CVE-2017-16128: Embedded Malicious Code

The module npm-script-demo opened a connection to a command and control server. It has been removed from the npm registry...

Command and Control – Browser

Red Teams are always focused in the discovery of innovative ways to establish connections back to their command and control infrastructure. The main reasons that leads red teams to use standard protocols or native system functionality for command and control operations is to bypass some sort of...

IoT Botnets Found Using Default Credentials for C&C Server Databases

Not following cybersecurity best practices could not only cost online users but also cost cybercriminals. Yes, sometimes hackers don't take best security measures to keep their infrastructure safe. A variant of IoT botnet, called Owari , that relies on default or weak credentials to hack insecure...

Brazilian Banking Trojan Communicates Via Microsoft SQL Server

Researchers have discovered a banking trojan making waves in Brazil with an array of tricks up its sleeve, including using an unusual command and control C&C server and a full-screen social-engineering overlay form. Researchers at IBM X-Force research on Tuesday revealed that attackers are using...

Command and Control via Legitimate Behavior over HTTP: TrevorC2

TrevorC2 is a client/server model for masking command and control through a normally browsable website. Detection becomes much harder as time intervals are different and does not use POST requests for data exfil. There are two components to TrevorC2 – the client and the server. The client can be...

Muhstik Botnet Exploits Highly Critical Drupal Bug

Researchers are warning a recently discovered and highly critical vulnerability found in Drupal’s CMS platform is now being actively exploited by hackers who are using it to install cryptocurrency miners and to launch DDoS attacks via compromised systems. At the time of the disclosure, last month...

Use of ‘StegWare’ Increases in Stealth Malware Attacks

SAN FRANCISCO – Researchers are warning of an uptick in the malicious use of steganography as a vehicle for delivering malware. Steganography, they say, is increasingly becoming a go-to tool for cybercriminals not just for infection, but also command-and-control, data exfiltration and as an...

Roaming Mantis uses DNS hijacking to infect Android smartphones

In March 2018, Japanese media reported the hijacking of DNS settings on routers located in Japan, redirecting users to malicious IP addresses. The redirection led to the installation of Trojanized applications named facebook.apk and chrome.apk that contained Android Trojan-Banker. According to ou...

Word Attachment Delivers FormBook Malware, No Macros Required

A new wave of document attacks targeting inboxes do not require enabling macros in order for adversaries to trigger an infection chain that ultimately delivers FormBook malware. Researchers at Menlo Security are reporting a wave of attacks that began last month that are targeting financial and...

Fake Software Update Abuses NetSupport Remote Access Tool

Over the last few months, FireEye has tracked an in-the-wild campaign that leverages compromised sites to spread fake updates. In some cases, the payload was the NetSupport Manager remote access tool RAT. NetSupport Manager is a commercially available RAT that can be used legitimately by system...

How smart is my smart TV?

Some weeks ago, my friend asked me the headlining question while we were having a random argument about electronics. I found it to be an interesting one, particularly because it underlines the current mindset towards security of electronic devices communicable over computer networks. We are...

Alleged Mastermind Behind Carbanak Crime Gang Arrested

The suspected mastermind behind the Carbanak criminal gang, which is notorious for stealing as much as $1 billion from more than 100 financial institutions in a string of attacks, has been apprehended, according to the Spanish National Police. According to the European Union Agency for Law...

APT Hackers Infect Routers to Covertly Implant Slingshot Spying Malware

Security researchers at Kaspersky have identified a sophisticated APT hacking group that has been operating since at least 2012 without being noticed due to their complex and clever hacking techniques. The hacking group used a piece of advanced malware—dubbed Slingshot—to infect hundreds of...

New Cryptocurrency Mining Malware Infected Over 500,000 PCs in Just Few Hours

Two days ago, Microsoft encountered a rapidly spreading cryptocurrency-mining malware that infected almost 500,000 computers within just 12 hours and successfully blocked it to a large extent. Dubbed Dofoil, aka Smoke Loader, the malware was found dropping a cryptocurrency miner program as payloa...

The devil’s in the Rich header

In our previous blog, we detailed our findings on the attack against the Pyeongchang 2018 Winter Olympics. For this investigation, our analysts were provided with administrative access to one of the affected servers, located in a hotel based in Pyeongchang county, South Korea. In addition, we...

CannibalRAT targets Brazil

This post was authored by Warren Mercer and Vitor Ventura Introduction Talos has identified two different versions of a RAT, otherwise known as a remote access trojan, that has been written entirely in Python and is wrapped into a standalone executable. The RAT is impacting users of a Brazilian...

Threat Analysis: ROKRAT Malware

ROKRAT also referred to as DOGcall is a family of malware that has been used by attackers originating from North Korea. The family continues to evolve and adopt techniques from other families also used by the same attack group. The ROKRAT core payload is typically deployed by a loader, which has...

Cyber Espionage Group Targets Asian Countries With Bitcoin Mining Malware

Security researchers have discovered a custom-built piece of malware that's wreaking havoc in Asia for past several months and is capable of performing nasty tasks, like password stealing, bitcoin mining, and providing hackers complete remote access to compromised systems. Dubbed Operation PZChao...

A Death Match of Domain Generation Algorithms

By Hongliang Liu and Yuriy Yuzifovich Originally posted on December 29, 2017 Today's post is all about DGA's Domain Generation Algorithms: what they are, why they came into existence, what are some use cases where they are used, and, most importantly - how to detect and block them. As we will...

A state of constant uncertainty or uncertain constancy? Fast flux explained

Last August, WireX made headlines. For one thing, it was dubbed the first-known DDoS botnet that used the Android platform. For another, it used a technique that—for those who have been around in the industry for quite a while now—rung familiar in the ears: fast flux. In the context of...