Pirate matryoshka

The use of torrent trackers to spread malware is a well-known practice; cybercriminals disguise it as popular software, computer games, media files, and other sought-after content. We detected one such campaign early this year, when The Pirate Bay TPB tracker filled up with harmful files used to...

Exploits and vulnerabilities in Q3 2024

Q3 2024 saw multiple vulnerabilities discovered in Windows and Linux subsystems that are not standard for cyberattacks. This is because operating system developers have been releasing new security mitigations for whole sets of vulnerabilities in commonly used subsystems. For example, a log...

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...

CowerSnail, from the creators of SambaCry

We recently reported about SambaCry, a new family of Linux Trojans exploiting a vulnerability in the Samba protocol. A week later, Kaspersky Lab analysts managed to detect a malicious program for Windows that was apparently created by the same group responsible for SambaCry. It was the common C&C...

Spam and phishing in 2023

The year in figures 45.60% of all email sent worldwide and 46.59% of all email sent in the Runet the Russian web segment was spam 31.45% of all spam email was sent from Russia Kaspersky Mail Anti-Virus blocked 135,980,457 malicious email attachments Our Anti-Phishing system thwarted 709,590,011...

Looking for sophisticated malware in IoT devices

One of the motivations for this post is to encourage other researchers who are interested in this topic to join in, to share ideas and knowledge and to help build more capabilities in order to better protect our smart devices. Research background Smart watches, smart home devices and even smart...

Cyberthreats to financial institutions 2019: overview and predictions

Kaspersky Security Bulletin: Threat Predictions for 2019 Threat predictions for industrial security in 2019 Cryptocurrency threat predictions for 2019 Introduction – key events in 2018 The past year has been extremely eventful in terms of the digital threats faced by financial institutions:...

IT threat evolution Q3 2017

Targeted attacks and malware campaigns Re-enter the dragon In July, we reported on the recent activities of a targeted attack group called 'Spring Dragon' also known as LotusBlossom, whose activities data back to 2012. Spring Dragon makes extensive use of spear-phishing and watering-hole attacks...

Bitscout – The Free Remote Digital Forensics Tool Builder

Being a malware researcher means you are always busy with the struggle against mountains of malware and cyberattacks around the world. Over the past decade, the number of daily new malware findings raised up to unimaginable heights: with hundreds of thousands of malware samples per day! However,...

Ymir: new stealthy ransomware in the wild

Introduction In a recent incident response case, we discovered a new and notable ransomware family in active use by the attackers, which we named "Ymir". The artifact has interesting features, including a large set of operations performed in memory with the help of the malloc , memmove and memcmp...

Pig in a poke: smartphone adware

Our support team continues to receive more and more requests from users complaining about intrusive ads on their smartphones from unknown sources. In some cases, the solution is quite simple. In others, the task is far harder: the adware plants itself in the system partition, and trying to get ri...

Loncom packer: from backdoors to Cobalt Strike

The previous story described an unusual way of distributing malware under disguise of an update for an expired security certificate. After the story went out, we conducted a detailed analysis of the samples we had obtained, with some interesting findings. All of the malware we examined from the...

Octopus-infested seas of Central Asia

For the last two years we have been monitoring a Russian-language cyberespionage actor that focuses on Central Asian users and diplomatic entities. We named the actor DustSquad and have provided private intelligence reports to our customers on four of their campaigns involving custom Android and...

Campaigns abusing corporate trusted infrastructure hunt for corporate credentials on ICS networks

Main facts Kaspersky ICS CERT has uncovered a number of spyware campaigns targeting industrial enterprises. Operators of these campaigns hunt for corporate credentials, aiming to commit financial fraud or to sell them to other malicious actors. Spearphishing emails with malicious attachments sent...

Cyberthreats to financial organizations in 2021

It is hard to believe that a year has gone since our last article on financial attacks and our predictions for 2020. It has been a tough one, but first things first. Let us review the forecasts we made at the end of 2019 and see how accurate we were. Then we will go through the key events of 2020...

Kids on the Web in 2020

Technology is what is saving us from a complete change in the way of life in a world of a raging pandemic. It keeps the educational process going, relieves the shortage of human communication and helps us to live life as fully as possible given the isolation and social distancing. Many adults, an...

iOS exploit chain deploys LightSpy feature-rich malware

A watering hole was discovered on January 10, 2020 utilizing a full remote iOS exploit chain to deploy a feature-rich implant named LightSpy. The site appears to have been designed to target users in Hong Kong based on the content of the landing page. Since the initial activity, we released two...

