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40 Malicious Firefox Extensions Pose as Web3 Products to Steal Wallet Secrets

Socket found 40 malicious Firefox extensions impersonating OKX, Rabby Wallet, and TronLink to steal cryptocurrency wallet recovery phrases and private keys.

The Socket Threat Research team identified 40 malicious Firefox extensions masquerading as Web3 products including OKX, Rabby Wallet, and TronLink, part of a broader set of 77 add-ons sharing source code and infrastructure overlaps. The campaign, dubbed Offside Wallet Theft Factory, has been active since March 2026 and remains unattributed. Of the 40 confirmed malicious extensions, 15 capture recovery phrases and private keys exfiltrated through Cloudflare Workers, 13 modified Rabby Wallet builds exfiltrate serialized keyrings before local encryption, seven use attacker-controlled Supabase projects as remote switches, and five capture credentials and clipboard data via hard-coded C2. Some extensions began as sports score or utility shells before being repurposed into wallet stealers under the same Firefox ID.

The Hacker News · 28d agoMalware in the wild

The Crypto Wallet That Never Opened: Tampered Exodus Installer Hides a Modular RAT

Huntress found tampered Exodus crypto wallet installers delivering a modular RAT that steals credentials rather than wallet funds.

Huntress analysts analyzed tampered installers for the Exodus cryptocurrency wallet that bundle a modular remote access trojan. The implant focuses on harvesting credentials instead of draining wallet balances, suggesting broader access theft. The case highlights installer tampering as a supply-chain-style delivery vector for credential-stealing tooling.

Huntress · 16d agoMalware in the wild

Fraudsters steal $6 million from Tectonic crypto platform after inflating token price

Attackers inflated Tectonic's Tonic token price 100x in 20 minutes and borrowed $74 million against it, stealing $6 million before Cronos halted activity.

Attackers manipulated the price of Tectonic's thinly traded Tonic token, raising it more than 100-fold in 20 minutes, then used the inflated tokens as collateral to borrow assets in an attempted $74 million theft. About $6 million left the platform; Cronos halted blockchain activity and later restored roughly $69 million in frozen funds via an on-chain rollback. Tectonic plans a phased reopening and a postmortem. TRM Labs says market manipulation now accounts for one in eight crypto hacks, with 32 incidents in 2026, and compares the case to the 2022 Mango Markets manipulation that led to a criminal conviction.

The Record · 16d agoPhishing & fraud

This Key Will Self-Destruct: An Open Standard for Revocable API Keys

SecurityWeek opinion piece proposes ORKS, an open standard adding issuer prefixes, discovery files, and unauthenticated revocation endpoints to make leaked API keys quickly revocable.

The article argues that plain API keys leak frequently yet lack any standardized revocation mechanism, unlike OAuth tokens which gained RFC 7009 revocation in 2013, and that GitHub's Secret Scanning Partner Program solves this only in a proprietary, invite-only way. The author proposes ORKS (Open Revocable Key Standard), with a draft spec on GitHub, built on four parts: keys embedding their issuer domain in a fixed prefix format, a discoverable /.well-known/api-key-config JSON file, unauthenticated revocation by possession of the full key, and declared constraints such as IP allowlists, expiry, scopes, and mTLS. An optional quarantine mode inspired by Toyota's andon cord restricts a reported key to read-only and throttled operation for a default 24-hour window before automatic revocation. The piece frames AI agents as making this urgent, since agents hold many credentials, can exfiltrate them via prompt injection, and can leak secrets into logs at machine speed.

SecurityWeek · 8d agoTools1

HVNC Backdoor Targets LATAM Organizations with Fake Tax and DocuSign Lures

A custom HVNC backdoor is targeting Latin American financial organizations via fake DocuSign and NFe tax-document lures, giving attackers hidden persistent remote access.

ANY.RUN researchers analyzed a multi-stage phishing campaign delivering a custom HVNC backdoor to banking and financial organizations in Latin America. The chain starts with fake DocuSign and NFe tax-document pages that serve per-visitor ZIP archives, followed by an LNK dropper, an NSIS loader, and a 64-bit backdoor masquerading as Windows Update Assistant. The implant provides hidden remote desktop control, keystroke monitoring, Firefox data theft, Startup-folder persistence, and EDR-aware behavior, communicating over TCP/27015.

