MAL-2026-2527 Malicious code in sjs-biginteger (npm)

sjs-biginteger typosquats big.js on npm. Published April 7, 2026 by throwaway account vanes.s.p.orit.a, the package ships legitimate big.js source and hides its payload in a dependency: sjs-lint-build1. On install, the dependency’s postinstall hook fetches the attacker’s SSH public key from a C2...

Armenian Entities Hit by New Version of OxtaRAT Spying Tool

Entities in Armenia have come under a cyber attack using an updated version of a backdoor called OxtaRAT that allows remote access and desktop surveillance. "The tool capabilities include searching for and exfiltrating files from the infected machine, recording the video from the web camera and...

Looking Over the Nation-State Actors’ Shoulders

Looking over the nation-state actors’ shoulders: Even they have a difficult day sometimes By Trellix and Marc Elias · Febraury 17, 2022 Have you ever been curious about how nation-state actors operate and what their day-to-day work looks like? This blog reveals some of these details observed base...

Operation ‘Harvest’: A Deep Dive into a Long-term Campaign

ARCHIVED STORY Operation ‘Harvest’: A Deep Dive into a Long-term Campaign By Christiaan Beek · September 14, 2021 A special thanks to our Professional Services’ IR team,ShadowServer, for historical context on C2 domains, and Thomas Roccia/Leandro Velasco for malware analysis support. Executive...

Alina Point-of-Sale Malware Spotted in Ongoing Campaign

A venerable point-of-sale POS malware called Alina that’s been around since 2012 is back in circulation, with a new trick for stealing credit- and debit-card data: Domain Name System DNS tunneling. DNS is the mechanism by which numeric IP addresses are linked to website names; DNS translates...

DNS over HTTPS

DNS over HTTPS DoH is a protocol for performing remote Domain Name System DNS resolution via the HTTPS protocol. A goal of the method is to increase user privacy and security by preventing eavesdropping and manipulation of DNS data by man-in-the-middle attacks1 by using the HTTPS protocol to...

Virus Bulletin 2019: Magecart Infestations Saturate the Web

LONDON — Magecart, the digital card-skimming collective, is now so ubiquitous that its infrastructure is flooding the internet. In a paper presented at Virus Bulletin 2019 this week in London, Jordan Herman and Yonathan Klijnsma of RiskIQ said that there are now 573 known C2 domains for the group...

Threat Roundup for April 26 to May 3

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between April 26 and May 03. 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...

TAU Threat Intelligence Notification – WindTail (OSX)

Summary Dark Matter researcher Taha Karim recently presented his research on the APT group WindShift at Hack in the Box Singapore. This group primarily focuses on highly targeted campaigns directed toward Middle Eastern government and commercial entities. One of the custom macOS backdoors employe...

Significant FormBook Distribution Campaigns Impacting the U.S. and South Korea

We observed several high-volume FormBook malware distribution campaigns primarily taking aim at Aerospace, Defense Contractor, and Manufacturing sectors within the U.S. and South Korea during the past few months. The attackers involved in these email campaigns leveraged a variety of distribution...

Significant FormBook Distribution Campaigns Impacting the U.S. and South Korea

We observed several high-volume FormBook malware distribution campaigns primarily taking aim at Aerospace, Defense Contractor, and Manufacturing sectors within the U.S. and South Korea during the past few months. The attackers involved in these email campaigns leveraged a variety of distribution...

Locky Variant Zepto Debuts with Big Spam Push

Ransomware called Zepto is raising concerns with security experts because of its close ties to the more mature and prolific Locky ransomware. Zepto was spotted about a month ago but a recent wave of spam containing Zepto-laced attachments detected on June 27 is heightening fears of widespread...