Cybersecurity Research During the Coronavirus Outbreak and After

Virus outbreaks are always gruesome: people, animals or computer systems get infected within a short time. Of course, viruses spreading across our physical world always take priority over the virtual world. Nevertheless, everyone should keep doing their job, which includes all kinds of malware...

Tropic Trooper spies on government entities in the Middle East

Executive summary Tropic Trooper also known as KeyBoy and Pirate Panda is an APT group active since 2011. This group has traditionally targeted sectors such as government, healthcare, transportation and high-tech industries in Taiwan, the Philippines and Hong Kong. Our recent investigation has...

Mallox ransomware: in-depth analysis and evolution

Mallox is a sophisticated and dangerous family of malicious software that has been causing significant damage to organizations worldwide. In 2023, this ransomware strain demonstrated an uptick in attacks, the overall number of discovered Mallox samples exceeding 700. In the first half of 2024, th...

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...

Dissecting TriangleDB, a Triangulation spyware implant

Over the years, there have been multiple cases when iOS devices were infected with targeted spyware such as Pegasus, Predator, Reign and others. Often, the process of infecting a device involves launching a chain of different exploits, e.g. for escaping the iMessage sandbox while processing a...

First Annual Cyberwarcon

Cyberwarcon is a brand new event organized yesterday in Arlington, Virginia, and delivered eight hours of fantastic content. "CyberwarCon is a one-day conference in the Washington D.C. area focused on the specter of destruction, disruption, and malicious influence on our society through cyber...

Introducing WhiteBear

As a part of our Kaspersky APT Intelligence Reporting subscription, customers received an update in mid-February 2017 on some interesting APT activity that we called WhiteBear. Much of the contents of that report are reproduced here. WhiteBear is a parallel project or second stage of the Skipper...

ShrinkLocker: Turning BitLocker into ransomware

Introduction Attackers always find creative ways to bypass defensive features and accomplish their goals. This can be done with packers, crypters, and code obfuscation. However, one of the best ways of evading detection, as well as maximizing compatibility, is to use the operating systems own...

Windows CLFS and five exploits used by ransomware operators (Exploit #2 – September 2022)

This is the third 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 parts first if you havent already. You can skip to the other parts using this tab...

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,...

Kaspersky Security Bulletin 2019. Advanced threat predictions for 2020

Nothing is more difficult than making predictions. Rather than trying to gaze into a crystal ball, we will be making educated guesses based on what has happened during the last 12 months, to see where we can see trends that might be exploited in the near future. This is what we think might happen...

BusyGasper – the unfriendly spy

In early 2018 our mobile intruder-detection technology was triggered by a suspicious Android sample that, as it turned out, belonged to an unknown spyware family. Further investigation showed that the malware, which we named BusyGasper, is not all that sophisticated, but demonstrates some unusual...

Top 10 web application vulnerabilities in 2021–2023

To help companies with navigating the world of web application vulnerabilities and securing their own web applications, the Open Web Application Security Project OWASP online community created the OWASP Top Ten. As we followed their rankings, we noticed that the way we ranked major vulnerabilitie...

Ransomware updates & 1-day exploits

Introduction In our crimeware reporting service, we analyze the latest crime-related trends we come across. Last month, we again posted a lot on ransomware, but we also covered other subjects, such as 1-day exploits. In this blogpost, we provide excerpts from these reports. For questions or more...

ShadowPad in corporate networks

ShadowPad, part 2: Technical Details PDF In July 2017, during an investigation, suspicious DNS requests were identified in a partner's network. The partner, which is a financial institution, discovered the requests originating on systems involved in the processing of financial transactions. Furth...

APT trends report Q2 2024

For over six years now, Kasperskys Global Research and Analysis Team GReAT has been sharing quarterly updates on advanced persistent threats APTs. These summaries draw on our threat intelligence research, offering a representative overview of what weve published and discussed in more detail in ou...

The Telegram phishing market

Telegram has been gaining popularity with users around the world year by year. Common users are not the only ones who have recognized the messaging apps handy features — cybercrooks have already made it a branch of the dark web, their Telegram activity soaring since late 2021. The service is...

