Email Campaign Spreads StrRAT Fake-Ransomware RAT

An email campaign is delivering a Java-based remote access trojan RAT that can not only steal credentials and take control of systems, but also presents as fake ransomware, Microsoft researchers have discovered. The Microsoft Security Intelligence MSI team has outlined details of a “massive email...

Lemon Duck Cryptojacking Botnet Changes Up Tactics

The Lemon Duck cryptocurrency-mining botnet has added the ProxyLogon group of exploits to its bag of tricks, targeting Microsoft Exchange servers. That’s according to researchers at Cisco Talos, who said that the cybercrime group behind Lemon Duck has also added the Cobalt Strike attack framework...

PortDoor Espionage Malware Takes Aim at Russian Defense Sector

A previously undocumented backdoor malware, dubbed PortDoor, is being used by a probable Chinese advanced persistent threat actor APT to target the Russian defense sector, according to researchers. The Cybereason Nocturnus Team observed the cybercriminals specifically going after the Rubin Design...

Researchers Uncover Stealthy Linux Malware That Went Undetected for 3 Years

A previously undocumented Linux malware with backdoor capabilities has managed to stay under the radar for about three years, allowing the threat actor behind the operation to harvest and exfiltrate sensitive information from infected systems. Dubbed "RotaJakiro" by researchers from Qihoo 360...

Over 750,000 Users Downloaded New Billing Fraud Apps From Google Play Store

Researchers have uncovered a new set of fraudulent Android apps in the Google Play store that were found to hijack SMS message notifications for carrying out billing fraud. The apps in question primarily targeted users in Southwest Asia and the Arabian Peninsula, attracting a total of 700,000...

SUSE: Security Advisory (SUSE-SU-2018:1375-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

AzureC2Relay - An Azure Function That Validates And Relays Cobalt Strike Beacon Traffic By Verifying The Incoming Requests Based On A Cobalt Strike Malleable C2 Profile

AzureC2Relay is an Azure Function that validates and relays Cobalt Strike beacon traffic by verifying the incoming requests based on a Cobalt Strike Malleable C2 profile. Any incoming requests that do not share the profiles user-agent, URI paths, headers, and query parameters, will be redirected ...

Hackers Tampered With APKPure Store to Distribute Malware Apps

APKPure, one of the largest alternative app stores outside of the Google Play Store, was infected with malware this week, allowing threat actors to distribute Trojans to Android devices. In a supply-chain attack similar to that of German telecommunications equipment manufacturer Gigaset, the...

Alert — There's A New Malware Out There Snatching Users' Passwords

A previously undocumented malware downloader has been spotted in the wild in phishing attacks to deploy credential stealers and other malicious payloads. Dubbed "Saint Bot," the malware is said to have first appeared on the scene in January 2021, with indications that it's under active developmen...

Experts uncover a new Banking Trojan targeting Latin American users

Researchers on Tuesday revealed details of a new banking trojan targeting corporate users in Brazil at least since 2019 across various sectors such as engineering, healthcare, retail, manufacturing, finance, transportation, and government. Dubbed "Janeleiro" by Slovak cybersecurity firm ESET, the...

BadOutlook - (Kinda) Malicious Outlook Reader

A simple PoC which leverages the Outlook Application Interface COM Interface to execute shellcode on a system based on a specific trigger subject line. By utilizing the Microsoft.Office.Interop.Outlook namespace, developers can represent the entire Outlook Application or at least according to...

Nim-Based Malware Loader Spreads Via Spear-Phishing Emails

The TA800 threat group is distributing a malware loader, which researchers call NimzaLoader, via ongoing, highly-targeted spear-phishing emails. While previous Twitter analysis identified this loader as a mere variant of TA800’s existing BazaLoader malware, new research cites evidence that...

Researchers Unveil New Linux Malware Linked to Chinese Hackers

Cybersecurity researchers on Wednesday shed light on a new sophisticated backdoor targeting Linux endpoints and servers that's believed to be the work of Chinese nation-state actors. Dubbed "RedXOR" by Intezer, the backdoor masquerades as a polkit daemon, with similarities found between the malwa...

FIN8 Hackers Return With More Powerful Version of BADHATCH PoS Malware

Threat actors known for keeping a low profile do so by ceasing operations for prolonged periods in between to evade attracting any attention as well as constantly refining their toolsets to fly below the radar of many detection technologies. One such group is FIN8, a financially motivated threat...

D-Link, IoT Devices Under Attack By Tor-Based Gafgyt Variant

Researchers have discovered what they say is the first variant of the Gafgyt botnet family to cloak its activity using the Tor network. Gafgyt, a botnet that was uncovered in 2014, has become infamous for launching large-scale distributed denial-of-service DDoS attacks. Researchers first discover...

SharpSphere - .NET Project For Attacking vCenter

SharpSphere gives red teamers the ability to easily interact with the guest operating systems of virtual machines managed by vCenter. It uses the vSphere Web Services API and exposes the following functions: Command & Control - In combination with F-Secure's C3, SharpSphere provides C&C into VMs...

New SUNSHUTTLE Second-Stage Backdoor Uncovered Targeting U.S.-Based Entity; Possible Connection to UNC2452

Executive Summary In August 2020, a U.S.-based entity uploaded a new backdoor that we have named SUNSHUTTLE to a public malware repository. SUNSHUTTLE is a second-stage backdoor written in GoLang that features some detection evasion capabilities. Mandiant observed SUNSHUTTLE at a victim compromis...

BlackMamba - C2/post-exploitation Framework

BlackMamba is a multi client C2/post exploitation framework with some spyware features. Powered by Python 3.8.6 and QT Framework. Some of BlackMamba features are: Multi Client - Supports multiple client connections at the same time. Real Time Communication Updates - Real time communication and...

Bitcoins, Blockchains, and Botnets

A recent piece of malware from a known crypto mining botnet campaign has started leveraging Bitcoin blockchain transactions in order to hide its backup C2 IP address. It's a simple, yet effective, way to defeat takedown attempts...

Various Malware Lurks in Discord App to Target Gamers

A rise in online gaming, tied to pandemic-mandated social distancing, has led to a spike in criminals targeting the demographic. The latest effort to exploit the trend is malicious files planted inside the Discord platform designed to trick users into downloading malware-laced files. Researchers...