Analysis of the latest Mirai wave exploiting TBK DVR devices with CVE-2024-3721

The abuse of known security flaws to deploy bots on vulnerable systems is a widely recognized problem. Many automated bots constantly search the web for known vulnerabilities in servers and devices connected to the internet, especially those running popular services. These bots often carry Remote...

IT threat evolution in Q1 2025. Non-mobile statistics

IT threat evolution in Q1 2025. Non-mobile statistics IT threat evolution in Q1 2025. Mobile statistics The statistics in this report are based on detection verdicts returned by Kaspersky products unless otherwise stated. The information was provided by Kaspersky users who consented to sharing...

Triada strikes back

Introduction Older versions of Android contained various vulnerabilities that allowed gaining root access to the device. Many malicious programs exploited these to elevate their system privileges and gain persistence. The notorious Triada Trojan also used this attack vector. With time, the...

APT trends report Q3 2024

Kaspersky's Global Research and Analysis Team GReAT has been releasing quarterly summaries of advanced persistent threat APT activity for over seven years now. Based on our threat intelligence research, these summaries offer a representative overview of what we've published and discussed in more...

The Crypto Game of Lazarus APT: Investors vs. Zero-days

Introduction Lazarus APT and its BlueNoroff subgroup are a highly sophisticated and multifaceted Korean-speaking threat actor. We closely monitor their activities and quite often see them using their signature malware in their attacks — a full-feature backdoor called Manuscrypt. According to our...

ICS and OT threat predictions for 2024

We do not expect rapid changes in the industrial cyberthreat landscape in 2024. Most of the below-described trends have been observed before, many for some years. However, some of them have reached a critical mass of creeping changes, which could lead to a qualitative shift in the threat landscap...

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...

Good, Perfect, Best: how the analyst can enhance penetration testing results

Penetration testing is something that many of those who know what a pentest is see as a search for weak spots and well-known vulnerabilities in clients infrastructure, and a bunch of copied-and-pasted recommendations on how to deal with the security holes thus discovered. In truth, it is not so...

How much security is enough?

According to a prominent Soviet science fiction writer, beauty is a fine line, a razors edge between two opposites locked in a never-ending battle. Today, we would put it less poetically as an ideal compromise between contradictions. An elegant, or beautiful, design is one that allows reaching th...

Choosing Christmas gifts for kids: Squid Game and Huggy Wuggy are trending

As the holidays approach, many of us are trying to figure out what to buy our family and friends. We especially want to make this time of year festive for kids. If you want to delight children, you need to know what theyre interested in: what LEGO set theyre dreaming about, what superheroes theyd...

The story of the year: ransomware in the headlines

In the past twelve months, the word "ransomware" has popped up in countless headlines worldwide across both print and digital publications: The Wall Street Journal, the BBC, the New York Times. It is no longer just being discussed by CISOs and security professionals, but politicians, school...

GReAT thoughts: Awesome IDA Pro plugins

The Global Research & Analysis Team here at Kaspersky has a tradition of meeting up once a month and sharing cutting-edge research, interesting techniques and useful tools. We recently took the unprecedented decision to make our internal meetings public for a few months and present them as a seri...

An analysis of incidents at Brazilian educational institutions

Introduction Because of the amount of data that can be obtained and the high impact that successful attacks may have, educational institutions are frequent targets of cybercriminals. Both public and private schools and universities rely on software for managing personally identifiable information...

OpenClaw: risks for the users and how to mitigate them

OpenClaw, which was previously known as Clawdbot and Moltbot, is today one of the most successful and fast‑growing ecosystems for AI agents, recognized worldwide. The project quickly became popular with users because of its flexibility and ability to solve fairly complex tasks that previously...

BeatBanker: A dual‑mode Android Trojan

Recently, we uncovered BeatBanker, an Android‑based malware campaign targeting Brazil. It spreads primarily through phishing attacks via a website disguised as the Google Play Store. To achieve their goals, the malicious APKs carry multiple components, including a cryptocurrency miner and a banki...

Evasive Panda APT poisons DNS requests to deliver MgBot

Introduction The Evasive Panda APT group also known as Bronze Highland, Daggerfly, and StormBamboo has been active since 2012, targeting multiple industries with sophisticated, evolving tactics. Our latest research June 2025 reveals that the attackers conducted highly-targeted campaigns, which...

Maverick: a new banking Trojan abusing WhatsApp in a mass-scale distribution

A malware campaign was recently detected in Brazil, distributing a malicious LNK file using WhatsApp. It targets mainly Brazilians and uses Portuguese-named URLs. To evade detection, the command-and-control C2 server verifies each download to ensure it originates from the malware itself. The whol...

RevengeHotels: a new wave of attacks leveraging LLMs and VenomRAT

Background RevengeHotels, also known as TA558, is a threat group that has been active since 2015, stealing credit card data from hotel guests and travelers. RevengeHotels' modus operandi involves sending emails with phishing links which redirect victims to websites mimicking document storage. The...