Andariel deploys DTrack and Maui ransomware

On July 7, 2022, the CISA published an alert, entitled, "North Korean State-Sponsored Cyber Actors Use Maui Ransomware To Target the Healthcare and Public Health Sector," related to a Stairwell report, "Maui Ransomware." Later, the Department of Justice announced that they had effectively clawed...

The SessionManager IIS backdoor

Following on from our earlier Owowa discovery, we continued to hunt for more backdoors potentially set up as malicious modules within IIS, a popular web server edited by Microsoft. And we didnt come back empty-handed… In 2021, we noticed a trend among several threat actors for deploying a backdoo...

Hunting APTs with YARA

For the past few years, we have been spreading our knowledge and experience of using YARA, often called a pattern matching swiss knife for malware researchers and everyone else. Most of the time, this took the form of the Kaspersky training course titled, "Hunting APTs with YARA Like a GReAT...

DDoS attacks in Q2 2018

News overview Q2 2018 news includes: non-standard use of old vulnerabilities, new botnets, the cutthroat world of cryptocurrencies, a high-profile DDoS attack or not with a political subtext, the slashdot effect, some half-baked attempts at activism, and a handful arrests. But first things first...

The return of Mamba ransomware

At the end of 2016, there was a major attack against San Francisco's Municipal Transportation Agency. The attack was done using Mamba ransomware. This ransomware uses a legitimate utility called DiskCryptor for full disk encryption. This month, we noted that the group behind this ransomware has...

APT group HoneyMyte upgrades CoolClient: the backdoor gets a kernel-level Windows rootkit

Introduction CoolClient is a backdoor family attributed to the HoneyMyte APT group also known as Mustang Panda that has been used in their cyber-espionage campaigns targeting organizations across Asia and Russia. It supports such capabilities as keylogging, clipboard theft, credential harvesting,...

Argamal: Malware hidden in hentai games

In April 2026, we discovered a new malware campaign targeting players of "hentai" games. Once launched, the infected games install a previously unknown malicious implant on the user's machine. After a few days, the implant downloads and executes a Trojan, resulting in full system compromise and...

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...

Operation Triangulation: iOS devices targeted with previously unknown malware

While monitoring the network traffic of our own corporate Wi-Fi network dedicated for mobile devices using the Kaspersky Unified Monitoring and Analysis Platform KUMA, we noticed suspicious activity that originated from several iOS-based phones. Since it is impossible to inspect modern iOS device...

LuminousMoth APT: Sweeping attacks for the chosen few

APT actors are known for the frequently targeted nature of their attacks. Typically, they will handpick a set of targets that in turn are handled with almost surgical precision, with infection vectors, malicious implants and payloads being tailored to the victims identities or environment. Its no...

AZORult spreads as a fake ProtonVPN installer

AZORult has its history. However, a few days ago, we discovered what appears to be one of its most unusual campaigns: abusing the ProtonVPN service and dropping malware via fake ProtonVPN installers for Windows. Screenshot of a fake ProtonVPN website The campaign started at the end of November 20...

Tens of thousands per Gram

Looking at Instagram one morning, I spotted several posts from some fairly well-known people in certain circles who had invested in an ICO held by Telegram. Interesting, I thought to myself. I fancy a piece of that. Only I was pretty sure that if Telegram was indeed holding an ICO, it would be a...

The GitVenom campaign: cryptocurrency theft using GitHub

In our modern world, it's difficult to underestimate the impact that open-source code has on software development. Over the years, the global community has managed to publish a tremendous number of projects with freely accessible code that can be viewed and enhanced by anyone on the planet. Very...

Windows CLFS and five exploits used by ransomware operators (Exploit #4 – CVE-2023-23376)

This is part five 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 skip to the other parts using this table of...

BlueNoroff introduces new methods bypassing MoTW

BlueNoroff group is a financially motivated threat actor eager to profit from its cyberattack capabilities. We have published technical details of how this notorious group steals cryptocurrency before. We continue to track the groups activities and this October we observed the adoption of new...

COMpfun successor Reductor infects files on the fly to compromise TLS traffic

In April 2019, we discovered new malware that compromises encrypted web communications in an impressive way. Analysis of the malware allowed us to confirm that the operators have some control over the target's network channel and could replace legitimate installers with infected ones on the fly...