Malware Families

According to Broadcom, Pulsar RAT is a derivation of Quasar RAT, which has miscellaneous functionality including keylogging, cryptocurrency wallet clipping, infostealing, file management, remote shell and command execution, among others. The data theft capabilities of this malware include collection and exfiltration of sensitive information such as credentials, cookies, cryptowallets, session files and data stored in the system web browsers, etc.

According to Mandiant, GRAYRABBIT is a lightweight and simple backdoor that supports simple file operation, system information collection, running modularized plugins, and executing a remote command shell.

According to its Github repository, SharpHound is a C# Data Collector for BloodHound.

Rubeus is a C# toolset for raw Kerberos interaction and abuses.

Gigabud is the name of an Android Remote Access Trojan (RAT) Android that can record the victim's screen and steal banking credentials by abusing the Accessibility Service. Gigabud masquerades as banking, shopping, and other applications. Threat actors have been observed using deceptive websites to distribute Gigabud RAT.

Amatera is a stealer written in C++. It conducts anti-sandbox analysis before enumerating browsers, exfiltrating found cryptocurrency files/wallets and possibly credentials.

A botnet with P2P and centralized C&C capabilities.

According to BitSight, BADBOX is a large-scale cybercriminal operation selling off-brand Android TV boxes, smartphones, and other Android electronics with preinstalled malware.

SentinelOne describes this as a malware written in Go, mixing own custom code with code from public repositories.

F-Secure states that the Sality virus family has been circulating in the wild as early as 2003. Over the years, the malware has been developed and improved with the addition of new features, such as rootkit or backdoor functionality, and so on, keeping it an active and relevant threat despite the relative age of the malware. Modern Sality variants also have the ability to communicate over a peer-to-peer (P2P) network, allowing an attacker to control a botnet of Sality-infected machines. The combined resources of the Sality botnet may also be used by its controller(s) to perform other malicious actions, such as attacking routers. Infection Sality viruses typically infect executable files on local, shared and removable drives. In earlier variants, the Sality virus simply added its own malicious code to the end of the infected (or host) file, a technique known as prepending. The viral code that Sality inserts is polymorphic, a form of complex code that is intended to make analysis more difficult. Earlier Sality variants were regarded as technically sophisticated in that they use an Entry Point Obscuration (EPO) technique to hide their presence on the system. This technique means that the virus inserts a command somewhere in the middle of an infected file's code, so that when the system is reading the file to execute it and comes to the command, it forces the system to 'jump' to the malware's code and execute that instead. This technique was used to make discovery and disinfection of the malicious code harder. Payload Once installed on the computer system, Sality viruses usually also execute a malicious payload. The specific actions performed depend on the specific variant in question, but generally Sality viruses will attempt to terminate processes, particularly those related to security programs. The virus may also attempt to open connections to remote sites, download and run additional malicious files, and steal data from the infected machine.

aka TVRAT, TVSPY, TeamViewerENT

According to Enigmasoft, DarkVNC malware is a hacking tool that is available for purchase online. it is can be used as a Virtual Network Computing service, which means that the attackers can get full access to the targeted system via this malware. However, unlike a genuine Virtual Network Computing utility, the DarkVNC threat operates in the background silently. Therefore, it is highly likely that the victims may not notice that their systems have been compromised.

aka Havokiz

First released in October 2022, the Havoc C2 Framework is a flexible post-exploitation framework written in Golang, C++, and Qt, with agents called 'Demons' written in C and ASM, created by @C5pider. Designed to support red team engagements and adversary emulation, it offers a robust set of capabilities tailored for offensive security operations. The framework, which is under active development, utilizes HTTP(s) and SMB as communication protocols for its implants. Havoc can generate implants, known as Demons, in several formats including EXE, DLL, and Shellcode. A notable feature of Havoc is its ability to bypass EDR by employing advanced evasion techniques such as sleep obfuscation, return address stack spoofing, and indirect syscalls. This capability enhances its effectiveness in evading detection and circumventing security measures.

According to PCrisk, Rhadamanthys is a stealer-type malware, and as its name implies - it is designed to extract data from infected machines. At the time of writing, this malware is spread through malicious websites mirroring those of genuine software such as AnyDesk, Zoom, Notepad++, and others. Rhadamanthys is downloaded alongside the real program, thus diminishing immediate user suspicion. These sites were promoted through Google ads, which superseded the legitimate search results on the Google search engine.

aka OneKeyLocker

Ransomware

TAMECAT is PowerShell-based backdoor with modular components designed to facilitate data exfiltration and remote control

aka Nancrat, NanoCore

Nanocore is a Remote Access Tool used to steal credentials and to spy on cameras. It as been used for a while by numerous criminal actors as well as by nation state threat actors.

aka Bladabindi, Lime-Worm

RedPacket Security describes NJRat as "a remote access trojan (RAT) has capabilities to log keystrokes, access the victim's camera, steal credentials stored in browsers, open a reverse shell, upload/download files, view the victim's desktop, perform process, file, and registry manipulations, and capabilities to let the attacker update, uninstall, restart, close, disconnect the RAT and rename its campaign ID. Through the Command & Control (CnC) server software, the attacker has capabilities to create and configure the malware to spread through USB drives." It is supposedly popular with actors in the Middle East. Similar to other RATs, many leaked builders may be backdoored.

aka Cryptear, FuckUnicorn

HiddenTear is an open source ransomware developed by a Turkish programmer and later released as proof of concept on GitHub. The malware generates a local symmetric key in order to encrypt a configurable folder (/test was the default one) and it sends it to a centralized C&C server. Due to its small payload it was used as real attack vector over email phishing campaigns. Variants are still used in attacks.

aka ReBot, TeaBot, Toddler

aka CoinMiner

According to ESET, first seen in-the-wild on 26th May, 2017, the malicious mining software is a fork of a legitimate open source Monero CPU miner called xmrig.

SpyMax is a popular Android surveillance tool. Its predecessor, SpyNote, was one of the most widely used spyware frameworks.

According to Mandiant, MISTPEN is a lightweight backdoor written in C whose main functionality is to download and execute Portable Executable (PE) files. The backdoor is a modification of the open-source Notepad++ binhex plugin v2.0.0.1 where the creation of a thread that executes the malicious code has been added to the DllMain function.

aka ScoringMathTea

According to ESET Research, ScoringMathTea is a RAT that offers the attackers full control over the compromised machine. Its first appearance dates to late 2022, when its dropper was uploaded to VirusTotal. Soon after, it was seen in the wild, and since then in multiple attacks attributed to Lazarus’ Operation DreamJob campaigns, which makes it the attacker’s payload of choice for already three years. It uses compromised servers for C&C communication, with the server part usually stored under the WordPress folder containing design templates or plugins.

According to Nextron, Lynx ransomware is a sophisticated malware threat that has been active since mid-2024. Lynx has claimed over 20 victims across a range of industries. Once it infiltrates a system, it encrypts critical files, appending a ‘.lynx’ extension, and deletes backup files like shadow copies to hinder recovery. Uniquely, it also sends the ransom note to available printers, adding an unexpected element to its attack strategy. This malware shares similarities with previous INC ransomware, indicating that they bought INC ransomware source code.