Adware is a form of malware that targets users with unwanted advertisements, often disrupting their browsing experience. It typically infiltrates systems through software bundling, malicious websites, or deceptive downloads. Once installed, it may track user activity, collect sensitive data, and display intrusive ads, including pop-ups or banners. Some advanced adware variants can bypass security measures and establish persistence on devices, making removal challenging. Additionally, adware can create vulnerabilities that other malware can exploit, posing a significant risk to user privacy and system security.

Agent Tesla is spyware that collects information about the actions of its victims by recording keystrokes and user interactions. It is falsely marketed as a legitimate software on the dedicated website where this malware is sold.

Agent Tesla ist eine Spyware, die Informationen über die Aktionen ihrer Opfer sammelt, indem sie Tastatureingaben und Benutzerinteraktionen aufzeichnet. Sie wird auf der speziellen Website, auf der diese Malware verkauft wird, fälschlicherweise als legitime Software vermarktet.

AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions.

WarZone RAT is a remote access trojan, which is written in C++ and offered as a malware-as-a-service. It packs a wide range of capabilities, from stealing victims’ files and passwords to capturing desktop activities. WarZone RAT is primarily distributed via phishing emails and receives regular updates from its C2.

Chaos ransomware is a malware family known for its destructive capabilities and diverse variants. It first appeared in 2021 as a ransomware builder and later acted as a wiper. Unlike most ransomware strains that encrypt data to extort payment, early Chaos variants permanently corrupted files, while later versions adopted more conventional encryption techniques.

Cobalt Strike is a legitimate penetration software toolkit developed by Forta. But its cracked versions are widely adopted by bad actors, who use it as a C2 system of choice for targeted attacks.

DarkVision RAT is a low-cost, modular Remote Access Trojan that gives attackers remote control of infected Windows hosts. Initially observed around 2020 and sold in underground marketplaces, DarkVision has become notable for its full feature set (keylogging, screen capture, file theft, remote command execution and plugin support) and for being distributed via multi-stage loaders in recent campaigns.

DBatLoader is a loader malware used for distributing payloads of different types, including WarzoneRAT and Formbook. It is employed in multi-stage attacks that usually start with a phishing email carrying a malicious attachment.

DCrat, also known as Dark Crystal RAT, is a remote access trojan (RAT), which was first introduced in 2018. It is a modular malware that can be customized to perform different tasks. For instance, it can steal passwords, crypto wallet information, hijack Telegram and Steam accounts, and more. Attackers may use a variety of methods to distribute DCrat, but phishing email campaigns are the most common.

FormBook is a data stealer that is being distributed as a MaaS. FormBook differs from a lot of competing malware by its extreme ease of use that allows even the unexperienced threat actors to use FormBook virus.

A keylogger is a type of spyware that infects a system and has the ability to record every keystroke made on the device. This lets attackers collect personal information of victims, which may include their online banking credentials, as well as personal conversations. The most widespread vector of attack leading to a keylogger infection begins with a phishing email or link. Keylogging is also often present in remote access trojans as part of an extended set of malicious tools.

A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection.

LockBit, a ransomware variant, encrypts data on infected machines, demanding a ransom payment for decryption. Used in targeted attacks, It's a significant risk to organizations.

Lumma is an information stealer, developed using the C programming language. It is offered for sale as a malware-as-a-service, with several plans available. It usually targets cryptocurrency wallets, login credentials, and other sensitive information on a compromised system. The malicious software regularly gets updates that improve and expand its functionality, making it a serious stealer threat.

MassLogger is a credential stealer and keylogger first identified in April 2020. It has been actively used in cyber campaigns to exfiltrate sensitive information from compromised systems. It is designed for easy use by less tech-savvy actors and is prominent for the capability of spreading via USB drives. It targets both individuals and organizations in various industries, mostly in Europe and the USA.

Medusa is a ransomware malware family targeting businesses and institutions. Medusa encrypts crucial data, rendering it inaccessible, and attempts to pressure users to pay to regain control of their information. The group behind this malicious software hosts a TOR website where it shares the list of the organizations whose infrastructure has been compromised. This malware utilizes various tactics, including exploiting vulnerabilities and employs a unique file extension (".MEDUSA") to mark encrypted files.

NanoCore is a Remote Access Trojan or RAT. This malware is highly customizable with plugins which allow attackers to tailor its functionality to their needs. Nanocore is created with the .NET framework and it’s available for purchase for just $25 from its “official” website.

PureLogs is a stealer that collects a wide range of data from infected systems, including browser data, crypto wallets, PC configuration details, etc. It is delivered by PureCrypter, another malware that belongs to the Pure malware family. PureLogs is distributed based on a subscription model, allowing any threat actor to utilize it in their attacks.

Ransomware is a type of malicious software that locks users out of their system or data using different methods to force them to pay a ransom. Most often, such programs encrypt files on an infected machine and demand a fee to be paid in exchange for the decryption key. Additionally, such programs can be used to steal sensitive information from the compromised computer and even conduct DDoS attacks against affected organizations to pressure them into paying.

Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links.

RedLine Stealer is a malicious program that collects users’ confidential data from browsers, systems, and installed software. It also infects operating systems with other malware.

Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns.

STRRAT is a type of malicious software known as a remote access trojan (RAT). It gives attackers the ability to gain full control over a victim's computer system, enabling them to steal confidential information, spy on their activities, and drop other malware. STRRAT has been in operation since 2020 and is regularly updated to increase its complexity and make it more difficult to detect.

Vidar is a dangerous malware that steals information and cryptocurrency from infected users. It derives its name from the ancient Scandinavian god of Vengeance. This stealer has been terrorizing the internet since 2018.

WSHRAT is a Remote Access Trojan — a malware that allows the attackers to take over the infected machines. The RAT has been in circulation since 2013 and it is arguably most notable for the numerous versions released into the wild.