ANY.RUN · 9d agoMalware in the wild

You've Got a BUD in Me: Authenticated Reads from Per-Block Write Logs

Researchers propose BUD, per-block write-log digests enabling blockchain validators to serve historical membership and exclusion proofs far cheaper than state-wide tries.

The paper introduces Block Update Digests (BUD), which authenticate each block's write log with predecessor pointers, plus a SuperBUD and exponential hierarchy to turn long unchanged intervals into short proofs. Soundness against adversarial provers and up to f Byzantine validators is proven under archive, attestation, and committee evidence assumptions. Benchmarks show a 50x state-size increase raises the base-BUD path only 1.24x versus 3.1x for in-memory and 69.5x for disk-backed Merkle Patricia tries, with read payloads below 800 bytes and p99 warm verification at 146 microseconds.

arXiv cs.CR · 7d agoResearch

Guppy: Efficient Light Clients via Recursive Zero-Knowledge Proofs

Guppy lets blockchain light clients verify full state via recursive zero-knowledge proofs without validators maintaining state commitments, processing thousands of updates per second.

Guppy is a light-client protocol in which validators commit only to state updates while an off-chain, untrusted service secured by recursive zero-knowledge proofs maintains a verifiable Merkle tree over the full state. A hash-chain commitment moves validator signature verification out of the proving circuit, and a parallel recursive proving pipeline keeps latency growth logarithmic with throughput. A Plonky2-based implementation maintains a tree of size 2^30 while processing thousands of updates per second, adding only 2-4 seconds of latency without increasing block-construction complexity.

arXiv cs.CR · 9d agoResearch

Has anybody seen my keys? A key-hierarchy strategy for rack-level security

Oxide's RFD 0301 proposes a rack-level key hierarchy using Shamir secret sharing and a trust quorum to protect data-at-rest keys.

Oxide's request for discussion (RFD 0301) lays out a key-hierarchy strategy for rack-level security, deriving keys from a rack secret protected by Shamir secret sharing across a trust quorum of sleds, with keys exchanged over authenticated sprockets sessions. The document maps which keys protect control-plane data, metrics, Crucible extents, and authentication tokens, and defines open questions on key lifecycle, locality, and compromise handling. Future work includes sealing shares with the root of trust so an attacker would need to steal K whole sleds to reconstruct the rack secret.

Alby Hub Critical Flaw Could Let Attackers Take Over Internet-Exposed Bitcoin Wallets

Alby warns a critical flaw in internet-exposed Alby Hub Bitcoin wallets (v1.7.0–v1.18.5) could allow takeover and fund theft; update to v1.24.0.

Alby disclosed a critical flaw in Alby Hub, its self-hosted Lightning wallet, affecting versions v1.7.0 through v1.18.5 when the management interface is reachable from the internet. The flaw could let attackers take over a wallet and send its funds; one affected user has been reported so far, with no word on losses. Versions v1.19.0 and later contain the fix, and Alby advises updating to v1.24.0, binding port 8080 to localhost or firewalled sources, and changing unlock passwords on previously exposed hubs. Full technical details will be published later under responsible disclosure.

The Hacker News · 8d agoVulnerability in the wild1

Slim Spider Steals Crypto Custody Secrets From Brazilian Financial Institution

CrowdStrike links previously unseen Slim Spider group to crypto custody secret theft at Brazilian financial institutions since March 2026.

CrowdStrike is tracking Slim Spider, a previously undocumented financially motivated group attacking Brazilian financial institutions since at least March 2026. The actor used custom Bash scripts to steal temporary cloud credentials, exfiltrated digital asset custody secrets, and used Foundry's cast tool to derive Ethereum wallet addresses, while deploying Go-based backdoor MikeDor and an implant impersonating Brazil's SPI instant payment infrastructure. Slim Spider also pivoted to Azure DevOps and Kubernetes clusters and used panels including NEXUS // Scanner, Painel de Emails Entra ID, and Painel Pix for reconnaissance and unauthorized Pix transfers. Separately, Google Threat Intelligence Group and Mandiant disclosed Breeze Comet (CL-CRI-1163), a Portuguese-speaking group since 2024 that breaches Brazilian payment infrastructure to run fraudulent Pix, Boleto, and STR transactions.

