Undefined Behavior

Overview Versions of zencashjs prior to 1.2.0 may cause loss of funds when used with cryptocurrency wallets. The package relies on a string comparison of the first two characters of a Horizen address to determine the destination address type of a transaction P2PKH or P2SH. Due to the base58 addre...

RATs and stealers rush through “Heaven’s Gate” with new loader

By Holger Unterbrink and Edmund Brumaghin. Executive summary Malware is constantly finding new ways to avoid detection. This doesn't mean that some will never be detected, but it does allow adversaries to increase the period of time between initial release and detection. Flying under the radar fo...

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...

Crooks steal $28M in crypto using Google Adwords & spoofed domains

By Uzair Amir Authorities arrested six suspects including five males and one female in simultaneous raids carried out in a joint operation. The raids and subsequent arrests were carried out to trace $28 million worth of stolen Bitcoin. The raids were conducted as part of a 14-month long,...

Threat Source newsletter (June 27, 2019)

Newsletter compiled by Jonathan Munshaw. Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week. You never want to fall behind on Beers with Talos. So make sure to listen to the latest episode on your commute home today. This...

Mozilla Fixes Second Actively-Exploited Firefox Flaw

UPDATE Mozilla has fixed a high-severity vulnerability in its Firefox browser being actively exploited in the wild. The vulnerability CVE-2019-11708 is separate from a critical flaw under active attack that was patched earlier this week CVE-2019-11707. However, both vulnerabilities were discovere...

Firefox 67.0.4 Released — Mozilla Patches Second 0-Day Flaw This Week

Okay, folks, it's time to update your Firefox web browser once again—yes, for the second time this week. After patching a critical actively-exploited vulnerability in Firefox 67.0.3 earlier this week, Mozilla is now warning millions of its users about a second zero-day vulnerability that attacker...

LoudMiner Cryptominer Uses Linux Image and Virtual Machines

An unusual cryptocurrency miner, dubbed LoudMiner, is spreading via pirated copies of Virtual Studio Technology. It uses virtualization software to mine Monero on a Tiny Core Linux virtual machine – a unique approach, according to researchers. Virtual Studio Technology VST is an audio plug-in...

New Mac cryptominer Malwarebytes detects as Bird Miner runs by emulating Linux

A new Mac cryptocurrency miner Malwarebytes detects as Bird Miner has been found in a cracked installer for the high-end music production software Ableton Live. The software is used as an instrument for live performances by DJs, as well as a tool for composing, recording, mixing, and mastering. A...

Mozilla Patches Firefox Critical Flaw Under Active Attack

UPDATE Mozilla has released updates for the Firefox browser addressing a critical vulnerability that is being actively exploited in targeted attacks against Coinbase employees – and potentially other cryptocurrency organizations. The critical flaw CVE-2019-11707 is a type confusion vulnerability ...

A week in security (June 10 – 16)

Last week on Malwarebytes Labs, we revealed to readers the mindset of security pros as to why they lack confidence in their ability to prevent their organizations getting breached. We also reported on Maine Governor Janet Mills implementing the state’s own privacy protections, how Apple can bette...

This Week in Security News: Spam Campaigns and Cryptocurrency Miners

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 advanced targeted attack tools being used to distribute cryptocurrency miners as well as a spam campaign targeting European user...

Cryptocurrency Company Hacks Itself Before Hackers Can Hack It

Microsoft deletes its facial recognition database, hackers hit health care, and more of the week's top security news...

Cryptocurrency Firm Itself Hacked Its Customers to Protect Their Funds From Hackers

Are you using Komodo's Agama Wallet to store your KMD and BTC cryptocurrencies? Were your funds also unauthorisedly transferred overnight to a new address? If yes, don't worry, it's probably safe, and if you are lucky, you will get your funds back. Here's what exactly happened… Komodo, a...

Malicious Package

blubird is a malicious package. It contains a malware that attempts to start a cryptocurrency miner using coin-hive...

Malicious Package

commqnder is a malicious package. It contains a malware that attempts to start a cryptocurrency miner using coin-hive...

Malicious Package

epress is a malicious package. It contains a malware that attempts to start a cryptocurrency miner using coin-hive...

Malicious Package

electron-native-notify is a malicious package. It contains a malicious payload that steals cryptocurrency wallet seeds and uploads them to a remote server, allowing attackers to access users' wallets...

Malicious Package

Overview All versions of electron-native-notify contain malicious code. The package was part of a targeted attack to steal cryptocurrency wallet seeds and upload them to a remote server, effectively giving attackers access to users wallets. Recommendation Remove the package from your environment...

Malicious Package

Overview Version 4.13.2 of epress contains malicious code . The package is malware designed to take advantage of users making a mistake when typing the name of a module to install. Upon require the package attempts to start a cryptocurrency miner using coin-hive. Recommendation Remove the package...