years. However, we dug into multi-point ransomware attacks from 2023, and found another factor in ransomware’s staying power: a seemingly endless supply of new cyber crime groups starting ransomware operations.
Why established cyber security principles are still important when developing or implementing machine learning models.
A new generative AI cybercrime tool called WormGPT is making waves in underground forums. It empowers cybercriminals to automate phishing attacks.
Malicious packages on PyPI copy W4SP attacks to steal users’ credentials and crypto wallet data. This incident illustrates issues in open-source ecosystems.
Microsoft says the early June disruptions to its Microsoft’s flagship office suite — including the Outlook email apps — were denial-of-service attacks by a shadowy new hacktivist group. In a blog post published Friday evening after The Associated Press sought clarification on the sporadic but serious outages, Microsoft confirmed that that they were DDoS attacks by a group calling itself Anonymous Sudan, which some security researchers believe is Russia-affiliated. The software giant offered few details on the attack. It did not comment on how many customers were affected.
The Swiss government is under DDoS attacks, but several ransomware gangs have also turned their sights on other Swiss organizations.
Stealing data from Mac devices can unlock the door for both financially-motivated cybercrime and espionage. Learn how recent macOS malware does it.
Cyble analyzes how Threat Actors are using the recent buzz around ChatGPT to launch Phishing attacks using various methods.
Resecurity notified several data center organizations about malicious cyber activity targeting them and their customers. The initial early-warning threat notification about this activity was sent around September 2021 with further updates during 2022 and January, 2023. Recent cyber-attacks on cloud service providers (CSPs) and managed services providers (MSPs) saw bad actors attempt to leverage a weakness in their cybersecurity supply chain with the goal of stealing sensitive data from their target enterprises and government organizations. Data centers are meaningful targets for attackers and an important element of the enterprise supply chain.
We observed a recent spate of supply chain attacks attempting to exploit CVE-2021-35394, affecting IoT devices with chipsets made by Realtek.
Threema is a Swiss encrypted messaging application. It has more than 10 million users and more than 7000 on-premise customers. Prominent users of Threema include the Swiss Government and the Swiss Army, as well as the current Chancellor of Germany, Olaf Scholz. Threema has been widely advertised as a secure alternative to other messengers.
In our work, we present seven attacks against the cryptographic protocols used by Threema, in three distinct threat models. All the attacks are accompanied by proof-of-concept implementations that demonstrate their feasibility in practice.
With the ongoing war in Ukraine, in the Polish cyberspace, there are more and more occurrences classified as computer incidents, including attacks perpetrated by Russian hackers. This is a response of the Russian Federation to the Poland’s support provided to Ukraine and an attempt to destabilise the situation in our country.
US officials and allies have warned about attacks from XakNet and related groups.
We recently began scanning for middlebox devices that are vulnerable to Middlebox TCP reflection, which can be abused for DDoS amplification attacks. Our results are now shared daily, filtered for your network or constituency in the new Vulnerable DDoS Middlebox report. We uncover over 18,800,000 IPv4 addresses responding to our Middlebox probes. In some cases the amplification rates can exceed 10,000!
The hacker group Killnet claimed the attacks against Italy. How it's possible to detect the activities of the Mirai botnet used through Falco
A new reflection/amplification distributed denial of service (DDoS) vector with a record-breaking potential amplification ratio of 4,294,967,296:1 has been abused by attackers in the wild to launch multiple high-impact DDoS attacks.
ESET researchers uncover IsaacWiper, a new wiper that attacks Ukrainian organizations and HermeticWizard, a worm spreading HermeticWiper in local networks.
