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...

PBot: a Python-based adware

Recently, we came across a Python-based sample dropped by an exploit kit. Although it arrives under the disguise of a MinerBlocker, it has nothing in common with miners. In fact, it seems to be PBot/PythonBot: a Python-based adware. Apart from a couple of posts on forums in Russian language and...

Magnitude exploit kit switches to GandCrab ransomware

The GandCrab ransomware is reaching far and wide via malspam, social engineering schemes, and exploit kit campaigns. On April 16, we discovered that Magnitude EK, which had been loyal to its own Magniber ransomware, was now being leveraged to push out GandCrab, too. While Magnitude EK remains...

Coins LTD Exploit Kits Traffic Distribution System

Coins LTD Traffic Distribution System TDS operates by silently redirecting the victim to a malicious web page, leading to infection by an exploit kit. Successful infection will allow the attacker to download additional malware to the target...

RIG Exploit Kit URL

RIG exploit kit is a web exploit kit that operates by delivering malicious payload to the victim's computer. Successful infection will allow the attacker to download additional malware to the target...

Suspicious Exploit Kit Website Redirection

An exploit kit is a type of toolkit cybercriminals use to attack vulnerabilities in systems so they can distribute malware or perform other malicious activities. Remote attackers can infect users by redirecting them to a malicious web page. Successful infection will allow the attacker to download...

Spelevo Exploit Kit Landing Page

Spelevo exploit kit is a web exploit kit that operates by delivering malicious payload to the victim's computer. Successful infection will allow the attacker to download additional malware to the target...

RIG malvertising campaign uses cryptocurrency theme as decoy

For a couple of weeks, we have been observing a malvertising campaign that uses decoy websites to redirect users to the RIG exploit kit. Those sites, whose theme is about cryptocurrencies, were all registered recently and are swapped after a few days of use. The initial redirection starts off fro...

GrandSoft Exploit Kit Gate

GrandSoft exploit kit is a web exploit kit that operates by delivering malicious payload to the victim's computer. Successful infection will allow the attacker to download additional malware to the target...

GrandSoft Exploit Kit Gate

GrandSoft exploit kit is a web exploit kit that operates by delivering malicious payload to the victim's computer. Successful infection will allow the attacker to download additional malware to the target...

GrandSoft Exploit Kit Landing Page

GrandSoft exploit kit is a web exploit kit that operates by delivering malicious payload to the victim's computer. Successful infection will allow the attacker to download additional malware to the target...

RIG Exploit Kit Rotator

RIG exploit kit rotator is a web exploit kit server that operates by delivering malicious URL's to the victim's computer. Successful infection will allow the attacker to download additional malware to the target...

GandCrab ransomware distributed by RIG and GrandSoft exploit kits (updated)

This post was authored by Vasilios Hioueras and Jérôme Segura Update 2018-02-02: GandCrab is delivered via Necurs malicious spam 1. Update 2018-02-01: GandCrab is now also spread via the EITest campaign 2 3. - - Late last week saw the appearance of a new ransomware called GandCrab. Surprisingly, ...

A coin miner with a “Heaven’s Gate”

You might call the last two years the years of ransomware. Ransomware was, without a doubt, the most popular type of malware. But at the end of last year, we started observing that ransomware was losing its popularity to coin miners. It is very much possible that this trend will grow as 2018...

A week in security (January 8 – January 14)

It's very early in the year, yet everyone has already had a complete meltdown pun intended over a number of serious vulnerabilities found in legacy and modern microprocessors. Last week, rightly so, vendors released patches for hardware and OSes to help mitigate these threats. However, problems i...

RIG exploit kit campaign gets deep into crypto craze

There isn't a day that goes by without a headline about yet another massive spike in Bitcoin valuation, or a story about someone mortgaging their house to purchase the hardware required to become a serious cryptocurrency miner. If many folks are thinking about joining the 'crypto craze' movement,...

Cobalt Strike Payload Remote Code Execution

Cobalt Strike is an exploit kit that operates by delivering malicious payload to the victim's computer...

Terdot Trojan likes social media

We usually advise people that have fallen victim to banker Trojans to change all their passwords, especially the ones that are related to their financial sites and apps. Besides the dangers of re-used passwords, there are other reasons why this is important. This advice is especially applicable t...

Banking Trojan Gains Ability to Steal Facebook, Twitter and Gmail Accounts

Security researchers have discovered a new, sophisticated form of malware based on the notorious Zeus banking Trojan that steals more than just bank account details. Dubbed Terdot, the banking Trojan has been around since mid-2016 and was initially designed to operate as a proxy to conduct...

Disdain exploit kit and a side of social engineering deliver Neutrino Bot

Today we picked up new activity from an exploit kit that was first discovered back in August of this year. The Disdain exploit kit, simply identified by a string of the same name found in its source code, is being distributed again after a short interruption via malvertising chains. Disdain EK...