Russian organizations targeted by backdoor masquerading as secure networking software updates

As we were looking into a cyberincident in April 2025, we uncovered a rather sophisticated backdoor. It targeted various large organizations in Russia, spanning the government, finance, and industrial sectors. While our investigation into the attack associated with the backdoor is still ongoing, ...

Angry Likho: Old beasts in a new forest

Angry Likho referred to as Sticky Werewolf by some vendors is an APT group we've been monitoring since 2023. It bears a strong resemblance to Awaken Likho, which we've analyzed before, so we classified it within the Likho malicious activity cluster. However, Angry Likho's attacks tend to be...

New SteelFox Trojan mimics software activators, stealing sensitive data and mining cryptocurrency

Introduction In August 2024, our team identified a new crimeware bundle, which we named "SteelFox". Delivered via sophisticated execution chains including shellcoding, this threat abuses Windows services and drivers. It spreads via forums posts, torrent trackers and blogs, imitating popular...

Developing and prioritizing a detection engineering backlog based on MITRE ATT&CK

Detection is a traditional type of cybersecurity control, along with blocking, adjustment, administrative and other controls. Whereas before 2015 teams asked themselves what it was that they were supposed to detect, as MITRE ATT&CK evolved, SOCs were presented with practically unlimited space for...

Managed Detection and Response in 2023

Managed Detection and Response in 2023 PDF Alongside other security solutions, we provide Kaspersky Managed Detection and Response MDR to organizations worldwide, delivering expert monitoring and incident response 24/7. The task involves collecting telemetry for analysis by both machine-learning ...

Threat landscape for industrial automation systems for H1 2022

H1 2022 in numbers Geography In H1 2022, malicious objects were blocked at least once on 31.8% of ICS computers globally. Percentage of ICS computers on which malicious objects were blocked For the first time in five years of observations, the lowest percentage in the ‎first half of the year was...

DDoS attacks in Q4 2017

News overview In terms of news about DDoS attacks, the last quarter of 2017 was livelier than the previous one. Some major botnets were discovered and destroyed. For instance, early December saw the FBI, Microsoft, and Europol team up to knock out the Andromeda botnet, in operation since 2011. In...

IT threat evolution in Q1 2026. Non-mobile statistics

IT threat evolution in Q1 2026. Non-mobile statistics IT threat evolution in Q1 2026. Mobile statistics The statistics in this report are based on detection verdicts returned by Kaspersky products unless otherwise stated. The information was provided by Kaspersky users who consented to sharing...

GodRAT – New RAT targeting financial institutions

Summary In September 2024, we detected malicious activity targeting financial trading and brokerage firms through the distribution of malicious .scr screen saver files disguised as financial documents via Skype messenger. The threat actor deployed a newly identified Remote Access Trojan RAT named...

ToolShell: a story of five vulnerabilities in Microsoft SharePoint

On July 19–20, 2025, various security companies and national CERTs published alerts about active exploitation of on-premise SharePoint servers. According to the reports, observed attacks did not require authentication, allowed attackers to gain full control over the infected servers, and were...

StaryDobry ruins New Year’s Eve, delivering miner instead of presents

Introduction On December 31, cybercriminals launched a mass infection campaign, aiming to exploit reduced vigilance and increased torrent traffic during the holiday season. Our telemetry detected the attack, which lasted for a month and affected individuals and businesses by distributing the XMRi...

Crimeware and financial cyberthreats in 2023

A look back on the year 2022 and what to expect in 2023 Every year, as part of the Kaspersky Security Bulletin, we predict which major trends will be followed in the coming year by attackers, who target financial organizations. The predictions, based on our extensive experience, help individuals...

Cybersecurity threats: what awaits us in 2023?

Knowing what the future holds can help with being prepared for emerging threats better. Every year, Kaspersky experts prepare forecasts for different industries, helping them to build a strong defense against any cybersecurity threats they might face in the foreseeable future. Those predictions...

Managed detection and response in 2021

Kaspersky Managed Detection and Response MDR helps organizations to complement existing detection capabilities or to expand limited in-house resources to protect their infrastructure from the growing number and complexity of threats in real time. We collect telemetry from clients networks and...

Nhash: petty pranks with big finances

According to our data, cryptocurrency miners are rapidly gaining in popularity. In an earlier publication we noted that cybercriminals were making use of social engineering to install this sort of software on users' computers. This time, we'd like to dwell more on how exactly the computers of...

Threat Landscape for Industrial Automation Systems in H1 2017

Kaspersky Lab Industrial Control Systems Cyber Emergency Response Team Kaspersky Lab ICS CERT publishes the results of its research on the threat landscape for industrial automation systems for the first six months of 2017. All statistical data used in this report was collected using the Kaspersk...

