Threat Analysis Unit (TAU) Threat Intelligence Notification: AsyncRAT

AsyncRAT is a Remote Access Tool RAT designed to remotely monitor and control other computers through a secure encrypted connection. It is an open source remote administration tool, however, it could also be used maliciously because it provides functionality such as keylogger, remote desktop...

This Week in Security News: Amazon Echo Hacked at Pwn2Own Tokyo 2019 and Ransomware Attacks Hit Spanish Companies

Welcome to our weekly roundup, where we share what you need to know about the cybersecurity news and events that happened over the past few days. This week, learn about a ransomware that is attacking Spanish companies and how nearly 50 adware apps were found on Google Play. Also, read about how a...

Capesand Exploit Kit Landing Page

Capesand 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...

Purple Fox Exploit Kit Landing Page

Purple Fox 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...

Cynet’s free vulnerability assessment offering helps organizations significantly increase their security

Long before a cyberattack is underway, organizations need to be focused on improving their security. Part of this is to always be monitoring their environment, on the lookout for weaknesses and ready to take action if they are found. This is the best way to ensure the organization remains immune ...

Radio Exploit Kit Landing Page

Radio 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...

The Hidden Bee infection chain, part 1: the stegano pack

About a year ago, we described the Hidden Bee miner delivered by the Underminer Exploit Kit. Hidden Bee has a complex and multi-layered internal structure that is unusual among cybercrime toolkits, making it an interesting phenomenon on the threat landscape. That's why we're dedicating a series o...

A week in security (July 29 – August 4)

Last week on Malwarebytes Labs we discussed the security and privacy changes in Android Q, how to get your Equifax money and stay safe doing it, and we looked at the strategy of getting a board of directors to invest in government cybersecurity. We also reviewed how a Capital One breach exposed...

Lord Exploit Kit Landing Page

Lord 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...

Say hello to Lord Exploit Kit

Just as we had wrapped up our summer review of exploit kits, a new player entered the scene. Lord EK, as it is calling itself, was caught by Virus Bulletin's Adrian Luca while replaying malvertising chains. In this blog post, we do a quick review of this exploit kit based on what we have collecte...

Malvertising Campaigns Skirt Ad Blockers, Serve Up Mac Malware

Two fresh malvertising campaigns are making the scene that are abusing the convoluted underpinnings of the internet economy to find malware victims. One is a large-scale exploit kit EK campaign designed to circumvent traditional safeguards, such as ad blockers, and the other uses web redirects to...

Popular Malware Families Using 'Process Doppelgänging' to Evade Detection

The fileless code injection technique called Process Doppelgänging is actively being used by not just one or two but a large number of malware families in the wild, a new report shared with The Hacker News revealed. Discovered in late 2017, Process Doppelgänging is a fileless variation of Process...

CB TAU Threat Intelligence Notification: Maze Ransomware

Maze Ransomware, also known as ChaCha Ransomware, has been discovered being distributed by the Fallout exploit kit. After the encryption, it will create a ransom note named ‘DECRYPT-FILES.html’ in each of the encrypted file’s folders. The bottom of the ransom note is a base64 string which contain...

A week in security (June 24 – 30)

Last week on Malwarebytes Labs, we peeled back the mystery on an elusive malware campaign that relied on blank JavaScript injections, detailed for readers our latest telemetry on the tricky GreenFlash Sundown exploit, and looked at one of the top campaigns directing traffic toward scareware pages...

This Week in Security News: Malvertising and Internet of Things Malware

Welcome to our weekly roundup, where we share what you need to know about the cybersecurity news and events that happened over the past few days. This week, learn about a new Internet of Things malware that’s bricked thousands of devices. Also, read about a ransomware family that’s using...

GreenFlash Sundown exploit kit expands via large malvertising campaign

Exploit kit activity has been relatively quiet for some time, with the occasional malvertising campaign reminding us that drive-by downloads are still a threat. However, during the past few days we noticed a spike in our telemetry for what appeared to be a new exploit kit. Upon closer inspection ...

Rapidly Growing Electrum Botnet Infects Over 152,000 Users; Steals $4.6 Million

An ongoing attack against Electrum Bitcoin wallets has just grown bigger and stronger with attackers now targeting the whole infrastructure of the exchange with a botnet of over 152,000 infected users, raising the amount of stolen users' funds to USD 4.6 million. Electrum has been facing cyber...

Interview with a malware hunter: Jérôme Segura

In our series "Interview with a malware hunter," our feature role today goes to Jérôme Segura, Malwarebytes’ Head of Threat Intelligence and world-renowned exploit kits researcher. The goal of this series is to introduce our readers to our malware intelligence crew by involving them in these Q&A...

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...

A week in security (December 17 – 23)

Last week on Labs we looked at Fuchsia OS as a possible alternative for Android, explained all the reasons why cybercriminals want to hack your phone, discussed a flaw in Twitter form that may have been abused by nation states, gave you a Christmas tech scams roundup, revealed why many online...