Forgot About Default Accounts? No Worries, GoScanSSH Didn’t

This blog post was authored by Edmund Brumaghin, Andrew Williams, and Alain Zidouemba. Executive Summary During a recent Incident Response IR engagement, Talos identified a new malware family that was being used to compromise SSH servers exposed to the internet. This malware, which we have named...

Simple IOC and Incident Response Scanner: Loki

LOKI is a free and simple IOC scanner, a complete rewrite of main analysis modules of our full featured APT Scanner THOR. IOC stands for „Indicators of Compromise“. These indicators can be derived from published incident reports, forensic analyses or malware sample collections in your Lab. LOKI...

Threat Analysis: Recent Attack Technique Attempts to Bypass Whitelisting by Leveraging MS Office Document Macros, MSBuild, Certutil

Carbon Black continues to monitor and track evolving techniques that attackers leverage. Over the last several years, there has been an increase in attackers leveraging open source frameworks and proof of concept POC techniques that are released publically by researchers. A document was recently...

Sophisticated RedDrop Malware Targets Android Phones

A sophisticated strain of mobile malware targeting Android devices can extract sensitive data and audio recordings, run up premium SMS charges and then tries to extort money from victims. According to security firm Wandera the malware, dubbed RedDrop, is being distributed inside 53 Android...

Massive Spam Campaign Targets Unpatched Systems

Cybercriminals are leveraging a recently patched critical Adobe Flash Player vulnerability in a massive spam campaign targeting unpatched computers. According to cybersecurity firm Morphisec, cybercriminals are blasting spam messages that urge recipients to click a link to download a Word documen...

Siemens RUGGEDCOM / Rugged Operating System Detection (Telnet)

Detection of Siemens RUGGEDCOM devices and the Rugged Operating System. The script sends a telnet connection request to the device and attempts to detect the presence of devices running RUGGEDCOM / Rugged Operating System and to extract its version. SPDX-FileCopyrightText: 2018 Greenbone AG Some...

Introducing Red Baron - Automate the Creation of Resilient, Disposable, Secure, and Agile Infrastructure for Red Teams

The need to automate the creation of disposable red-team infrastructure is key to providing effective adversary simulations. As Coalfire Labs continued to grow, our team needed a system to quickly configure and spin up C2 and/or phishing infrastructure, run multiple campaigns at the same time, an...

Covert Data Channel in TLS Dodges Network Perimeter Protection

Researchers have released a proof-of-concept framework for a new covert channel for data exchange using the Transport Layer Security TLS protocol. The method exploits the public key certificate standard X.509 and could allow for post-intrusion C2 communication and data exfiltration to go unnotice...

DarkComet (C2 Server) - File Upload

DarkComet C2 Server - File Upload !/usr/bin/env python3 EDB Note: Source https://gist.github.com/PseudoLaboratories/260b6f24844785aacc1e2fb61dd05c01/259944bd94a0d289ef80b9138c1e3f97a97aa9cd from time import sleep from socket import socket, AFINET, SOCKSTREAM, error from re import search from...

Recam Redux - DeConfusing ConfuserEx

This post is authored by Holger Unterbrink and Christopher MarczewskiOverviewThis report shows how to deobfuscate a custom .NET ConfuserEx protected malware. We identified this recent malware campaign in our Advanced Malware Protection AMP telemetry. Initial infection is via a malicious Word...

WebSocket C2 Communication Channel: WSC2

WSC2 is a PoC of using the WebSockets and a browser process to serve as a C2 communication channel between an agent, running on the target system, and a controller acting as the actuel C2 server. WSC2 is composed of: a controller, written in Python, which acts as the C2 server an agent running on...

WebDavC2 - A WebDAV C2 Tool

WebDavC2 is a PoC of using the WebDAV protocol with PROPFIND only requests to serve as a C2 communication channel between an agent, running on the target system, and a controller acting as the actuel C2 server. Architecture WebDavC2 is composed of: a controller, written in Python, which acts as t...

WSC2 - A WebSocket C2 Tool

WSC2 is a PoC of using the WebSockets and a browser process to serve as a C2 communication channel between an agent, running on the target system, and a controller acting as the actuel C2 server. Background information Check this blog post to get some context and insight on the developpment of th...

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...

Threat Round Up for Oct 20 - Oct 27

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between October 20 and October 27. As with previous round-ups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavior...

FormBook Malware Targets U.S. Defense Contractors, Aerospace and Manufacturing Sectors

Attackers spreading new malware called FormBook are singling out aerospace firms, defense contractors and some manufacturing organizations in the United States and South Korea. According to researchers at FireEye, FormBook was spotted in several high-volume distribution campaigns targeting the U....

Significant FormBook Distribution Campaigns Impacting the U.S. and South Korea

We observed several high-volume FormBook malware distribution campaigns primarily taking aim at Aerospace, Defense Contractor, and Manufacturing sectors within the U.S. and South Korea during the past few months. The attackers involved in these email campaigns leveraged a variety of distribution...

Significant FormBook Distribution Campaigns Impacting the U.S. and South Korea

We observed several high-volume FormBook malware distribution campaigns primarily taking aim at Aerospace, Defense Contractor, and Manufacturing sectors within the U.S. and South Korea during the past few months. The attackers involved in these email campaigns leveraged a variety of distribution...

CCleaner Command and Control Causes Concern

This post was authored by Edmund Brumaghin, Earl Carter, Warren Mercer, Matthew Molyett, Matthew Olney, Paul Rascagneres and Craig Williams.Note: This blog post discusses active research by Talos into a new threat. This information should be considered preliminary and will be updated as research...

c2.pr-cy.ru Open Redirect vulnerability

Vulnerable URL: https://c2.pr-cy.ru/a/click/3cc728f5aa12f4ccb085812e85fc85fd/?to=http://openbugbounty.org/ Details: Description| Value ---|--- Patched:| No Latest check for patch:| 18.12.2017 Vulnerability type:| Open Redirect Vulnerability status:| Publicly disclosed Alexa Rank| Unknown / Not...