Fenrir - Simple Bash IOC Scanner

Fenrir is a simple IOC scanner bash script. It allows scanning Linux/Unix/OSX systems for the following Indicators of Compromise IOCs: Hashes MD5, SHA1 and SHA256 using md5sum, sha1sum, sha -a 256 File Names string - checked for substring of the full path, e.g. "temp/p.exe" in "/var/temp/p.exe"...

FunkyBot Malware Intercepts Android Texts, 2FA Codes

An Android malware dubbed “FunkyBot” has started making the scene in Japan, operated by the same attackers responsible for the FakeSpy malware. It intercepts SMS messages sent to and from infected devices. According to FortiGuard Labs, the malware named after logging strings found in the...

Adwind Spyware-as-a-Service Attacks Utility Grid Operators

A phishing campaign that spoofs a PDF attachment to deliver Adwind spyware has been taking aim at national grid utilities infrastructure. Adwind, a.k.a. JRAT or SockRat, is being used in a malware-as-a-service model in this campaign, researchers said. It offers a full cadre of info-gathering...

goDoH - A DNS-over-HTTPS C2

godoh is a proof of concept Command and Control framework, written in Golang, that uses DNS-over-HTTPS as a transport medium. Currently supported providers include Google, Cloudflare but also contains the ability to use traditional DNS. Installation All you would need are the godoh binaries...

Forget BlueKeep: Beware the GoldBrute

While everyone’s talking about the BlueKeep Mega-Worm, this is not the main monster to fear, according to recent web attack activity. Rather, a researcher is warning that the GoldBrute botnet poses the greatest threat to Windows systems right now. In the past few days, GoldBrute named after the...

CARBANAK Week Part Four: The CARBANAK Desktop Video Player

Part One, Part Two and Part Three of CARBANAK Week are behind us. In this final blog post, we dive into one of the more interesting tools that is part of the CARBANAK toolset. The CARBANAK authors wrote their own video player and we happened to come across an interesting video capture from CARBAN...

Gustuff banking botnet targets Australia

Vitor Ventura authored this post. Executive summary Cisco Talos has uncovered a new Android-based campaign targeting Australian financial institutions. As the investigation progressed, Talos came to understand that this campaign was associated with the "ChristinaMorrow" text message spam scam...

Threat Roundup for March 29 to April 5

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between March 29 and April 05. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral...

CB Threat Intelligence Notification: Vidar InfoStealer Trojan Aims to Steal Data Before Erasing Itself

Vidar is an info stealer trojan, which was sold under the name Vidar Pro stealer and can be distributed through different campaigns. This malware will perform multiple types of malicious behavior including stealing web browser cookies and history, digital wallets, two-factor authentication data,...

Threat Roundup for March 15 to March 22

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between March 15 and March 22. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral...

TAU Threat Intelligence Notification: Spear Phishing Targeting Italy

Summary This campaign is targeting users in Italy with spear phishing email containing malicious attachments. Figure 1: Emails with the malicious XLS attachment The image above show one of the sample has attached in multiple email that has been sent to email address with Italy ccTLD. The attached...

TAU Threat Intelligence Notification: Java Embedded MSI Files

Summary Application whitelisting provides environments with access controls to stop unauthorized software from executing. This is accomplished by utilizing file and folder attributes including but not limited to file path, filename, digital signature, publisher, cryptographic hash and product nam...

New malware found using Google Drive as its command-and-control server

Since most security tools also keep an eye on the network traffic to detect malicious IP addresses, attackers are increasingly adopting infrastructure of legitimate services in their attacks to hide their malicious activities. Cybersecurity researchers have now spotted a new malware attack campai...

Vidar and GandCrab: stealer and ransomware combo observed in the wild

We have been tracking a prolific malvertising campaign for several weeks and captured a variety of payloads, including several stealers. One that we initially identified as Arkei turned out to be Vidar, a new piece of malware recently analyzed in detail by Fumik0 in his post: Let’s dig into Vidar...

Threat Roundup for November 2 to November 9

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Nov. 02 and Nov. 09. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics...

sLoad Banking Trojan Downloader Displays Sophisticated Recon and Targeting

A new PowerShell downloader dubbed sLoad is making the rounds, sporting impressive reconnaissance tactics and a penchant for geofencing, which indicate increasing sophistication when it comes to targeting efforts. First spotted in May 2018, sLoad typically delivers the Ramnit banking trojan but h...

Tracking Tick Through Recent Campaigns Targeting East Asia

This blog post is authored by Ashlee Benge and Jungsoo An, with contributions from Dazhuo Li. Summary Since 2016, an advanced threat group that Cisco Talos is tracking has carried out cyberattacks against South Korea and Japan. This group is known by several different names: Tick, Redbaldknight a...

Active Campaign Exploits Critical Apache Struts 2 Flaw in the Wild

It was only a matter of time before attacks were seen in the wild, and now it’s happened. A known threat actor has mounted a large cryptomining campaign using the recently disclosed Apache Struts 2 critical remote code-execution vulnerability. It uses a new malware designed for persistence and...

Threat Roundup for August 24-31

Today, as we do every week, Talos is giving you a glimpse into the most prevalent threats we’ve observed this week — covering the dates between Aug. 24 and 31. As with previous roundups, this post isn’t meant to be an in-depth analysis. Instead, we will summarize the threats we’ve observed by...

New Actor DarkHydrus Targets Middle East with Open-Source Phishing

Government entities and educational institutions in the Middle East are under attack in an ongoing credential-harvesting campaign, mounted by a newly-named threat group known as DarkHydrus. In a twist on the norm, the group is leveraging the open-source Phishery tool to carry out its dark work. T...