The Hacker News · 8d agoThreat actor in the wild

New Ted Backdoor Hides Inside Victims' Own HAProxy Builds to Intercept Web Traffic

Rapid7 found a new backdoor, ted, compiled into trojanized HAProxy at two South Korean organizations, with medium-confidence attribution to North Korean actors.

Rapid7 documented a previously undocumented Linux toolkit named ted compiled into the HAProxy load balancer binaries of two South Korean organizations in the automotive and media sectors. The implant intercepts web traffic, serves altered pages only to filtered visitors, and hides C2 exchanges from backend logs and HAProxy statistics; a companion RAT, curlRAT, beacons on a default 12-hour schedule. The toolkit also trojanizes crond, sshd, agetty, atd, and polkitd binaries and sanitizes logs and bash history. Rapid7 attributes the activity with medium confidence to North Korean state-sponsored actors, with domain infrastructure overlapping APT37 listings in maltrail and delivery resembling the Operation SyncHole campaign.

The Hacker News · 12d agoThreat actor in the wild

US Sanctions Iranian $6bn Crypto “Exchange” Shelbit

US sanctioned Iranian firm Shelbit, a fake crypto exchange that TRM Labs says handled $6bn, likely for laundering.

The US has sanctioned Shelbit, an Iranian entity presented as a cryptocurrency exchange. TRM Labs analysis indicates Shelbit was a fake exchange, with roughly $6bn in flows. Sanctions aim to disrupt Iranian illicit crypto finance channels.

Infosecurity Magazine · Aug 10, 2026Policy & legal

Hackers Clone Banking Apps Into Hidden Android Work Profiles to Evade Fraud Detection

GoldFactory-linked Gigabud and Vwork malware clone banking apps into hidden Android work profiles to evade fraud detection across 11+ countries.

Group-IB links Vwork, a modified version of the open-source Shelter app cloner, to the GoldFactory group and its Gigabud Android RAT, which clones victim banking apps into an isolated work profile so fraud sessions look clean to banks. From February through July 2026, researchers observed about 1,469 compromised devices and 1,281 potentially compromised logins in Indonesia, with estimated losses near $960,939. Targets span Brazil, Colombia, Egypt, Indonesia, Mexico, Morocco, the Philippines, Thailand, Türkiye, Laos, and a GCC state; delivery uses fake airline, tax, government, and banking apps pushed via phishing sites, messaging apps, and social media.

Cyber Security News · 7d agoMalware in the wild1

Eleethub: A Cryptocurrency Mining Botnet with Rootkit for Self

Unit 42 uncovered Eleethub, a Perl-based Bitcoin mining botnet using a crafted rootkit and libprocesshider to evade detection, still under development with few infections.

Unit 42 discovered an under-development Perl Shellbot campaign that mines Bitcoin using xmrig and emech while evading detection via a rootkit that replaces the ps tool and the LD_PRELOAD-based libprocesshider.so library. Infected devices download a malicious shell script, connect to IRC-based C2 at eleethub.com and the UnderNet network, and can receive commands for UDP/TCP floods, port scans, and HTTP attacks. The botnet can affect Unix systems and Windows 10 hosts running a Linux subsystem, and its operators use the 'Los Zetas' branding, though they are unlikely to be the Mexican drug cartel. Researchers found only a few compromised 'zombies' before the campaign expanded.

Palo Alto Unit 42 · 28d agoMalware in the wild

New Android malware relays bank cards to fraudsters while victims still hold them

Group-IB discovered WindRelay Android malware that streams NFC card data in real time, paired with SpyNote RAT, targeting Czechia, Slovakia, and Slovenia.

