59 Victims, Zero Authentication: A ClickFix Campaign Force-Installs a Chrome Extension Banking Stealer and Leaves the Entire C2 Wide Open

Pulse ID: 69e06a4020aab69afffdb741
Pulse Link: https://otx.alienvault.com/pulse/69e06a4020aab69afffdb741
Pulse Author: Tr1sa111
Created: 2026-04-16 04:49:04

Be advised, this data is unverified and should be considered preliminary. Always do further verification.

#Bank #Chrome #ChromeExtension #CyberSecurity #InfoSec #OTX #OpenThreatExchange #RCE #bot #Tr1sa111

108 Chrome Extensions Linked to Data Exfiltration and Session Theft via Shared C2 Infrastructure

Pulse ID: 69e06a47f33088e3fdb5744f
Pulse Link: https://otx.alienvault.com/pulse/69e06a47f33088e3fdb5744f
Pulse Author: Tr1sa111
Created: 2026-04-16 04:49:11

Be advised, this data is unverified and should be considered preliminary. Always do further verification.

#Chrome #ChromeExtension #CyberSecurity #InfoSec #OTX #OpenThreatExchange #RAT #bot #Tr1sa111

108 Chrome Extensions Linked to Data Exfiltration and Session Theft via Shared C2 Infrastructure

A coordinated campaign of 108 malicious Chrome extensions operated through shared command-and-control infrastructure at cloudapi[.]stream has been identified, collectively accounting for approximately 20,000 installations. The campaign spans multiple threat categories: 54 extensions steal Google account identities via OAuth2, one extension actively exfiltrates Telegram Web sessions every 15 seconds, and 45 extensions contain a universal backdoor enabling arbitrary URL execution on browser startup. Published under five distinct publisher identities (Yana Project, GameGen, SideGames, Rodeo Games, and InterAlt), these extensions masquerade as legitimate tools including Telegram sidebar clients, slot games, YouTube and TikTok enhancers, and translation utilities. All extensions route stolen credentials, user identities, and browsing data to servers controlled by the same operator, with infrastructure confirming a Malware-as-a-Service business model.

Pulse ID: 69de5f631a2f4bca81392ccd
Pulse Link: https://otx.alienvault.com/pulse/69de5f631a2f4bca81392ccd
Pulse Author: AlienVault
Created: 2026-04-14 15:38:11

Be advised, this data is unverified and should be considered preliminary. Always do further verification.

#BackDoor #Browser #Chrome #ChromeExtension #Cloud #CyberSecurity #Google #InfoSec #Malware #MalwareAsAService #OTX #OpenThreatExchange #RAT #Telegram #Troll #YouTube #bot #AlienVault

59 Victims, Zero Authentication: A ClickFix Campaign Force-Installs a Chrome Extension Banking Stealer and Leaves the Entire C2 Wide Open

A Brazilian banking fraud operation leveraging ClickFix social engineering was discovered through a community tip, exposing a completely unauthenticated command-and-control infrastructure. The campaign deploys a malicious Chrome extension masquerading as a Banco Central do Brasil tool, force-installed via Chrome Cloud Management enrollment tokens. The extension achieves zero antivirus detections while targeting eight Brazilian financial institutions. At investigation time, 59 machines were compromised with seven active connections. The operator's C2 server exposed all endpoints without authentication, including admin panels, live victim screenshots, stolen credentials in cleartext, and intercepted Pix payment data. Attribution was established through WHOIS records revealing the operator's real name, CPF, and email address. The operation specifically targeted Northern Brazilian regional banks and credit cooperatives, with evidence of compromising a school fund account.

Pulse ID: 69de47aacc631b04e06bae89
Pulse Link: https://otx.alienvault.com/pulse/69de47aacc631b04e06bae89
Pulse Author: AlienVault
Created: 2026-04-14 13:56:58

Be advised, this data is unverified and should be considered preliminary. Always do further verification.

#Bank #Brazil #Chrome #ChromeExtension #Cloud #CyberSecurity #Email #Endpoint #InfoSec #Mac #OTX #OpenThreatExchange #RAT #RCE #SocialEngineering #bot #AlienVault

📌 EchoTab : gestionnaire d'onglets Chrome open-source, keyboard-first, local-only et ultra performant. #Productivity #ChromeExtension

https://mondary.design/2026/04/echotab-gestionnaire-donglets-chrome-simple-et-performant/?utm_source=mastodon&utm_medium=jetpack_social

GlassWorm attack installs fake browser extension for surveillance

GlassWorm is a sophisticated malware targeting developers through compromised code repositories and package managers. It executes in stages, starting with a stealthy infection that fingerprints the machine and fetches further payloads via the Solana blockchain. The malware steals sensitive data, including cryptocurrency wallets and development credentials, installs a Remote Access Trojan (RAT), and deploys a fake Chrome extension for extensive surveillance. It uses distributed hash tables and blockchain for resilient command and control. While initially focused on developers with potential cryptocurrency assets, the stolen information could enable wider supply chain attacks. Prevention strategies include careful package management, regular extension audits, and up-to-date anti-malware solutions.

Pulse ID: 69c59ad1d050c7b6a823051e
Pulse Link: https://otx.alienvault.com/pulse/69c59ad1d050c7b6a823051e
Pulse Author: AlienVault
Created: 2026-03-26 20:45:05

Be advised, this data is unverified and should be considered preliminary. Always do further verification.

#BlockChain #Browser #Chrome #ChromeExtension #CyberSecurity #FakeBrowser #InfoSec #Mac #Malware #OTX #OpenThreatExchange #RAT #RemoteAccessTrojan #SupplyChain #Trojan #Worm #bot #cryptocurrency #developers #AlienVault