TAU Threat Intelligence Notification: DarkHydrus/RogueRobin

Recently, Palo Alto Unit 42 released an updated report regarding new DarkHydrus delivery documents, which includes the installation of an updated variant of the RogueRobin trojan. This document includes details on both DarkHydrus and RogueRobin, along with detection rules and search queries that...

TAU Threat Intelligence Notification – Crypt0r Ransomware

Summary Crypt0r ransomware is a new strain of ransomware that operates similar to WannaCry and NotPetya. When executed, it first checks for a hardcoded mutex value, and if it isn’t found, creates it as “crypt0r-mutex”. It then retrieves the temporary path of the currently logged in user, and...

Sofacy APT Takes Aim with Novel 'Cannon' Trojan

The Sofacy APT group is back, with a new second-stage custom malware payload that researchers have dubbed “Cannon.” A campaign against several government entities around the globe, including in North America, Europe and a former Soviet state, came in waves during late October and early November,...

OilRig APT Continues Its Ongoing Malware Evolution

OilRig, an APT group believed to have ties to Iran, has been spotted in yet another campaign in the Middle East – this time targeting victims within an undisclosed government using an evolved variant of the BondUpdater trojan. The group, which is also called Cobalt Gypsy, Crambus, Helix Kitten or...

Ibombshell - Dynamic Remote Shell

ibombshell is a tool written in Powershell that allows you to have a prompt at any time with post-exploitation functionalities and in some cases exploitation. It is a shell that is downloaded directly to memory providing access to a large number of pentesting features. These functionalities can b...

New Malware Family Uses Custom UDP Protocol for C&C Communications

Security researchers have uncovered a new highly-targeted cyber espionage campaign, which is believed to be associated with a hacking group behind KHRAT backdoor Trojan and has been targeting organizations in South East Asia. According to researchers from Palo Alto, the hacking group, which they...

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...

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...

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...

HawkEye Credential Theft Malware Distributed in Recent Phishing Campaign

A wide variety of threat actors began distributing HawkEye malware through high-volume email campaigns after it became available for purchase via a public-facing website. The actors behind the phishing campaigns typically used email themes based on current events and media reports that would piqu...

Threat actors leverage EternalBlue exploit to deliver non-WannaCry payloads

The “EternalBlue” exploit MS017-010 was initially used by WannaCry ransomware and Adylkuzz cryptocurrency miner. Now more threat actors are leveraging the vulnerability in Microsoft Server Message Block SMB protocol – this time to distribute Backdoor.Nitol and Trojan Gh0st RAT. FireEye Dynamic...

New Downloader for Locky

Through DTI Intelligence analysis, We have been observing Locky malware rise to fame recently. Locky is ransomware that is aggressively distributed via downloaders attached in spam emails, and it may have surpassed the Dridex banking trojan in popularity. In previous campaigns, the ransomware was...

New Downloader for Locky

Through DTI Intelligence analysis, We have been observing Locky malware rise to fame recently. Locky is ransomware that is aggressively distributed via downloaders attached in spam emails, and it may have surpassed the Dridex banking trojan in popularity. In previous campaigns, the ransomware was...

Android Malware Installs Pirated Assassin's Creed App

A pirated version of the Assassin’s Creed application for Android is bundled with malware according to the security-as-as-service from Zscaler. Assassin’s Creed is a popular, open-world series of adventure games available in various iterations on the XBOX, PlayStation, PC and other gaming...

CryptoPHP Backdoor Hijacks Servers with Malicious Plugins & Themes

Security researchers have discovered thousands of backdoored plugins and themes for the popular content management systems CMS that could be used by attackers to compromise web servers on a large scale. The Netherlands-based security firm Fox-IT has published a whitepaper revealing a new Backdoor...