Windows CLFS and five exploits used by ransomware operators

In April 2023, we published a blog post about a zero-day exploit we discovered in ransomware attacks that was patched as CVE-2023-28252 after we promptly reported it to Microsoft. In that blog post, we mentioned that the zero-day exploit we discovered was very similar to other Microsoft Windows...

Windows CLFS and five exploits used by ransomware operators (Exploit #1 – CVE-2022-24521)

This is the second part of our study about the Common Log File System CLFS and five vulnerabilities in this Windows OS component that have been used in ransomware attacks throughout the year. Please read the previous part first if you havent already. You can skip to the other parts using this tab...

Windows CLFS and five exploits used by ransomware operators (Exploit #5 – CVE-2023-28252)

This is part six of our study about the Common Log File System CLFS and five vulnerabilities in this Windows OS component that have been used in ransomware attacks throughout the year. Please read the previous parts first if you havent already. You can go to other parts using this table of...

Unveiling NKAbuse: a new multiplatform threat abusing the NKN protocol

During an incident response performed by Kasperskys Global Emergency Response Team GERT and GReAT, we uncovered a novel multiplatform threat named "NKAbuse". The malware utilizes NKN technology for data exchange between peers, functioning as a potent implant, and equipped with both flooder and...

FakeSG campaign, Akira ransomware and AMOS macOS stealer

Introduction The crimeware landscape is diverse. Cybercriminals try to capitalize on their victims in every possible way by distributing various types of malware designed for different platforms. In recent months, we have written private reports on a wide range of topics, such as new cross-platfo...

What to do if your company was mentioned on Darknet?

Every year is abundant with major data leaks, biggest data breaches and hacks drawing massive media attention such as Medibank and Optus data breach, Twitter data breach, and Uber and Rockstar compromise in 2022 and in T-Mobile, MailChimp and OpenAI in 2023. But are we really conscious of the tru...

Story of the year: the impact of AI on cybersecurity

In the whirlwind of technological advancements and societal transformations, the term "AI" has undoubtedly etched itself into the forefront of global discourse. Over the past twelve months, this abbreviation has resonated across innumerable headlines, business surveys and tech reports, firmly...

New macOS Trojan-Proxy piggybacking on cracked software

Illegally distributed software historically has served as a way to sneak malware onto victims devices. Oftentimes, users are not willing to pay for software tools they need, so they go searching the Web for a "free lunch". They are an excellent target for cybercriminals who realize that an...

BlueNoroff: new Trojan attacking macOS users

We recently discovered a new variety of malicious loader that targets macOS, presumably linked to the BlueNoroff APT gang and its ongoing campaign known as RustBucket. The threat actor is known to attack financial organizations, particularly companies, whose activity is in any way related to...

Kaspersky Security Bulletin 2023. Statistics

All statistics in this report come from the Kaspersky Security Network KSN global cloud service, which receives information from components in our security solutions. The data was obtained from users who had given their consent to it being sent to KSN. Millions of Kaspersky users around the globe...

IT threat evolution in Q3 2023. Mobile statistics

IT threat evolution in Q3 2023 IT threat evolution in Q3 2023. Non-mobile statistics IT threat evolution in Q3 2023. Mobile statistics These statistics are based on detection verdicts of Kaspersky products received from users who consented to providing statistical data. Quarterly figures Accordin...

IT threat evolution Q3 2023

IT threat evolution in Q3 2023 IT threat evolution in Q3 2023. Non-mobile statistics IT threat evolution in Q3 2023. Mobile statistics Targeted attacks Unknown threat actor targets power generator with DroxiDat and Cobalt Strike Earlier this year, we reported on a new variant of SystemBC called...

IT threat evolution in Q3 2023. Non-mobile statistics

IT threat evolution in Q3 2023 IT threat evolution in Q3 2023. Non-mobile statistics IT threat evolution in Q3 2023. Mobile statistics These statistics are based on detection verdicts of Kaspersky products and services received from users who consented to providing statistical data. Quarterly...

Consumer cyberthreats: predictions for 2024

In our previous summary of consumer predictions, we delved into tactics that we expected scammers and cybercriminals to use in 2023. As anticipated, they capitalized on major events and cultural crazes, using tricks that ranged from fake Barbie doll deals to exploiting the buzz around long-awaite...

HrServ – Previously unknown web shell used in APT attack

Introduction In the course of our routine investigation, we discovered a DLL file, identified as hrserv.dll, which is a previously unknown web shell exhibiting sophisticated features such as custom encoding methods for client communication and in-memory execution. Our analysis of the sample led t...

Crimeware and financial cyberthreats in 2024

At Kaspersky, we constantly monitor the financial cyberthreat landscape, which includes threats to financial institutions, such as banks, and financially motivated threats, such as ransomware, that target a broader range of industries. As part of our Kaspersky Security Bulletin, we try to predict...