NightEagle targets Russian companies

Over the past year, our Global Emergency Response Team GERT has investigated several incidents involving the NightEagle group also tracked as APT-Q-95. This group has been active since at least 2023 and originally focused on organizations in Asia. We have now identified attacks by the group...

OceanLotus suspected of using PyPI to deliver ZiChatBot malware

Introduction Through our daily threat hunting, we noticed that, beginning in July 2025, a series of malicious wheel packages were uploaded to PyPI the Python Package Index. We shared this information with the public security community, and the malware was removed from the repository. We submitted...

Silver Fox uses the new ABCDoor backdoor to target organizations in Russia and India

In December 2025, we detected a wave of malicious emails designed to look like official correspondence from the Indian tax service. A few weeks later, in January 2026, a similar campaign began targeting Russian organizations. We have attributed this activity to the Silver Fox threat group. Both...

Incident response analyst report 2024

Kaspersky provides rapid and fully informed incident response services to organizations, ensuring impact analysis and effective remediation. Our annual report shares anonymized data about the investigations carried out by the Kaspersky Global Emergency Response Team GERT, as well as statistics an...

Threat landscape for industrial automation systems in Q3 2024

Statistics across all threats In the third quarter of 2024, the percentage of ICS computers on which malicious objects were blocked decreased by 1.5 pp to 22% when compared to the previous quarter. Percentage of ICS computers on which malicious objects were blocked, by quarter, 2022–2024 Compared...

Horns&Hooves campaign delivers NetSupport RAT and BurnsRAT

Recent months have seen a surge in mailings with lookalike email attachments in the form of a ZIP archive containing JScript scripts. The script files – disguised as requests and bids from potential customers or partners – bear names such as "Запрос цены и предложения от Индивидуального...

Threat landscape for industrial automation systems for H2 2022

Year 2022 in numbers Parameter | H1 2022 | H2 2022 | 2022 ---|---|---|--- Percentage of attacked ICS computers globally | 31.8% | 34.3% | 40.6% Main threat sources Internet | 16.5% | 19.9% | 24.0% Email clients | 7.0% | 6.4% | 7.9% Removable devices | 3.5% | 3.8% | 5.2% Network folders | 0.6% |...

NullMixer: oodles of Trojans in a single dropper

Executive Summary NullMixer is a dropper leading to an infection chain of a wide variety of malware families. NullMixer spreads via malicious websites that can be found mainly via search engines. These websites are often related to crack, keygen and activators for downloading software illegally,...

Kimsuky’s GoldDragon cluster and its C2 operations

Kimsuky also known as Thallium, Black Banshee and Velvet Chollima is a prolific and active threat actor primarily targeting Korea-related entities. Like other sophisticated adversaries, this group also updates its tools very quickly. In early 2022, we observed this group was attacking the media a...

How and why do we attack our own Anti-Spam?

We often use machine-learning ML technologies to improve the quality of cybersecurity systems. But machine-learning models can be susceptible to attacks that aim to "fool" them into delivering erroneous results. This can lead to significant damage to both our company and our clients. Therefore, i...

SAS 2021: Fireside chat with Chris Bing

How to build up a fascinating story from a hardcore APT report? Where to find details and how to work with information sources? Sitting by the virtual fireside, Brian Bartholomew Kaspersky GReAT and Christopher Bing Reuters will discuss how malware researchers and investigative journalists can he...

Summer 2021: Friday Night Funkin’, Måneskin and pop it

This summer, several events that were postponed from 2020 due to the pandemic took place. Some of them interested children, while others barely registered by them. It is worth noting that childrens hobbies typically do not change from winter to summer — the only difference is that they devote mor...

Oh, what a boot-iful mornin’

In mid-April, our threat monitoring systems detected malicious files being distributed under the name "on the new initiative of the World Bank in connection with the coronavirus pandemic" in Russian with the extension EXE or RAR. Inside the files was the well-known Rovnix bootkit. There is nothin...

Kaspersky Security Bulletin: Story of the year 2017

Download the Kaspersky Security Bulletin: Story of the year 2017 Introduction: what we learned in 2017 In 2017, the ransomware threat suddenly and spectacularly evolved. Three unprecedented outbreaks transformed the landscape for ransomware, probably forever. The attacks targeted businesses and...

Group Policy hijacked: PAYLOAD ransomware weaponizes Active Directory GPO

Executive summary In April 2026, we at Kaspersky's Global Emergency Response Team GERT responded to a security incident at a manufacturing organization in the Middle East. The threat actor obtained domain admin-equivalent control of the organization's Active Directory environment and authored a...

Spam and phishing in 2025

The year in figures 44.99% of all emails sent worldwide and 43.27% of all emails sent in the Russian web segment were spam 32.50% of all spam emails were sent from Russia Kaspersky Mail Anti-Virus blocked 144,722,674 malicious email attachments Our Anti-Phishing system thwarted 554,002,207 attemp...