Group-IB identified WindRelay, an Android malware that uses NFC to communicate with victims' payment cards and relays the exchange live to attacker-controlled terminals. Fraudsters impersonate bank staff by phone, trick victims into installing a personalized SpyNote RAT, then silently deploy WindRelay to cash out using the victim-entered PIN. Researchers traced 23 samples on VirusTotal from November 2025 to July 2026, four C2 IPs, and campaigns against Czechia, Slovakia, and Slovenia. No affected apps were found on Google Play, and Google Play Protect detects known versions.

Help Net Security · Aug 17, 2026Malware in the wild

Fake AI trading agent steals crypto wallet passwords

Fake AI crypto trading agent sites deliver Needle Stealer, which replaces browser wallet extensions to steal wallet passwords, HP reports.

HP researchers tracked campaigns between April and June 2026 in which a fake AI trading agent site, tradingclaw[.]pro, distributed a Microsoft-signed OLEView executable that DLL side-loads a malicious iviewers.dll and launches Needle Stealer via process hollowing. Needle replaces one of seven browser wallet extensions, including MetaMask, Coinbase Wallet, and Phantom, to capture wallet passwords. Related campaigns used QR-code invoice phishing leading to fake OneDrive pages, Phantom Stealer sold as a penetration testing tool with VBScript-to-PowerShell steganographic loaders, and image-hidden payloads delivering XWorm, PureLogs Stealer, and Formbook; a perceptual-hash VirusTotal search found about 400 distinct rigged images.

Help Net Security · 3h agoMalware in the wild1

Signing the Transaction but Not the Decision: Whisper Attacks and a Binding Defense for AP2

Research shows AP2 agent-payment signatures can be manipulated into valid but wrong carts; proposed A-VIP defense binds signed intent to purchases.

A study demonstrates Whisper attacks on the AP2 agent payment protocol, where ordinary product-description text steers shopping agents into carts that pass every cryptographic check but no longer match user intent. Using Gemini Flash-Lite models specified by AP2's default sample agents, three attacks succeeded at 90%, 56%, and 73.3%, with the vulnerability spanning seventeen Google models, three agent frameworks, cross-vendor anchors, and Google's consumer assistant. The proposed A-VIP defense treats signed intent as a capability grant, binding credential lookups to sessions and cart lines to seen listings, blocking the first two attacks with zero false positives while surfacing unauthorized spending. The authors release A-VIP code, machine-checked invariants, and AP2-WhisperBench with 1,544 evaluation scenarios.

arXiv cs.CRupdated · 6d agofirst · 6d agoAI safety & security 2 sources1· 1 read

Why a cryptographic inventory is key for addressing the quantum computing threat

Tenable argues organizations need cryptographic inventories and phased plans to counter harvest-now-decrypt-later quantum attacks.

Tenable's blog warns that quantum computers will eventually break current public-key cryptographic algorithms, and that "harvest now, decrypt later" collection makes the risk operational today. It recommends building a comprehensive cryptographic inventory and executing a phased operational strategy to migrate toward quantum-resistant protection for stored and transmitted data.

Tenable Blog · 19d agoIndustry

Attacker stole a METR API key, used $600K worth of credits, and no one noticed for weeks

Attackers stole a METR API key via an exposed agent-run EC2 instance and consumed about $600,000 in public model credits over three weeks.

AI evaluation nonprofit METR disclosed two incidents. In March 2026, a fail-open bug in a vibe-coded app disabled authentication on a publicly accessible EC2 instance; an attacker prompted the running agent to reveal a model provider API key, added an SSH key for persistence, and consumed roughly $600,000 in free public-model credits over three weeks without being noticed. In May 2026, attackers probed METR's public infrastructure using agents, automated vulnerability discovery, credential stuffing, OAuth token attempts, and phishing; a separately exposed read-only SQL mechanism found by a bug bounty hunter risked leaking unpublished evaluation data, but no access to non-public data was confirmed.