The dark side of Black Friday: decoding cyberthreats around the year’s biggest shopping season

As the annual Black Friday approaches, the digital landscape experiences an unprecedented surge in e-commerce and online shopping activity. Major sales aside, e-commerce is still a huge market. In 2022, global e-commerce retail revenue was estimated to reach $5.7 trillion worldwide, marking nearl...

Advanced threat predictions for 2024

Advanced persistent threats APTs are the most dangerous threats, as they employ complex tools and techniques, and often are highly targeted and hard to detect. Amid the global crisis and escalating geopolitical confrontations, these sophisticated cyberattacks are even more dangerous, as there is...

Ducktail fashion week

Ducktail is a malware family that has been active since the second half of 2021 and aims to steal Facebook business accounts. WithSecure and GridinSoft have covered Ducktail attacks: the infostealer spread under the guise of documents relating to well-known companies and brands projects and...

Modern Asian APT groups’ tactics, techniques and procedures (TTPs)

Almost every quarter, someone publishes major research focusing on campaigns or incidents that involve Asian APT groups. These campaigns and incidents target various organizations from a multitude of industries. Likewise, the geographic location of victims is not limited to just one region. This...

Gaming-related cyberthreats in 2023: Minecrafters targeted the most

Introduction and trends The gaming industry continues growing. The Newzoo report for 2023 reveals that two in five — more than three billion — across the globe are gamers, which is 6.3 percent more than last year. Globally, gaming revenue amounts to an estimated US$242.39 billion, with almost hal...

WhatsApp spy mod spreads through Telegram, attacks Arabic-speaking users

It is not rare that users of popular instant messaging services find the official client apps to be lacking in functionality. To address that problem, third-party developers come up with mods that offer sought-after features besides aesthetic upgrades. Unfortunately, some of these mods contain...

A cascade of compromise: unveiling Lazarus’ new campaign

Earlier this year, a software vendor was compromised by the Lazarus malware delivered through unpatched legitimate software. Whats remarkable is that these software vulnerabilities were not new, and despite warnings and patches from the vendor, many of the vendors systems continued to use the...

How to catch a wild triangle

In the beginning of 2023, thanks to our Kaspersky Unified Monitoring and Analysis Platform KUMA SIEM system, we noticed suspicious network activity that turned out to be an ongoing attack targeting the iPhones and iPads of our colleagues. The moment we understood that there was a clear pattern in...

StripedFly: Perennially flying under the radar

Introduction Its just another cryptocurrency miner… Nobody would even suspect the mining malware was merely a mask, masquerading behind an intricate modular framework that supports both Linux and Windows. It comes equipped with a built-in TOR network tunnel for communication with command servers,...

Stealer for PIX payment system, new Lumar stealer and Rhysida ransomware

Introduction As a cybersecurity company, Kaspersky is constantly dealing with known and brand-new malware samples. As part of our crimeware reporting service, we provide our customers with technical reports on the evolution of existing crimeware families, as well as newly emerging ones. In this...

The outstanding stealth of Operation Triangulation

Introduction In our previous blogpost on Triangulation, we discussed the details of TriangleDB, the main implant used in this campaign, its C2 protocol and the commands it can receive. We mentioned, among other things, that it is able to execute additional modules. We also mentioned that this...

Money-making scripts attack organizations

In April of this year, the FBI published an advisory on attacks targeting government, law enforcement, and non-profit organizations. Attackers download scripts onto victims devices, delivering several types of malware all at once. The main aim is to utilize company resources for mining, steal dat...

Updated MATA attacks industrial companies in Eastern Europe

In early September 2022, we discovered several new malware samples belonging to the MATA cluster. As we were collecting and analyzing the relevant telemetry data, we realized the campaign had been launched in mid-August 2022 and targeted over a dozen corporations in Eastern Europe from the oil an...

APT trends report Q3 2023

For more than six years, the Global Research and Analysis Team GReAT at Kaspersky has been publishing quarterly summaries of advanced persistent threat APT activity. These summaries are based on our threat intelligence research; and they provide a representative snapshot of what we have published...

A hack in hand is worth two in the bush

The ongoing conflict between Israel and Hamas has also extended into the digital domain. The involvement of hackers highlights the evolving nature of warfare in the 21st century, where traditional military operations are complemented by sophisticated cyber tactics, and where the boundaries betwee...

ChatGPT at work: how chatbots help employees, but threaten business

Workhorse Only a few months ago, ChatGPT and other chatbots based on large language models LLMs were still a novelty. Users enjoyed using them to compose poems and lyrics in the style of famous artists which left Nick Cave, for example, decidedly unimpressed, researchers debated blowing up data...

ToddyCat: Keep calm and check logs

ToddyCat is an advanced APT actor that we described in a previous publication last year. The group started its activities in December 2020 and has been responsible for multiple sets of attacks against high-profile entities in Europe and Asia. Our first publication was focused on their main tools,...

