The Dutch Financial Crime Investigation Service (FIOD) has arrested two men and seized 800 servers during raids on data centers in Dronten and Schiphol-Rijk that hosted infrastructure for cyberattacks, disinformation, and influence operations tied to sanctioned Russian and Belarusian entities. The 57-year-old company director and a 39-year-old connectivity provider face charges of indirectly providing economic resources to EU-sanctioned parties. The web hosting company Stark Industries was sanctioned by the EU last May; investigators say its infrastructure was simply transferred to a newly created Dutch company called WorkTitans B.V., trading under THE.Hosting. Mirhosting, which provided physical colocation and connectivity, denies knowingly supporting illegal operations.
Lumen Black Lotus Labs and PwC Threat Intelligence have detailed a Chinese cyber-espionage campaign tied to the Calypso group (also tracked as Red Lamassu) that has been hitting telecommunications providers across Asia Pacific and parts of the Middle East since mid-2022. The operators run a Linux post-exploitation framework called Showboat (or kworker) that doubles as a SOCKS5 proxy and port-forwarder, plus a Windows RAT called JMFBackdoor delivered via DLL-sideloading of fltMC.exe + FLTLIB.dll. Showboat retrieves a 'hide' command from public dead-drops like Pastebin to mask its process. The tooling appears to be shared across multiple China-aligned clusters targeting distinct victim sets.
A joint operation between French, Dutch and 14 other authorities, coordinated by Europol and Eurojust, has taken down First VPN, a privacy-focused VPN service that was advertised on cybercrime forums as a no-logs option that ignored law enforcement requests. Authorities seized 33 servers across 27 countries, took down the 1vpns.com, 1vpns.net, 1vpns.org domains and the onion mirrors, and questioned a Ukrainian suspect. Investigators infiltrated the infrastructure before takedown and pulled the user database, sharing 506 user identifications and 83 intelligence packages internationally. Europol says the service name turned up in nearly every major cybercrime investigation it has supported in recent years.
Krebs on Security reports that Jacob Butler, the 18-year-old Ottawa resident allegedly known online as 'Dort,' has been arrested and charged in both the US and Canada with running the Kimwolf IoT botnet. KrebsOnSecurity unmasked Butler as the operator on February 28 by tying together his email addresses, forum registrations, and public Telegram and Discord posts. Dort later threatened and swatted researchers including Synthient's Ben Brundage. Ontario Provincial Police executed a search warrant in Ottawa on March 19 and seized devices. Kimwolf competed with Aisuru, JackSkid, and Mossad for the same vulnerable-IoT population. Butler faces up to 10 years if extradited and convicted in the US.
ADAMnetworks researchers have disclosed Underminr, a domain-fronting attack that abuses how major content delivery networks resolve HTTP requests, letting an attacker route malicious traffic so it appears to come from trusted brand domains. Protective DNS filters see the DNS lookup for the legitimate site and wave it through. ADAMnetworks estimates 42% of websites globally are vulnerable, 51% in the US, around one-third in Eastern Europe, and under 9% in China's heavily-regulated internet. The researchers say attackers are already using the technique. Boutique security-focused CDNs that perform domain verification are not vulnerable; the larger general-purpose providers carry most of the exposure.
Hunt.io has mapped 1,350+ command-and-control servers spread across 98 providers in 14 Middle Eastern countries over three months. Saudi Telecom Company (STC) hosts 981 of them - 72.4% of all observed regional C2 - the largest single-provider concentration the researchers have seen globally. Most of STC's hosting appears to be compromised customer systems rather than deliberate bulletproof hosting, but the effect is the same. Other heavy hosts include SERVERS TECH FZCO (UAE), OMC (Israel), Türk Telekom, and Iraqi provider Regxa, which Hunt.io flags as the highest bulletproof-hosting profile observed. Named campaigns hosted on this infrastructure include Eagle Werewolf espionage, DYNOWIPER attacks on Poland's energy sector, and RondoDox.
ESET has documented Chinese-aligned threat actor Webworm adding two new custom backdoors to its toolset: EchoCreep, which uses a Discord channel for command-and-control, and GraphWorm, which routes C2 through the Microsoft Graph API and uploads exfiltrated files to OneDrive. Webworm is staging tools out of a GitHub repository disguised as a WordPress fork and has been observed targeting government organizations in Belgium, Italy, Serbia, Poland, Spain, and a university in South Africa. The earliest EchoCreep Discord commands date to March 21, 2024; about 433 messages have been sent through the channel. Initial access is still unclear, but dirsearch and nuclei are involved.
Ukrainian cyberpolice working with US law enforcement have identified an 18-year-old man from Odesa as the suspected operator of an infostealer operation that ran from 2024 through 2025 against customers of a California online retailer. The malware harvested 28,000 customer accounts; the operators used about 5,800 of them to make $721,000 in unauthorized purchases, leaving the retailer with around $250,000 in direct losses including chargebacks. The suspect ran the back-end infrastructure for processing and selling stolen session tokens. Police searched two residences and seized computers, phones, and bank cards. No arrest has been announced yet.
B1ack's Stash, a dark-web carding marketplace operating since at least 2023, has released roughly 4.6 million stolen credit-card records as a free download. The market frames the dump as punishment for sellers caught reselling its data on rival platforms; SOCRadar says the marketplace also suspended about 8 million additional CVV2 records. The records include full PAN, CVV2, expiration date, billing address, full name, email, phone number, and IP address, which makes them directly usable for card-not-present fraud and account-opening fraud. This is the third free dump B1ack's Stash has used as a customer-acquisition tactic since its 2024 emergence.
Between 01:56 and 02:56 UTC on May 19, a Shai-Hulud-flavored attack published 639 malicious versions across 323 npm packages, mostly in the @antv chart and graph namespace, after compromising the maintainer account 'atool.' Affected libraries include @antv/g2, @antv/g6, echarts-for-react, timeago.js, and jest-canvas-mock (still 10M monthly downloads despite three years dormant). A linked attack hijacked 15 tags of the 'actions-cool' GitHub Action and replaced them with a credential stealer that reads runner memory and exfils to t.m-kosche[.]com - the same domain as the @antv campaign. Socket and Aikido say there are now 2,900+ GitHub repos generated by this wave.
TrustStrike Labs