New EX-22 Tool Empowers Hackers with Stealthy Ransomware Attacks on Enterprises

A new post-exploitation framework called EXFILTRATOR-22 aka EX-22 has emerged in the wild with the goal of deploying ransomware within enterprise networks while flying under the radar. "It comes with a wide range of capabilities, making post-exploitation a cakewalk for anyone purchasing the tool,...

New EX-22 Tool Empowers Hackers with Stealthy Ransomware Attacks on Enterprises

A new post-exploitation framework called EXFILTRATOR-22 aka EX-22 has emerged in the wild with the goal of deploying ransomware within enterprise networks while flying under the radar. "It comes with a wide range of capabilities, making post-exploitation a cakewalk for anyone purchasing the tool,...

Threat Actors Adopt Havoc Framework for Post-Exploitation in Targeted Attacks

An open source command-and-control C2 framework known as Havoc is being adopted by threat actors as an alternative to other well-known legitimate toolkits like Cobalt Strike, Sliver, and Brute Ratel. Cybersecurity firm Zscaler said it observed a new campaign in the beginning of January 2023...

Threat Actors Adopt Havoc Framework for Post-Exploitation in Targeted Attacks

An open source command-and-control C2 framework known as Havoc is being adopted by threat actors as an alternative to other well-known legitimate toolkits like Cobalt Strike, Sliver, and Brute Ratel. Cybersecurity firm Zscaler said it observed a new campaign in the beginning of January 2023...

Chinese Hackers Targeting South American Diplomatic Entities with ShadowPad

Microsoft on Monday attributed a China-based cyber espionage actor to a set of attacks targeting diplomatic entities in South America. The tech giant's Security Intelligence team is tracking the cluster under the emerging moniker DEV-0147, describing the activity as an "expansion of the group's...

Gootkit Malware Adopts New Tactics to Attack Healthcare and Finance Firms

The Gootkit malware is prominently going after healthcare and finance organizations in the U.S., U.K., and Australia, according to new findings from Cybereason. The cybersecurity firm said it investigated a Gootkit incident in December 2022 that adopted a new method of deployment, with the actors...

Hackers Exploit Vulnerabilities in Sunlogin to Deploy Sliver C2 Framework

Threat actors are leveraging known flaws in Sunlogin software to deploy the Sliver command-and-control C2 framework for carrying out post-exploitation activities. The findings come from AhnLab Security Emergency response Center ASEC, which found that security vulnerabilities in Sunlogin, a remote...

What Old is New Again and What's Old is Me?

Welcome to this weeks edition of the Threat Source newsletter. Whats old is new again and whats old is still old. The fact that we are seeing a comeback of this USB thumb drive nonsense is giving me heartburn, and a headache, and my left eye is twitching … and maybe numbness in my legs? Yes, I am...

Australian Healthcare Sector Targeted in Latest Gootkit Malware Attacks

A recent wave of Gootkit malware loader attacks has targeted the Australian healthcare sector by leveraging legitimate tools like VLC Media Player. Gootkit, also called Gootloader, is known to employ search engine optimization SEO poisoning tactics aka spamdexing for initial access. It typically...

Havoc - Modern and malleable post-exploitation command and control framework

Havoc is a modern and malleablepost-exploitation command and control framework, created by @C5pider. Havoc is in an early state of release. Breaking changes may be made to APIs/core structures as the framework matures. Support Consider supporting C5pider on Patreon/Github Sponsors. Additional...

Guidance on Microsoft Signed Drivers Being Used Maliciously

Executive Summary: Microsoft was recently informed that drivers certified by Microsoft’s Windows Hardware Developer Program were being used maliciously in post-exploitation activity. Microsoft has completed its investigation and determined that the activity was limited to the abuse of several...

Dissecting the Empire C2 Framework

Introduction In this blog we will be taking a quick dive into Empire, a popular open-source post-exploitation framework. Empire provides an adversary with the capability to expand his foothold in a victim’s environment by leveraging hundreds of modules, RATs in multiple languages and stealthy C2...

Pyramid - A Tool To Help Operate In EDRs' Blind Spots

What is it Pyramid is a set of Python scripts and module dependencies that can be used to evade EDRs. The main purpose of the tool is to perform offensive tasks by leveraging some Python evasion properties and looking as a legit Python application usage. This can be achieved because: 1. the Pytho...

SharpSCCM - A C# Utility For Interacting With SCCM

SharpSCCM is a post-exploitation tool designed to leverage Microsoft Endpoint Configuration Manager a.k.a. ConfigMgr, formerly SCCM for lateral movement and credential gathering without requiring access to the SCCM administration console GUI. SharpSCCM was initially created to execute user huntin...

Nighthawk Likely to Become Hackers' New Post-Exploitation Tool After Cobalt Strike

A nascent and legitimate penetration testing framework known as Nighthawk is likely to gain threat actors' attention for its Cobalt Strike-like capabilities. Enterprise security firm Proofpoint said it detected the use of the software in mid-September 2022 by a red team with a number of test emai...

Veeam Backup and Replication Credentials Dump

This module exports and decrypts credentials from Veeam Backup & Replication and Veeam ONE Monitor Server to a CSV file; it is intended as a post-exploitation module for Windows hosts with either of these products installed. The module supports automatic detection of VBR / Veeam ONE and is capabl...

Stopping C2 communications in human-operated ransomware through network protection

Command-and-control C2 servers are an essential part of ransomware, commodity, and nation-state attacks. They are used to control infected devices and perform malicious activities like downloading and launching payloads, controlling botnets, or commanding post-exploitation penetration frameworks ...

Raspberry Robin Operators Selling Cybercriminals Access to Thousands of Endpoints

The Raspberry Robin worm is becoming an access-as-a-service malware for deploying other payloads, including IcedID, Bumblebee, TrueBot aka Silence, and Clop ransomware. It is "part of a complex and interconnected malware ecosystem, with links to other malware families and alternate infection...

What Does The Fox Hack? Breaking Down the Anonymous Fox F-Automatical Script

While performing routine security research, one of our threat analysts discovered the latest version of a Command and Control C2 script, which is referred to as F-Automatical within the script’s code and was commonly known as FoxAuto in older versions. This is the seventh version of this automati...

Critical RCE Vulnerability Discovered in Popular Cobalt Strike Hacking Software

HelpSystems, the company behind the Cobalt Strike software platform, has released an out-of-band security update to address a remote code execution vulnerability that could allow an attacker to take control of targeted systems. Cobalt Strike is a commercial red-team framework that's mainly used f...