A cryptor, a stealer and a banking trojan

Introduction As long as cybercriminals want to make money, theyll keep making malware, and as long as they keep making malware, well keep analyzing it, publishing reports and providing protection. Last month we covered a wide range of cybercrime topics. For example, we published a private report ...

QR codes in email phishing

QR codes are everywhere: you can see them on posters and leaflets, ATM screens, price tags and merchandise, historical buildings and monuments. People use them to share information, promote various online resources, pay for their goodies, and pass verification. And yet you dont see lots of QR cod...

Overview of IoT threats in 2023

IoT devices routers, cameras, NAS boxes, and smart home components multiply every year. Statista portal predicts their number will exceed 29 billion by 2030. As connected device numbers increase, so does the need for protection against various threats. The first-ever large-scale malware attacks o...

Threat landscape for industrial automation systems. Statistics for H1 2023

Global threat statistics In the first half of 2023, the percentage of ICS computers on which malicious objects were blocked decreased from H2 2022 by just 0.3 pp to 34%. Percentage of ICS computers on which malicious objects were blocked, by half year That said, he percentage of attacked ICS...

Free Download Manager backdoored – a possible supply chain attack on Linux machines

UPDATE 13.09.2023. Free Download Manager team issued an official statement regarding this incident. Over the last few years, Linux machines have become a more and more prominent target for all sorts of threat actors. According to our telemetry, 260,000 unique Linux samples appeared in the first...

From Caribbean shores to your devices: analyzing Cuba ransomware

Introduction Knowledge is our best weapon in the fight against cybercrime. An understanding of how various gangs operate and what tools they use helps build competent defenses and investigate incidents. This report takes a close look at the history of the Cuba group, and their attack tactics,...

Evil Telegram doppelganger attacks Chinese users

UPDATE 11.09.2023. Google has informed us that all the apps were deleted from the Google Play store A while ago we discovered a bunch of Telegram mods on Google Play with descriptions in traditional Chinese, simplified Chinese and Uighur. The vendor says these are the fastest apps which use a...

IT threat evolution in Q2 2023. Non-mobile statistics

IT threat evolution in Q2 2023 IT threat evolution in Q2 2023. Non-mobile statistics IT threat evolution in Q2 2023. Mobile statistics These statistics are based on detection verdicts of Kaspersky products and services received from users who consented to providing statistical data. Quarterly...

IT threat evolution in Q2 2023. Mobile statistics

IT threat evolution in Q2 2023 IT threat evolution in Q2 2023. Non-mobile statistics IT threat evolution in Q2 2023. Mobile statistics These statistics are based on detection verdicts of Kaspersky products received from users who consented to providing statistical data. Quarterly figures Accordin...

IT threat evolution in Q2 2023

IT threat evolution in Q2 2023 IT threat evolution in Q2 2023. Non-mobile statistics IT threat evolution in Q2 2023. Mobile statistics Targeted attacks Gopuram backdoor deployed through 3CX supply-chain attack Earlier this year, a Trojanized version of the 3CXDesktopApp, a popular VoIP program, w...

Lockbit leak, research opportunities on tools leaked from TAs

Lockbit is one of the most prevalent ransomware strains. It comes with an affiliate ransomware-as-a-service RaaS program offering up to 80% of the ransom demand to participants, and includes a bug bounty program for those who detect and report vulnerabilities that allow files to be decrypted...

Phishing with hacked sites

Phishers want their fake pages to cost minimum effort but generate as much income as possible, so they eagerly use various tools and techniques to evade detection, and save time and money. Examples include automation with phishing kits or Telegram bots. Another tactic, popular with scammers big a...

Focus on DroxiDat/SystemBC

Recently we pushed a report to our customers about an interesting and common component of the cybercrime malware set - SystemBC. And, in much the same vein as the 2021 Darkside Colonial Pipeline incident, we found a new SystemBC variant deployed to a critical infrastructure target. This time, the...

Common TTPs of attacks against industrial organizations

In 2022 we investigated a series of attacks against industrial organizations in Eastern Europe. In the campaigns, the attackers aimed to establish a permanent channel for data exfiltration, including data stored on air-gapped systems. Based on similarities found between these campaigns and...

What’s happening in the world of crimeware: Emotet, DarkGate and LokiBot

Introduction The malware landscape keeps evolving. New families are born, while others disappear. Some families are short-lived, while others remain active for quite a long time. In order to follow this evolution, we rely both on samples that we detect and our monitoring efforts, which cover...

Anomaly detection in certificate-based TGT requests

One of the most complex yet effective methods of gaining unauthorized access to corporate network resources is an attack using forged certificates. Attackers create such certificates to fool the Key Distribution Center KDC into granting access to the target companys network. An example of such an...

APT trends report Q2 2023

For more than six years, the Global Research and Analysis Team GReAT at Kaspersky has been publishing quarterly summaries of advanced persistent threat APT activity. These summaries are based on our threat intelligence research; and they provide a representative snapshot of what we have published...