The Register · Security · 15d agoData breach in the wild1

SafePal Hardware Wallet Maker Says Flaw Exposed Data of Nearly 40,000 Customers

SafePal disclosed an order-tracking plug-in authorization flaw exposing names, emails, addresses and purchase details of 39,798 hardware wallet customers; no wallet credentials affected.

Hardware wallet maker SafePal disclosed that an authorization flaw in an order-tracking plug-in exposed names, email addresses, shipping addresses, phone numbers and purchase details of approximately 39,798 customers. No seed phrases, private keys, wallet credentials or financial information were exposed, and SafePal found no evidence of wallet or fund compromise. A separate configuration error left a data-cleanup process broken between September 2025 and April 2026, extending the affected order window back to March 2025. A threat actor has advertised a matching dataset on a cybercrime forum, and the company has fixed the flaw, cut data retention to 90 days, purged affected records, engaged third-party validators and taken down over 30 phishing sites.

The Hacker News · Aug 18, 2026Data breach in the wild

Fake GTA 6 leaked copy drains your crypto wallet

A fake GTA 6 leaked-copy website loads a multi-chain crypto wallet drainer that sweeps Solana balances and can steal assets across seven blockchain networks.

A fake Grand Theft Auto VI countdown site offers a supposed leaked copy for $50 or 1 SOL and loads a wallet drainer on page visit. An embedded Solana script transfers nearly the entire wallet balance, while a separate 2.4 MB script built on a legitimate wallet-connector tool targets wallets on Ethereum, Polygon, BNB Smart Chain, Avalanche, Arbitrum, Base, and Fantom, including stablecoins and NFT collections. The drainer geo-blocks CIS countries via a CIS_Protection setting, profiles visitor holdings, and evades automated scanners, suggesting a rented drainer-as-a-service.

Malwarebytes Labs · 15d agoPhishing & fraud

Party’s over for scammers who went on spending spree after $240M bitcoin theft

AP report on scammers' spending spree after a $240 million bitcoin social engineering theft, as ringleader Malone Lam nears a plea agreement.

DataBreaches.net syndicates AP reporting on the $240 million bitcoin theft from a Washington, D.C. resident via social engineering calls impersonating Google and Gemini. Alleged ringleader Malone Lam, 22, faces a plea hearing; the scam network spent stolen funds on cars, jets, and mansions before FBI arrests. Crypto investment fraud complaints to the FBI rose nearly 50% in 2025.

DataBreaches.net · 9d agoPolicy & legal

Search results are sending people to fake Bitrefill checkouts

Scam sites impersonating Bitrefill's crypto checkout appear in search results, tricking victims into sending up to $1,990 in crypto directly to scammers.

Malwarebytes documents a cluster of lookalike domains copying Bitrefill's gift card checkout, surfaced via search engine results rather than email. Victims choose an amount up to $1,990 and pay in Bitcoin, Ethereum, USDC, USDT, Solana, or Litecoin to scammer-controlled addresses, with no recourse since crypto payments are irreversible. Domains use typosquatting and Punycode/IDN homoglyph tricks, and the fake sites run commercial analytics software to measure and optimize victim conversion. Bitrefill's security team is working with takedown specialists to remove the sites.

Malwarebytes Labs · 2d agoPhishing & fraud

North Korea’s Lazarus Operates Through Six Distinct Cyber Clusters

Sekoia and Kudelski Security reclassify North Korea's Lazarus umbrella into six clusters spanning espionage, financial theft, and fake IT worker operations.

New research by Sekoia and Kudelski Security, published September 7, divides the former Lazarus umbrella into TEMP.Hermit, Citrine Sleet, CryptoCore, Jade Sleet, Moonstone Sleet, and Famous Chollima, mostly under North Korea's military intelligence bureau (GRIB). The former APT38 likely split into CryptoCore and Jade Sleet, focused on cryptocurrency, Web3, and blockchain targets. Moonstone Sleet combines espionage with financially motivated operations, using custom malware alongside Qilin ransomware-as-a-service. Thousands of fake IT workers generate regime revenue and provide access, linked to incidents like the $62.5M Munchables protocol theft.

Infosecurity Magazine · 10d agoThreat actor